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1.
Psychosom Med ; 86(4): 272-282, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38451838

RESUMO

OBJECTIVE: The present study prospectively examined dynamic associations among sleep, emotion dysregulation, and desire to live during the perinatal transition, as it was theorized that these factors may contribute to the emergence of postpartum suicide risk. METHOD: Ninety-four women ( Mage = 29.2 years; 23.4% Latina) wore wrist actigraphs and completed twice daily surveys for 7 days during the third trimester of pregnancy, 6 weeks postpartum, and 4 months postpartum. Multilevel, change-as-outcome models were built to examine changes in attractor dynamics among sleep, emotion dysregulation, and desire to live, as well as if sleep-emotion dysregulation dynamics differed based on participants' desires to live. RESULTS: From pregnancy to 6 weeks postpartum, emotion dysregulation ( B = -0.09, p = .032) and desire to live ( B = -0.16, p < .001) exhibited more stable temporal patterns around higher emotion dysregulation and lower desire to live. Compared to women who reported consistently high desires to live, those who experienced fluctuations in their desires to live exhibited lower, more stable sleep efficiency during pregnancy ( B = -0.90, p < .001). At 4 months postpartum, those with fluctuating desires to live exhibited a coupling dynamic whereby low sleep efficiency predicted increases in emotion dysregulation ( B = -0.16, p = .020). CONCLUSIONS: This study was the first to examine nonlinear dynamics among risk factors for postpartum suicide, which may be evident as early as pregnancy and 6 weeks postpartum. Sleep health, in particular, warrants further exploration as a key susceptibility factor in the emergence of postpartum suicide risk. PREREGISTRATION: Open Science Framework ( https://osf.io/qxb75/?view_only=799ffe5c048842dfb89d3ddfebaa420d ).


Assuntos
Período Pós-Parto , Humanos , Feminino , Adulto , Gravidez , Período Pós-Parto/psicologia , Regulação Emocional/fisiologia , Estudos Prospectivos , Sintomas Afetivos/fisiopatologia , Adulto Jovem , Terceiro Trimestre da Gravidez , Actigrafia
2.
J Sleep Res ; : e14170, 2024 Feb 13.
Artigo em Inglês | MEDLINE | ID: mdl-38351626

RESUMO

Natural short sleepers (NSS)-individuals who report minimal sleepiness or daytime dysfunction despite habitually sleeping less than the recommended amount (i.e., <7 h)-are a focus of growing interest in sleep research. Yet, the predominance of research on NSS has relied on subjective reports of functionality. The present study examined subjective and objective sleepiness among actigraphy-verified NSS in comparison with recommended (7-9 h/day) length sleepers (RLS) who reported similarly minimal daytime dysfunction. The study tested the hypothesis that under conditions of low environmental stimulation, NSS have increased risk of drowsiness and sleep onset, regardless of perceived alertness. The NSS and RLS groups were identified via screening and verified with a 14 day assessment with actigraphy, sleep diaries, and morning ratings of sleep restoration. In-laboratory resting electroencephalography (EEG) data were analysed using a computerised EEG-based algorithm (Vigilance Algorithm Leipzig; VIGALL) to classify second-by-second changes in objective sleepiness ranging from cognitively active alertness to sleep onset. Results demonstrated that NSS exhibited significantly higher drowsiness and sleep onset ('microsleeps') across 15 min of resting EEG despite perceptions of lower subjective sleepiness compared to RLS. Findings suggest that irrespective of perceived sleep restoration and alertness, NSS appear to be at high risk of objective sleepiness that is rapidly unmasked under conditions of low environmental stimulation. Such apparent discrepancy between subjective and objective sleepiness has potentially important public health implications. Future research directions, including tests of mechanisms and tailored sleep extension intervention, are discussed.

