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1.
Neurobiol Stress ; 29: 100608, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38323165

RESUMO

Background: Childhood abuse is an underappreciated source of stress, associated with adverse mental and physical health consequences. Childhood abuse has been directly associated with risky behavior thereby increasing the likelihood of alcohol misuse and risk of HIV infection, conditions associated with brain structural and functional deficits. Here, we examined the neural and behavioral correlates of childhood trauma history in alcohol use disorder (AUD), HIV infection (HIV), and their comorbidity (AUD+HIV). Methods: Occurrence of childhood trauma was evaluated by retrospective interview. Cortical (frontal, temporal, parietal, and occipital), subcortical (hippocampus, amygdala), and regional frontal volumes were derived from structural MRI, adjusted for intracranial volume and age. Test scores of executive functioning, attention/working memory, verbal/visual learning, verbal/visual memory, and motor speed functional domains were standardized on age and education of a laboratory control group. Results: History of childhood abuse was associated with smaller frontal lobe volumes regardless of diagnosis. For frontal subregional volumes, history of childhood abuse was selectively associated with smaller orbitofrontal and supplementary motor volumes. In participants with a child abuse history, poorer verbal/visual memory performance was associated with smaller orbitofrontal and frontal middle volumes, whereas in those without childhood abuse, poorer verbal/visual memory performance was associated with smaller orbitofrontal, frontal superior, and supplemental motor volumes. Conclusions: Taken together, these results comport with and extend the findings that childhood abuse is associated with brain and behavioral sequelae in AUD, HIV, and AUD+HIV comorbidity. Further, these findings suggest that sequelae of abuse in childhood may be best conceptualized as a spectrum disorder as significant deficits may be present in those who may not meet criteria for a formal trauma-related diagnosis yet may be suffering enduring stress effects on brain structural and functional health.

2.
J Psychiatr Res ; 163: 230-239, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-37230007

RESUMO

Experience of childhood trauma, especially physical, emotional, and sexual abuse, carries a risk for developing alcohol use disorder (AUD) and engaging in risky behaviors that can result in HIV infection. AUD and HIV are associated with compromised self-reported health-related quality of life (HRQoL) possibly intersecting with childhood trauma. To determine whether poor HRQoL is heightened by AUD, HIV, their comorbidity (AUD + HIV), number of trauma events, or poor resilience, 108 AUD, 45 HIV, 52 AUD + HIV, and 67 controls completed the SF-21 HRQoL, Brief Resilience Scale (BRS), Ego Resiliency Scale (ER-89), and an interview about childhood trauma. Of the 272 participants, 116 reported a trauma history before age 18. Participants had a blood draw, AUDIT questionnaire, and interview about lifetime alcohol consumption. AUD, HIV, and AUD + HIV had lower scores on HRQoL and resilience composite comprising the BRS and ER-89 than controls. Greater resilience was a significant predictor of better quality of life in all groups. HRQoL was differentially moderated in AUD and HIV: more childhood traumas predicted poorer quality of life in AUD and controls, whereas higher T-lymphocyte count contributed to better quality of life in HIV. This study is novel in revealing a detrimental impact on HRQoL from AUD, HIV, and their comorbidity, with differential negative contribution from trauma and beneficial effect of resilience to quality of life. Channeling positive effects of resilience and reducing the incidence and negative impact of childhood trauma may have beneficial effects on health-related quality of life in adulthood independent of diagnosis.


Assuntos
Experiências Adversas da Infância , Alcoolismo , Infecções por HIV , Humanos , Adolescente , Alcoolismo/epidemiologia , Alcoolismo/psicologia , Infecções por HIV/epidemiologia , Qualidade de Vida/psicologia , Consumo de Bebidas Alcoólicas
3.
Brain Struct Funct ; 228(3-4): 845-858, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37069296

RESUMO

Episodic memory deficits occur in people living with HIV (PLWH) and individuals with Parkinson's disease (PD). Given known effects of HIV and PD on frontolimbic systems, episodic memory deficits are often attributed to executive dysfunction. Although executive dysfunction, evidenced as retrieval deficits, is relevant to mnemonic deficits, learning deficits may also contribute. Here, the California Verbal Learning Test-II, administered to 42 PLWH, 41 PD participants, and 37 controls, assessed learning and retrieval using measures of free recall, cued recall, and recognition. Executive function was assessed with a composite score comprising Stroop Color-Word Reading and Backward Digit Spans. Neurostructural correlates were examined with MRI of frontal (precentral, superior, orbital, middle, inferior, supplemental motor, medial) and limbic (hippocampus, thalamus) volumes. HIV and PD groups were impaired relative to controls on learning and free and cued recall trials but did not differ on recognition or retention of learned material. In no case did executive functioning solely account for the observed mnemonic deficits or brain-performance relations. Critically, the shared learning and retrieval deficits in HIV and PD were related to different substrates of frontolimbic mnemonic neurocircuitry. Specifically, diminished learning and poorer free and cued recall were related to smaller orbitofrontal volume in PLWH but not PD, whereas diminished learning in PD but not PLWH was related to smaller frontal superior volume. In PD, poorer recognition correlated with smaller thalamic volume and poorer retention to hippocampal volume. Although memory deficits were similar, the neural correlates in HIV and PD suggest different pathogenic mechanisms.