3.
Sleep Health ; 9(6): 903-909, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37704562

RESUMO

OBJECTIVES: Sleep insufficiency is associated with increased risk of morbidity and mortality. Bedtime procrastination, or the needless and voluntary delay in sleep, is a sleep-related behavior which may interfere with sleep health. The objective of this study is to comprehensively examine the daily associations among bedtime procrastination and measures of sleep regularity, satisfaction, timing, efficiency, and duration. METHODS: Two hundred and eighty young adult participants (79% female; Mage=24.4) completed daily sleep diaries and measures of bedtime procrastination and sleep restoration over 14days, in addition to measures of chronotype. Multilevel models were constructed to examine the associations between bedtime procrastination and sleep health. RESULTS: Greater bedtime procrastination was associated with poorer sleep health, including poorer self-reported sleep restoration, later sleep timing, less efficient sleep, and shorter sleep duration. These associations were significant at both within- and between-person levels, and persisted after statistically adjusting for individuals' chronotypes. CONCLUSIONS: This study offers bedtime procrastination as a putative mechanism for poor sleep health and finds that the associated risk of poor sleep from bedtime procrastination is independent of chronotype. Results presented here suggest that bedtime procrastination may be a relevant behavior in the development or maintenance of sleep and sleep-related disorders.


Assuntos
Procrastinação , Transtornos do Sono-Vigília , Adulto Jovem , Humanos , Feminino , Masculino , Sono , Privação do Sono , Autorrelato
4.
Int J Psychophysiol ; 190: 20-29, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37315587

RESUMO

Conceptual models of psychosocial influences on short-term changes (i.e., reactivity) in vagally-mediated heart rate variability (vmHRV) emphasize self-regulatory effort and social threat versus comfort. However, these two general perspectives have been tested separately in nearly all cases, limiting conclusions about the relative importance or possible interactive effects of effortful self-regulation and social stress. The present study compared effects of effort to regulate emotional expression and social stress versus safety on vmHRV reactivity during an interpersonal interaction, in a 2 (self-regulate emotion vs. express emotion freely) × 3 (positive vs. neutral vs. negative interaction valence) × 2 (male vs. female) between-subjects randomized factorial design. A sample of 180 undergraduates (90 women; 69 % White) discussed a current events topic (i.e., human-caused climate change) with a prerecorded partner, presented as a live interaction over a computer. Self-reports of affective responses, self-regulation effort, and appraisals of the partner's behavior, as well as observer ratings of participants' behavior during the interaction, supported the effectiveness of self-regulation and interaction valence manipulations, although the former manipulation may have been somewhat weaker than the latter. Primary analyses of high-frequency heart rate variability (HF-HRV) and root mean square of successive differences (RMSSD) in heart beat intervals recorded at baseline and during the interaction revealed larger decreases in vmHRV during negative than neutral or positive interactions, but no effects of self-regulation instructions. Overall, results indicated more robust effects of social stress on vmHRV reactivity, relative to effects of self-regulatory effort.


Assuntos
Regulação Emocional , Humanos , Masculino , Feminino , Regulação Emocional/fisiologia , Frequência Cardíaca/fisiologia , Emoções/fisiologia , Relações Interpessoais , Autorrelato
5.
Sleep ; 46(8)2023 08 14.
Artigo em Inglês | MEDLINE | ID: mdl-37225142

RESUMO

STUDY OBJECTIVES: Bedtime procrastination, or delays in bedtime not attributable to external obligations, is a behavioral tendency that undermines sleep and is conceptualized as a consequence of poor self-regulation. Prior studies investigating the mechanistic role of self-regulation in bedtime procrastination relied on cross-sectional methods and self-reported self-regulation. The present study examined the association between bedtime procrastination and both objective and self-reported executive functioning (EF) as indices of self-regulation, as well as the moderating role of chronotype, using methods that examined these associations at the daily level. METHODS: A total of 273 young adult participants (78% female; Mage = 24.4) completed daily measures of objective EF (i.e., Stroop task), self-reported EF (i.e., self-reported cognitive, behavioral, and emotional regulation difficulties), and bedtime procrastination over 14 days, in addition to measures of chronotype. Multilevel models were constructed to examine the associations between bedtime procrastination and EF, as well as EF-chronotype interactions. RESULTS: Poorer daily objective EF and self-reported behavioral regulation were associated with greater same-night bedtime procrastination. Additionally, poorer subjective cognitive and emotional regulation were associated with greater average bedtime procrastination across 14 days. Later chronotypes reported greater bedtime procrastination than early chronotypes. CONCLUSIONS: The present study provides support for the association between EF and bedtime procrastination, but finds no evidence for the moderating role of chronotype in this association. Results suggest that some EF processes may be more relevant to bedtime procrastination than others. Current findings have implications for assessment and intervention for this consequential sleep-relevant behavioral tendency.


Assuntos
Regulação Emocional , Procrastinação , Adulto Jovem , Humanos , Feminino , Masculino , Cronotipo , Estudos Transversais , Função Executiva
6.
Dev Psychopathol ; : 1-12, 2023 Jan 26.
Artigo em Inglês | MEDLINE | ID: mdl-36700362

RESUMO

Despite recent applications of a developmental psychopathology perspective to the perinatal period, these conceptualizations have largely ignored the role that childbirth plays in the perinatal transition. Thus, we present a conceptual model of childbirth as a bridge between prenatal and postnatal health. We argue that biopsychosocial factors during pregnancy influence postnatal health trajectories both directly and indirectly through childbirth experiences, and we focus our review on those indirect effects. In order to frame our model within a developmental psychopathology lens, we first describe "typical" biopsychosocial aspects of pregnancy and childbirth. Then, we explore ways in which these processes may deviate from the norm to result in adverse or traumatic childbirth experiences. We briefly describe early postnatal health trajectories that may follow from these birth experiences, including those which are adaptive despite traumatic childbirth, and we conclude with implications for research and clinical practice. We intend for our model to illuminate the importance of including childbirth in multilevel perinatal research. This advancement is critical for reducing perinatal health disparities and promoting health and well-being among birthing parents and their children.

7.
J Pers ; 91(3): 683-699, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-35988017

RESUMO

INTRODUCTION: Negative affective symptoms (e.g., anxiety, depression, and anger) are correlated and have parallel associations with outcomes, as do related personality traits (i.e., facets of neuroticism), often prompting statistical control (i.e., partialing) to determine independent effects. However, such adjustments among predictor variables can alter their construct validity. In three studies, the interpersonal circumplex (IPC) and a related analytic approach (i.e., Structural Summary Method) were used to evaluate changes in interpersonal correlates of negative affective characteristics resulting from partialing. METHODS: Samples of undergraduates (Sample 1 n = 3283; Sample 2 = 688) and married couples (n = 300 couples) completed self-report (three samples) and partner rating (sample 3) measures of anxiety, depression and anger, and IPC measures of interpersonal style. RESULTS: Anxiety, depression, and anger had expected interpersonal correlates across samples. Partialing depression eliminated interpersonal correlates of anxiety. When anxiety was controlled, depression measures were more strongly associated with submissiveness and less closely associated with low warmth. Adjustments involving anger magnified differences in dominance versus submissiveness associated with the negative affects. DISCUSSION: Removal of overlap among negative affective measures via partialing alters their interpersonal correlates, potentially complicating interpretation of adjusted associations.


Assuntos
Sintomas Afetivos , Relações Interpessoais , Humanos , Ansiedade/psicologia , Cônjuges/psicologia , Autorrelato
8.
Health Psychol ; 41(4): 291-300, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35201803