Assuntos
Infecções por HIV , Memória Episódica , Doença de Parkinson , Humanos , Doença de Parkinson/complicações , Doença de Parkinson/diagnóstico por imagem , Doença de Parkinson/patologia , Infecções por HIV/complicações , Transtornos da Memória/diagnóstico por imagem , Transtornos da Memória/etiologia , Rememoração Mental , Testes Neuropsicológicos
4.
J Psychiatr Res ; 152: 152-159, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35724497

RESUMO

The COVID-19 pandemic led to unprecedented restrictions to mitigate disease spread, leading to consequences affecting mental health. Many studies examining COVID-19 pandemic effects on well-being and mental health initiated inquiry after the pandemic onset, whereas we used self-report questionnaires obtained before the pandemic to re-assess the same functions during the pandemic. Participants were drawn from our ongoing longitudinal studies of people with HIV infection, alcohol use disorder (AUD), HIV + AUD comorbidity, and controls. We used phone or mail contact to invite all to participate in our COVID phone survey, which included three self-report questionnaires: Health-related Quality of Life (QoL), State-Trait Anxiety Inventory (STAI), and Alcohol Use Disorder Identification Test (AUDIT). Of 218 eligible participants, 86 responded (July 2020-March 2021): clinical (29 men, 23 women; 17 AUD, 21 HIV, 14 HIV + AUD); control (17 men, 17 women). QoL scores declined, and anxiety symptoms increased from pre-COVID surveys in all groups; clinical women reported greater negative changes than the other groups. QoL subscales revealed COVID-related declines in emotional well-being in all groups, with clinical women reporting additional declines in energy, physical and social functioning, health, and pain increase. Clinical men also reported health declines. Although AUDIT scores were stable in all groups between assessments, changes in AUDIT scores were inversely correlated with QoL scores in clinical women; in clinical men, changes in STAI scores were inversely correlated with QoL scores. Although all groups were adversely affected by the pandemic, the negative effects were greater in the clinical group regardless of diagnosis and greatest in clinical women.


Assuntos
Alcoolismo , COVID-19 , Infecções por HIV , Ansiedade/epidemiologia , Ansiedade/psicologia , Feminino , Infecções por HIV/complicações , Infecções por HIV/epidemiologia , Infecções por HIV/psicologia , Humanos , Masculino , Pandemias , Estudos Prospectivos , Qualidade de Vida/psicologia , Inquéritos e Questionários
5.
Artigo em Inglês | MEDLINE | ID: mdl-33558196

RESUMO

BACKGROUND: Individuals with alcohol use disorder (AUD) have a heightened risk of contracting HIV infection. The effects of these two diseases and their comorbidity on brain structure have been well described, but their effects on brain function have never been investigated at the scale of whole-brain connectomes. METHODS: In contrast with prior studies that restricted analyses to specific brain networks or examined relatively small groups of participants, our analyses are based on whole-brain functional connectomes of 292 participants. RESULTS: Relative to participants without AUD, the functional connectivity between the anterior cingulate cortex and orbitofrontal cortex was lower for participants with AUD. Compared with participants without AUD+HIV comorbidity, the functional connectivity between the anterior cingulate cortex and hippocampus was lower for the AUD+HIV participants. Compromised connectivity between these pairs was significantly correlated with greater total lifetime alcohol consumption; the effects of total lifetime alcohol consumption on executive functioning were significantly mediated by the functional connectivity between the pairs. CONCLUSIONS: Taken together, our results suggest that the functional connectivity of the anterior cingulate cortex is disrupted in individuals with AUD alone and AUD with HIV infection comorbidity. Moreover, the affected connections are associated with deficits in executive functioning, including heightened impulsiveness.