RESUMO

OBJECTIVE: Stress associated with global health threats such as the coronavirus disease 2019 (COVID-19) pandemic and related containment efforts may be associated with significant sleep disruption. Stress-related sleep disturbance is an established transdiagnostic risk factor; thus, identifying associations with coping strategies may inform future intervention efforts. The current study examined secondary control-oriented coping strategies, including positive reappraisal, which may be particularly effective in the context of stressors characterized by high uncertainty and low controllability such as a pandemic. METHOD: The current study (total N = 227 undergraduate students, predominantly female) examined the associations among primary and secondary control-oriented coping strategies, positive and negative affect (PA, NA), and the development of acute sleep disturbance in the month after the declaration of the COVID-19 pandemic. Control of prepandemic reported sleep disturbance allowed for prospective analyses of pandemic-related change. RESULTS: Participants reported high levels of stress due to the pandemic onset, including difficulties with time management, difficulties with work or school, and worry about the future. Reappraisal and acceptance were both associated with higher concurrent PA, lower NA, and less increase in sleep disturbance; however, positive reappraisal was the only coping strategy that predicted unique variance in increased sleep disturbance. CONCLUSIONS: Current findings add to our understanding of stress adaptation in response to stressors characterized by high severity, high uncertainty, and low controllability, such as the COVID-19 pandemic, and suggest that positive reappraisal and PA may foster resilience to stress-related sleep disturbance. (PsycInfo Database Record (c) 2022 APA, all rights reserved).


Assuntos
COVID-19 , Pandemias , Adaptação Psicológica , Feminino , Humanos , Estudos Prospectivos , SARS-CoV-2 , Sono
9.
J Am Coll Health ; 70(8): 2334-2341, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-33400638

RESUMO

Objective: The purpose of this study was to provide a more comprehensive look into the demographics of the veteran student subpopulation while exploring the relationship between the mental health of student veterans and their academic performance. Methods: A nationwide anonymous survey was distributed to student veterans who were enrolled in postsecondary institutions. Results: A large number of participants reported distress with symptoms of PTSD, depression, sleep disturbances, and/or suicidal ideation and attempts, and screened likely for mental health problems in these areas. Participants also endorsed academic problems ranging from the ability to stay focused to failing tests and quizzes. Additional findings demonstrated a positive association between GPA and both PTSD and depression. Conclusion: These findings can be used as a platform upon which to begin the discussion on the implications for mental health professionals, administrators, and educators.


Assuntos
Desempenho Acadêmico , Transtornos de Estresse Pós-Traumáticos , Veteranos , Humanos , Veteranos/psicologia , Saúde Mental , Estudantes/psicologia , Transtornos de Estresse Pós-Traumáticos/psicologia , Universidades , Ideação Suicida
10.
Health Psychol ; 40(9): 587-596, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34843320

RESUMO

OBJECTIVE: The adverse health effects of short sleep duration (i.e., six or fewer hours per night) are well established, including an increased risk of cardiovascular disease (CVD) and related mortality. However, there is heterogeneity in perceived sleep need among habitual short sleepers (HSS), with a sizable minority reporting no sleep-related daytime dysfunction. It has not been determined whether health risk associated with short sleep duration is consistent across individuals with and without reported dysfunction. The current study examined self-rated health (SRH), previously demonstrated to predict CVD risk, and objective CVD risk among HSS with and without reported dysfunction in the National Health and Nutrition Examination Surveys (NHANES). METHOD: Participants were adults age 40-79 in the 2005-2006 and 2007-2008 NHANES cycles. Assessments included the single item SRH (poor to excellent), self-reported average sleep duration, and self-reported daytime sleep-related dysfunction. Ten-year atherosclerotic CVD and high lifetime CVD risk (≥39%) were calculated using previously validated algorithms. RESULTS: HSS with no reported dysfunction rated their overall health significantly better than those with reported dysfunction; however, the "no dysfunction" HSS group evidenced modestly, though significantly, higher 10-year CVD risk compared with their dysfunction-reporting counterparts. High lifetime CVD risk, including younger adults age 20-39, was slightly higher for persons not reporting dysfunction, with the exception of short sleepers at the highest level of dysfunction who had the highest prevalence of high lifetime risk. CONCLUSIONS: Findings suggest that the absence of perceived sleep-related dysfunction does not confer lower CVD risk, despite higher SRH. (PsycInfo Database Record (c) 2021 APA, all rights reserved).