Assuntos
Alcoolismo , Infecções por HIV , Humanos , Alcoolismo/complicações , Giro do Cíngulo , Infecções por HIV/complicações , Imageamento por Ressonância Magnética/métodos , Consumo de Bebidas Alcoólicas , Comorbidade
6.
Drug Alcohol Depend ; 228: 109058, 2021 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-34610518

RESUMO

BACKGROUND: Episodic memory deficits occur in alcohol use disorder (AUD), but their anatomical substrates remain in question. Although persistent memory impairment is classically associated with limbic circuitry disruption, learning and retrieval of new information also relies on frontal systems. Despite AUD vulnerability of frontal lobe integrity, relations between frontal regions and memory processes have been under-appreciated. METHODS: Participants included 91 AUD (49 with a drug diagnosis history) and 36 controls. Verbal and visual episodic memory scores were age- and education-corrected. Structural magnetic resonance imaging (MRI) data yielded regional frontal lobe (precentral, superior, orbital, middle, inferior, supplemental motor, and medial) and total hippocampal volumes. RESULTS: AUD were impaired on all memory scores and had smaller precentral frontal and hippocampal volumes than controls. Orbital, superior, and inferior frontal volumes and lifetime alcohol consumption were independent predictors of episodic memory in AUD. Selectivity was established with a double dissociation, where orbital frontal volume predicted verbal but not visual memory, whereas inferior frontal volumes predicted visual but not verbal memory. Further, superior frontal volumes predicted verbal memory in AUD alone, whereas orbital frontal volumes predicted verbal memory in AUD+drug abuse history. CONCLUSIONS: Selective relations among frontal subregions and episodic memory processes highlight the relevance of extra-limbic regions in mnemonic processes in AUD. Memory deficits resulting from frontal dysfunction, unlike the episodic memory impairment associated with limbic dysfunction, may be more amenable to recovery with cessation or reduction of alcohol misuse and may partially explain the heterogeneity in episodic memory abilities in AUD.


Assuntos
Alcoolismo , Memória Episódica , Consumo de Bebidas Alcoólicas , Alcoolismo/complicações , Alcoolismo/diagnóstico por imagem , Hipocampo , Humanos , Imageamento por Ressonância Magnética , Transtornos da Memória/diagnóstico por imagem , Testes Neuropsicológicos
7.
Neuropsychology ; 35(7): 691-705, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34323563

RESUMO

OBJECTIVE: In light of the increased longevity of people living with HIV infection (PLWH) undergoing antiretroviral therapy (ART), the present study aimed to determine the effects of mood disturbances alongside cognitive and motor symptoms on activities of daily living (ADLs) and quality of life (QOL) in older PLWH in comparison to an aging control sample without notable medical history (CTL) and individuals with Parkinson's disease (PD). METHOD: Forty-one PLWH, 41 individuals with PD, and 37 CTL, aged 45-79 years, underwent neuropsychological, psychological, and neurological assessment including depressive and anxiety symptoms, physical (ADL-p) and instrumental (ADL-i) daily activities, Unified Parkinson's Disease Rating Scale motor ADLs (ADL-UPDRS-II), QOL, and cognitive and motor functions. Hierarchical regression analyses assessed the relative contribution of predictors including demographics, disease-related factors, comorbid conditions, and mood-related factors for ADL and QOL scales. RESULTS: PLWH and PD participants reported more depressive symptoms and higher anxiety and worse QOL and ADL-i than CTL. The PD group had greater ADL-p and motor-related ADL-UPDRS-II difficulties than PLWH and CTL groups. In PLWH, medical comorbidities and alcohol use disorder (AUD)/substance use disorder (SUD) histories significantly contributed to poor physical and motor ADLs. Mood scores, particularly depressive symptoms, were independent predictors of poor QOL and most ADLs in both clinical groups, above the contribution of cognitive compromise. CONCLUSIONS: Mood symptoms contribute significantly to poor ADLs and QOL in people aging with chronic diseases such as long-term HIV infection and PD. Comprehensive assessment and treatment of mood symptoms are recommended for ensuring optimal functional independence and life quality. (PsycInfo Database Record (c) 2022 APA, all rights reserved).


Assuntos
Infecções por HIV , Doença de Parkinson , Humanos , Idoso , Qualidade de Vida/psicologia , Doença de Parkinson/complicações , Doença de Parkinson/tratamento farmacológico , Doença de Parkinson/diagnóstico , Atividades Cotidianas/psicologia , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Cognição
8.
J Neuropsychol ; 15(2): 253-273, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33029951

RESUMO

Despite the life-extending success of antiretroviral pharmacotherapy in HIV infection (HIV), the prevalence of mild cognitive impairment in HIV remains high. Near-normal life expectancy invokes an emerging role for age-infection interaction and a potential synergy between immunosenescence and HIV-related health factors, increasing risk of cognitive and motor impairment associated with degradation in corticostriatal circuits. These neural systems are also compromised in Parkinson's disease (PD), which could help model the cognitive deficit pattern in HIV. This cross-sectional study examined three groups, age 45-79 years: 42 HIV, 41 PD, and 37 control (CTRL) participants, tested at Stanford University Medical School and SRI International. Neuropsychological tests assessed executive function (EF), information processing speed (IPS), episodic memory (MEM), visuospatial processing (VSP), and upper motor (MOT) speed and dexterity. The HIV and PD deficit profiles were similar for EF, MEM, and VSP. Although only the PD group was impaired on MOT compared with CTRL, MOT scores were related to cognitive scores in HIV but not PD. Performance was not related to depressive symptoms, socioeconomic status, or CD4+ T-cell counts. The overlap of HIV-PD cognitive deficits implicates frontostriatal disruption in both conditions. The motor-cognitive score relation in HIV provides further support for the hypothesis that these processes share similar underlying mechanisms in HIV infection possibly expressed with or exacerbated by ageing.


Assuntos
Disfunção Cognitiva , Infecções por HIV , Doença de Parkinson , Idoso , Envelhecimento , Cognição , Disfunção Cognitiva/complicações , Estudos Transversais , Função Executiva , Infecções por HIV/complicações , Humanos , Pessoa de Meia-Idade , Testes Neuropsicológicos , Doença de Parkinson/complicações
9.
Alcohol Res ; 40(2): 03, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32923307

RESUMO

Alcohol use and misuse is increasing among women. Although the prevalence of drinking remains higher in men than women, the gender gap is narrowing. This narrative review focuses on the cognitive sequelae of alcohol consumption in women. Studies of acute alcohol effects on cognition indicate that women typically perform worse than men on tasks requiring divided attention, memory, and decision-making. Beneficial effects of moderate alcohol consumption on cognition have been reported; however, a number of studies have cautioned that other factors may be driving that association. Although chronic heavy drinking affects working memory, visuospatial abilities, balance, emotional processing, and social cognition in women and men, sex differences mark the severity and specific profile of functional deficits. The accelerated or compressed progression of alcohol-related problems and their consequences observed in women relative to men, referred to as "telescoping," highlights sex differences in the pharmacokinetics, pharmacodynamics, cognitive, and psychological consequences of alcohol. Brain volume deficits affecting multiple systems, including frontolimbic and frontocerebellar networks, contribute to impairment. Taken together, sex-related differences highlight the complexity of this chronic disease in women and underscore the relevance of examining the roles of age, drinking patterns, duration of abstinence, medical history, and psychiatric comorbidities in defining and understanding alcohol-related cognitive impairment.


Assuntos
Consumo de Bebidas Alcoólicas/metabolismo , Alcoolismo/metabolismo , Disfunção Cognitiva/metabolismo , Adulto , Idoso , Cognição , Etanol/farmacologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Caracteres Sexuais
10.
AIDS ; 34(3): 391-403, 2020 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-31725430

RESUMO

OBJECTIVES: The comorbidity of HIV infection and alcoholism (ALC) is prevalent. Wernicke's encephalopathy, a neurological disorder resulting from thiamine depletion, has been generally associated with alcoholism but has also been reported in HIV infection. This study examined whether subclinical Wernicke's encephalopathy signs could contribute to the heterogeneity of cognitive and motor deficits observed in individuals with both disease conditions (HIV+ALC). DESIGN: Sixty-one HIV+ALC individuals and 59 controls were assessed on attention and working memory, production, immediate and delayed episodic memory, visuospatial abilities, and upper limb motor function. METHODS: Using Caine criteria (dietary deficiency, oculomotor abnormality, cerebellar dysfunction, and altered mental state), HIV+ALC individuals were classified by subclinical Wernicke's encephalopathy risk factors. RESULTS: Signs of subclinical Wernicke's encephalopathy were present in 20% of the HIV+ALC participants. For attention/working memory, delayed memory, and upper limb motor function, HIV+ALC Caine 2+ (i.e. meeting two or three criteria) demonstrated the most severe deficits, scoring lower than HIV+ALC Caine 1 (i.e. meeting one criterion), HIV+ALC Caine 0 (i.e. meeting no criteria), and controls. CONCLUSION: The high prevalence of subclinical signs of Wernicke's encephalopathy and relevance to performance indicate that this condition should be considered in assessment of HIV-infected individuals, especially when alcoholism comorbidity is known or suspected. Above and beyond clinical factors, such as depression, alcoholism and HIV disease-related variables, AIDS, hepatitis C and drug history known to mediate neuropsychological performance, subclinical Wernicke's encephalopathy signs could partly explain the heterogeneity in patterns and severity of cognitive and motor impairments in HIV-infected individuals with alcoholism comorbidity.