Assuntos
Doenças Cardiovasculares , Autoavaliação Diagnóstica , Adulto , Idoso , Doenças Cardiovasculares/epidemiologia , Humanos , Individualidade , Pessoa de Meia-Idade , Inquéritos Nutricionais , Fatores de Risco , Sono , Adulto Jovem
11.
Sleep Med Clin ; 16(4): 607-618, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34711385

RESUMO

Wearable technology has a history in sleep research dating back to the 1970s. Because modern wearable technology is relatively cheap and widely used by the general population, this represents an opportunity to leverage wearable devices to advance sleep medicine and research. However, there is a lack of published validation studies designed to quantify device performance against accepted gold standards, especially across different populations. Recommendations for conducting performance assessments and using wearable devices are now published with the goal of standardizing wearable device implementation and advancing the field.


Assuntos
Transtornos do Sono-Vigília , Dispositivos Eletrônicos Vestíveis , Actigrafia , Humanos , Reprodutibilidade dos Testes , Sono , Transtornos do Sono-Vigília/terapia
12.
Stress Health ; 36(4): 405-418, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32073201

RESUMO

Childhood trauma is associated with poor health outcomes in adulthood. Mechanisms for these associations are not well understood because past studies have focused predominantly on populations that have already developed physical and mental health problems. The present study examined the association between childhood trauma and stress-related vulnerability factors in a healthy adult sample (n = 79; 68% female, mean age = 27.5, SD = 6.5). Emotion regulation difficulties were examined as a potential mediator. Participants completed baseline laboratory assessments of reported childhood trauma, emotion regulation difficulties, prior month sleep quality, baseline impedance cardiography and behavioural tests of executive functioning (EF) and a three-day experience sampling assessment protocol that included sleep diary, reported and objective pre-sleep arousal, daily hassles and reported EF difficulties. Reported history of childhood abuse was significantly associated with difficulties in emotion regulation, self-report and objective pre-sleep arousal, diary-assessed sleep quality, daily hassles and reported EF difficulties. Reported history of childhood neglect was associated with greater pre-sleep arousal and poorer EF-behavioural control. Emotion regulation difficulties mediated the relationship between childhood abuse and reported pre-sleep arousal, daily hassles and reported EF difficulties. In conclusion, history of childhood trauma is associated with a variety of stress-related vulnerability factors in healthy adults that may be viable early intervention targets.


Assuntos
Experiências Adversas da Infância , Estresse Psicológico , Adulto , Experiências Adversas da Infância/psicologia , Nível de Alerta , Regulação Emocional , Função Executiva , Feminino , Humanos , Masculino , Fatores de Risco , Autorrelato , Sono , Estresse Psicológico/epidemiologia
13.
J Affect Disord ; 265: 77-84, 2020 03 15.
Artigo em Inglês | MEDLINE | ID: mdl-31957695

RESUMO

BACKGROUND: Sleep is a reliable correlate of suicidal thoughts and behaviors (STBs), yet few studies have directly examined negative affect in the context of this association. The present study combined daily experience methods with a laboratory paradigm to investigate suicide cognitions as a predictor of emotional responses to environmental stressors, and tested the role of nightly sleep parameters. METHOD: 72 participants (Mage = 24.25; 41 with a recent history of suicide ideation and 31 without a history of STBs) completed a four-day study. Suicide cognitions were measured on the first day, and actigraphy-based sleep duration and fragmentation, and morning ratings of prior night subjective sleep quality (SSQ) were subsequently measured over three consecutive nights. Participants returned on the fourth day to complete the Trier Social Stress Task, where self-report changes in negative affect immediately post-task (i.e., reactivity) and five minutes post-task (i.e., recovery) were observed. RESULTS: Regression analyses indicated that suicide cognitions predicted negative affect reactivity and recovery. Simple mediation analyses revealed that SSQ partially mediated the relation between suicide cognitions and negative affect recovery (especially shame), but not reactivity. No significant associations were observed for the actigraphy-based sleep parameters. LIMITATIONS: Just three nights of actigraphy-based data collection. A single item was used to measure SSQ. CONCLUSIONS: Suicide cognitions predict negative affective responses to situational stressors and SSQ may have a key role in this effect, especially the duration of negative emotional reactions. Hence, sleep and emotional reactivity may be potential targets for suicide prevention efforts.