Assuntos
Alcoolismo , Disfunção Cognitiva , Infecções por HIV , Encefalopatia de Wernicke , Alcoolismo/complicações , Alcoolismo/epidemiologia , Disfunção Cognitiva/etiologia , Comorbidade , Feminino , Infecções por HIV/complicações , Humanos , Masculino , Pessoa de Meia-Idade , Encefalopatia de Wernicke/complicações , Encefalopatia de Wernicke/epidemiologia
11.
Neuropsychology ; 33(6): 757-759, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31448944

RESUMO

OBJECTIVE: Cognitive, behavioral, emotional, and neural dysfunction have been associated with misuse of alcohol for centuries. METHOD: Multidisciplinary research efforts have shed much light on the profile of impaired and spared functions associated with excessive heavy drinking, with heterogeneity noted among alcoholic individuals. RESULTS: Myriad factors may moderate or mediate the untoward effects of misuse of alcohol and an individual's likelihood of initiation and maintenance of abstinence. CONCLUSIONS: In this special section, a number of leading experts in the field of alcohol and alcoholism provide systematic and critical reviews of published research pertaining to specific topics of interest spanning from brain-behavior relations to the latest theories on cognitive training and the bidirectional influences of social and emotional deficits and chronic pain to the initiation and maintenance of alcoholism. (PsycINFO Database Record (c) 2019 APA, all rights reserved).


Assuntos
Abstinência de Álcool/psicologia , Alcoolismo/psicologia , Disfunção Cognitiva/psicologia , Alcoolismo/fisiopatologia , Alcoolismo/reabilitação , Encéfalo/fisiopatologia , Cognição , Disfunção Cognitiva/fisiopatologia , Emoções , Humanos , Testes Neuropsicológicos
12.
Brain Struct Funct ; 224(6): 2087-2101, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31161472

RESUMO

Despite the common co-occurrence of cognitive impairment and brain structural deficits in alcoholism, demonstration of relations between regional gray matter volumes and cognitive and motor processes have been relatively elusive. In pursuit of identifying brain structural substrates of impairment in alcoholism, we assessed executive functions (EF), episodic memory (MEM), and static postural balance (BAL) and measured regional brain gray matter volumes of cortical, subcortical, and cerebellar structures commonly affected in individuals with alcohol dependence (ALC) compared with healthy controls (CTRL). ALC scored lower than CTRL on all composite scores (EF, MEM, and BAL) and had smaller frontal, cingulate, insular, parietal, and hippocampal volumes. Within the ALC group, poorer EF scores correlated with smaller frontal and temporal volumes; MEM scores correlated with frontal volume; and BAL scores correlated with frontal, caudate, and pontine volumes. Exploratory analyses investigating relations between subregional frontal volumes and composite scores in ALC yielded different patterns of associations, suggesting that different neural substrates underlie these functional deficits. Of note, orbitofrontal volume was a significant predictor of memory scores, accounting for almost 15% of the variance; however, this relation was evident only in ALC with a history of a non-alcohol substance diagnosis and not in ALC without a non-alcohol substance diagnosis. The brain-behavior relations observed provide evidence that the cognitive and motor deficits in alcoholism are likely a result of different neural systems and support the hypothesis that a number of identifiable neural systems rather than a common or diffuse neural pathway underlies cognitive and motor deficits observed in chronic alcoholism.


Assuntos
Alcoolismo , Cognição/fisiologia , Substância Cinzenta/patologia , Córtex Motor/patologia , Vias Neurais/patologia , Adulto , Idoso , Alcoolismo/patologia , Alcoolismo/fisiopatologia , Cerebelo/patologia , Cerebelo/fisiopatologia , Função Executiva/fisiologia , Feminino , Substância Cinzenta/fisiopatologia , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Memória Episódica , Pessoa de Meia-Idade , Córtex Motor/fisiopatologia , Vias Neurais/fisiopatologia
13.
J Acquir Immune Defic Syndr ; 81(3): 345-354, 2019 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-30958387

RESUMO

BACKGROUND: Wernicke's encephalopathy (WE) is a neurological condition resulting from thiamine deficiency. Although commonly associated with alcoholism, nonalcoholic WE has been described in individuals with HIV infection, but subclinical WE may be underdiagnosed. The current study questioned whether the presence of subclinical WE signs underlies cognitive and motor deficits in HIV individuals as observed in alcoholism. SETTING: Fifty-six HIV-positive individuals (HIV+) and 53 HIV-negative controls (HIV-) were assessed on 6 cognitive and motor domains: attention/working memory, production, immediate and delayed episodic memory, visuospatial abilities, and upper-limb motor function. METHODS: Based on a rating scheme by Caine et al, HIV+ individuals were categorized by subclinical WE risk factors (dietary deficiency, oculomotor abnormality, cerebellar dysfunction, and altered mental state). Performance was expressed as age- and education-corrected Z-scores standardized on controls. RESULTS: Sorting by Caine criteria yielded 20 HIV+ as Caine 0 (ie, meeting no criteria), 22 as Caine 1 (ie, meeting one criterion), and 14 as Caine 2 (ie, meeting 2 criteria). Comparison among HIV+ Caine subgroups revealed a graded effect: Caine 0 performed at control levels, Caine 1 showed mild to moderate deficits on some domains, and Caine 2 showed the most severe deficits on each domain. CONCLUSION: This graded severity pattern of performance among Caine subgroups suggests that signs of subclinical WE can partly explain the heterogeneity in HIV-related cognitive and motor impairment. This study highlights the utility of Caine criteria in identifying potential causes of HIV-related neurocognitive disorders and has implications for disease management.


Assuntos
Complexo AIDS Demência/complicações , Transtornos Cognitivos/etiologia , Transtornos Motores/etiologia , Encefalopatia de Wernicke/etiologia , Complexo AIDS Demência/fisiopatologia , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , Sintomas Prodrômicos , Índice de Gravidade de Doença , Encefalopatia de Wernicke/fisiopatologia
14.
Addict Biol ; 24(2): 290-302, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-29243370

RESUMO

Variations in pattern and extent of cognitive and motor impairment occur in alcoholism (ALC). Causes of such heterogeneity are elusive and inconsistently accounted for by demographic or alcohol consumption differences. We examined neurological and nutritional factors as possible contributors to heterogeneity in impairment. Participants with ALC (n = 96) and a normal comparison group (n = 41) were examined on six cognitive and motor domains. Signs of historically determined subclinical Wernicke's encephalopathy were detected using the Caine et al. criteria, which were based on postmortem examination and chart review of antemortem data of alcoholic cases with postmortem evidence for Wernicke's encephalopathy. Herein, four Caine criteria provided quantification of dietary deficiency, cerebellar dysfunction, low general cognitive functioning and oculomotor abnormalities in 86 of the 96 ALC participants. Subgroups based on Caine criteria yielded a graded effect, where those meeting more criteria exhibited greater impairment than those meeting no to fewer criteria. These results could not be accounted for by history of drug dependence. Multiple regression indicated that compromised performance on ataxia, indicative of cerebellar dysfunction, predicted non-mnemonic and upper motor deficits, whereas low whole blood thiamine level, consistent with limbic circuit dysfunction, predicted mnemonic deficits. This double dissociation indicates biological markers that contribute to heterogeneity in expression of functional impairment in ALC. That non-mnemonic and mnemonic deficits are subserved by the dissociable neural systems of frontocerebellar and limbic circuitry, both commonly disrupted in ALC, suggests neural mechanisms that can differentially affect selective functions, thereby contributing to heterogeneity in pattern and extent of dysfunction in ALC.


Assuntos
Alcoolismo/complicações , Transtornos Cognitivos/etiologia , Comportamento Alimentar/fisiologia , Transtornos Motores/etiologia , Encefalopatia de Wernicke/complicações , Adolescente , Adulto , Criança , Doença Crônica , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
15.
Neuropsychology ; 33(2): 157-168, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30475047

RESUMO

OBJECTIVE: Individuals with HIV treated with antiretroviral therapy can expect to reach average life span, making them susceptible to combined disease and aging effects on cognitive and motor functions. Slowed processing speed in HIV is a concern for cognitive and everyday functioning and is sensitive to declines in aging. We hypothesized that information processing (IP) deficits, over and above that expected with normal aging, would occur in older HIV patients similar to those observed in Parkinson's disease (PD) patients, with both conditions affecting frontostriatal pathways. METHOD: Groups comprised 26 individuals with HIV infection, 29 with mild-to-moderate PD, and 21 healthy controls (C). Speed of IP was assessed with the oral version of the Symbol Digit Modalities Test and the color naming condition of the Golden Stroop Task. RESULTS: The HIV group was impaired on speed of IP tasks compared with both the C and PD groups. Even after controlling for normal aging effects, older age in the HIV group correlated with IP slowing. Slower IP speed was associated with poorer general cognitive ability and more extrapyramidal motor signs in older HIV-infected individuals. CONCLUSIONS: The notable effects of impaired IP speed, over and above neurotypical age-related declines, indicate that older HIV-infected individuals may have an enhanced vulnerability for developing nonmotor and motor symptoms despite antiretroviral therapy. Assessing for oral IP speed may provide the unique opportunity to identify early signs of progressive clinical declines in HIV. (PsycINFO Database Record (c) 2019 APA, all rights reserved).


Assuntos
Cognição/fisiologia , Infecções por HIV/psicologia , Doença de Parkinson/psicologia , Tempo de Reação/fisiologia , Idoso , Envelhecimento/psicologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos
16.
Alcohol Clin Exp Res ; 41(8): 1432-1443, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28618018

RESUMO

Alcoholism is a complex and dynamic disease, punctuated by periods of abstinence and relapse, and influenced by a multitude of vulnerability factors. Chronic excessive alcohol consumption is associated with cognitive deficits, ranging from mild to severe, in executive functions, memory, and metacognitive abilities, with associated impairment in emotional processes and social cognition. These deficits can compromise efforts in initiating and sustaining abstinence by hampering efficacy of clinical treatment and can obstruct efforts in enabling good decision making success in interpersonal/social interactions, and awareness of cognitive and behavioral dysfunctions. Despite evidence for differences in recovery levels of selective cognitive processes, certain deficits can persist even with prolonged sobriety. Herein is presented a review of alcohol-related cognitive impairments affecting component processes of executive functioning, memory, and the recently investigated cognitive domains of metamemory, social cognition, and emotional processing; also considered are trajectories of cognitive recovery with abstinence. Finally, in the spirit of critical review, limitations of current knowledge are noted and avenues for new research efforts are proposed that focus on (i) the interaction among emotion-cognition processes and identification of vulnerability factors contributing to the development of emotional and social processing deficits and (ii) the time line of cognitive recovery by tracking alcoholism's dynamic course of sobriety and relapse. Knowledge about the heterochronicity of cognitive recovery in alcoholism has the potential of indicating at which points during recovery intervention may be most beneficial.


Assuntos
Alcoolismo/diagnóstico , Transtornos Cognitivos/diagnóstico , Função Executiva , Transtornos da Memória/diagnóstico , Recuperação de Função Fisiológica , Comportamento Social , Alcoolismo/epidemiologia , Alcoolismo/terapia , Pesquisa Biomédica/tendências , Transtornos Cognitivos/epidemiologia , Transtornos Cognitivos/terapia , Função Executiva/fisiologia , Previsões , Humanos , Memória/fisiologia , Transtornos da Memória/epidemiologia , Transtornos da Memória/terapia , Recuperação de Função Fisiológica/fisiologia
17.
Dev Cogn Neurosci ; 24: 72-83, 2017 04.
Artigo em Inglês | MEDLINE | ID: mdl-28214667

RESUMO

Longitudinal study provides a robust method for tracking developmental trajectories. Yet inherent problems of retesting pose challenges in distinguishing biological developmental change from prior testing experience. We examined factors potentially influencing change scores on 16 neuropsychological test composites over 1year in 568 adolescents in the National Consortium on Alcohol and NeuroDevelopment in Adolescence (NCANDA) project. The twice-minus-once-tested method revealed that performance gain was mainly attributable to testing experience (practice) with little contribution from predicted developmental effects. Group mean practice slopes for 13 composites indicated that 60% to ∼100% variance was attributable to test experience; General Ability accuracy showed the least practice effect (29%). Lower baseline performance, especially in younger participants, was a strong predictor of greater gain. Contributions from age, sex, ethnicity, examination site, socioeconomic status, or family history of alcohol/substance abuse were nil to small, even where statistically significant. Recognizing that a substantial proportion of change in longitudinal testing, even over 1-year, is attributable to testing experience indicates caution against assuming that performance gain observed during periods of maturation necessarily reflects development. Estimates of testing experience, a form of learning, may be a relevant metric for detecting interim influences, such as alcohol use or traumatic episodes, on behavior.


Assuntos
Alcoolismo/psicologia , Cognição/fisiologia , Testes Neuropsicológicos/estatística & dados numéricos , Transtornos Relacionados ao Uso de Substâncias/psicologia , Adolescente , Adulto , Fatores Etários , Criança , Etnicidade , Feminino , Humanos , Estudos Longitudinais , Masculino , Fatores Sexuais , Classe Social , Adulto Jovem
18.
Neuropsychology ; 31(8): 843-845, 2017 11.
Artigo em Inglês | MEDLINE | ID: mdl-29376666

RESUMO

OBJECTIVE: The American Psychological Association (APA) celebrated its 125th anniversary in 2017. As part of this celebration, the APA journal Neuropsychology has published in its November 2017 issue 11 papers describing some of the advances in the field of neuropsychology over the past 25 years. METHOD: The papers address three broad topics: assessment and intervention, brain imaging, and theory and methods. RESULTS: The papers describe the rise of new assessment and intervention technologies, the impact of evidence for neuroplasticity on neurorehabilitation. Examples of the use of mathematical models of cognition to investigate latent neurobehavioral processes, the development of the field of neuropsychology in select international countries, the increasing sophistication of brain imaging methods, the recent evidence for localizationist and connectionist accounts of neurobehavioral functioning, the advances in neurobehavioral genomics, and descriptions of newly developed statistical models of longitudinal change. CONCLUSION: Together the papers convey evidence of the vibrant growth in the field of neuropsychology over the quarter century since APA's 100th anniversary in 1992. (PsycINFO Database Record


Assuntos
Aniversários e Eventos Especiais , Neuropsicologia , Sociedades Científicas , Cognição , Genômica , Humanos , Modelos Estatísticos
19.
J HIV AIDS Infect Dis ; 4(1)2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38481564

RESUMO

Background: Childhood trauma carries heightened risk for neuropsychological impairment and is a frequent concomitant of HIV infection (H) and alcoholism (Alc). Little is known about compounded effects of childhood trauma and these diseases on cognitive and motor functioning. We queried the relation between childhood trauma history (experiencing at least 1 of 13 specified traumas before age 18) and cognitive and motor performance in HIV infection with and without lifetime alcoholism. Methods: Relations between childhood trauma history (Tr) and four performance domains (episodic memory, information processing speed, executive function, and fine motor function) were examined via ANCOVAs covarying for age and education in four HIV groups: 21 H+Alc+Tr, 19 H+Alc, 19 H+Tr, and 25 HComp (H comparison group without Tr or Alc). Results: H+Tr, irrespective of Alc, performed poorly on the episodic memory domain. Specifically, immediate and delayed verbal recall, and immediate visual recall were affected in those with HIV and history of childhood trauma with or without alcoholism history. By contrast, H+Alc+Tr performed faster than H+Alc or H+Tr in information processing speed. Conclusion: The findings of poorer episodic memory in HIV infection with childhood trauma history corroborates previous reports and now extends findings to H+Alc+Tr trimorbidity. The novel interaction of alcoholism and trauma in HIV infection suggests that information processing speed is slowed with trauma history or alcoholism history alone in HIV but not with HIV+Alc+Tr trimorbidity, possibly reflecting greater impulsivity and hyperarousal in multiply-affected individuals.

20.
Alcohol Clin Exp Res ; 40(12): 2656-2666, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-27759882

RESUMO

BACKGROUND: Executive functioning and episodic memory impairment occur in HIV infection (HIV) and chronic alcoholism (ALC). Comorbidity of these conditions (HIV + ALC) is prevalent and heightens risk of vulnerability to separate and compounded deficits. Age and disease-related variables can also serve as mediators of cognitive impairment and should be considered, given the extended longevity of HIV-infected individuals in this era of improved pharmacological therapy. METHODS: HIV, ALC, HIV + ALC, and normal controls (NC) were administered traditional and computerized tests of executive function and episodic memory. Test scores were expressed as age- and education-corrected Z-scores; selective tests were averaged to compute Executive Function and Episodic Memory Composite scores. Efficiency scores were calculated for tests with accuracy and response times. RESULTS: HIV, ALC, and HIV + ALC had lower scores than NC on Executive Function and Episodic Memory Composites, with HIV + ALC even lower than ALC and HIV on the Episodic Memory Composite. Impairments in planning and free recall of visuospatial material were observed in ALC, whereas impairments in psychomotor speed, sequencing, narrative free recall, and pattern recognition were observed in HIV. Lower decision-making efficiency scores than NC occurred in all 3 clinical groups. In ALC, age and lifetime alcohol consumption were each unique predictors of Executive Function and Episodic Memory Composite scores. In HIV + ALC, age was a unique predictor of Episodic Memory Composite score. CONCLUSIONS: Disease-specific and disease-overlapping patterns of impairment in HIV, ALC, and HIV + ALC have implications regarding brain systems disrupted by each disease and clinical ramifications regarding the complexities and compounded damping of cognitive functioning associated with dual diagnosis that may be exacerbated with aging.


Assuntos
Alcoolismo/epidemiologia , Alcoolismo/psicologia , Função Executiva , Infecções por HIV/epidemiologia , Infecções por HIV/psicologia , Memória Episódica , Adulto , Idoso , California/epidemiologia , Estudos de Casos e Controles , Comorbidade , Humanos , Pessoa de Meia-Idade
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