Assuntos
Laboratórios , Ideação Suicida , Cognição , Humanos , Estudos Prospectivos , Sono
14.
Health Psychol ; 39(4): 325-334, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31841020

RESUMO

OBJECTIVE: Obstructive sleep apnea (OSA), a serious respiratory disorder, confers increased risk of cardiovascular disease and mortality. Adherence to the standard and effective treatment, continuous positive airway pressure (CPAP), is often poor. Personal relationships can influence adherence, but some forms of partner involvement (e.g., support, encouragement) have positive effects on CPAP adherence, whereas others (e.g., criticism, blame) are counterproductive. In the former, constructive partner efforts may enhance a patient's sense of autonomy, an important foundation for self-care. The present study examined how patients' perceptions of autonomy support from an intimate partner predict adherence to CPAP, and whether it is an independent predictor, relative to generally positive partner behavior (i.e., partner responsiveness) and partner negativity (i.e., negative social control). METHOD: Ninety-two married or cohabiting OSA patients (mean age 49.7 years) completed measures of perceived partner autonomy support, responsiveness, and negative social control at Days 14 and 60 of CPAP treatment. Objective daily CPAP machine adherence data were collected for 60 days. RESULTS: Perceived partner autonomy support predicted more minutes of CPAP used per night and increasing CPAP use over time. These effects were independent of the significant adverse effects of partner negative social control and the more limited beneficial effects of partner responsiveness. CONCLUSION: The study findings establish perceived partner autonomy support as an interpersonal predictor of adherence that is independent of negative social control and perceived partner responsiveness, and may inform psychosocial interventions for CPAP adherence and more general couple approaches to chronic illness management. (PsycINFO Database Record (c) 2020 APA, all rights reserved).


Assuntos
Pressão Positiva Contínua nas Vias Aéreas/métodos , Cooperação do Paciente/psicologia , Apneia Obstrutiva do Sono/terapia , Comportamento Social , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Autonomia Relacional , Resultado do Tratamento
15.
Biol Psychol ; 148: 107772, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-31577925

RESUMO

Both resting high-frequency heart rate variability (HF-HRV) and executive functioning (EF) are individual differences implicated in vulnerability to a wide range of adverse outcomes. The overlapping set of associations, along with theoretical models positing connections between the brain regions subserving the executive functions and the parasympathetic nervous system, suggest that the two factors should be correlated. Seeking to address limitations in prior research, the current study examined the association between EF, measured comprehensively with individually-administered neuropsychological tests and controlling for lower-order cognitive processes, and resting physiology, measured with impedence cardiography, in healthy, community participants (68% female; mean age = 27, SD = 6.5). Results confirmed a significant association between EF and resting HF-HRV, but no association with resting state sympathetic nervous system activation (pre-ejection period). These findings may inform future investigation of transdiagnostic mechanisms related to these two individual difference factors.


Assuntos
Função Executiva/fisiologia , Frequência Cardíaca/fisiologia , Sistema Nervoso Parassimpático/fisiologia , Descanso/fisiologia , Sistema Nervoso Simpático/fisiologia , Adulto , Encéfalo/fisiologia , Feminino , Voluntários Saudáveis , Humanos , Individualidade , Masculino , Modelos Teóricos , Testes Neuropsicológicos , Adulto Jovem
16.
Sleep ; 42(9)2019 09 06.
Artigo em Inglês | MEDLINE | ID: mdl-31152181

RESUMO

STUDY OBJECTIVES: Much of what we assume about the effects of short sleep duration on neural reward processing derives from total sleep deprivation studies. Although total sleep deprivation appears rare, habitual short sleep is common: 30% of working US adults report habitually sleeping ≤ 6 hours/night. It remains largely unknown whether habitual short sleepers exhibit similar reward processing brain activation patterns to those observed following total sleep deprivation in prior studies. Therefore, our aim was to test objectively reward processing brain activation patterns associated with self-reported habitual short sleep duration in a large sample. METHODS: Nine hundred and fifty-two adult participants from the Human Connectome Project database were grouped on reported habitual short (≤6 hours) vs. medium-length (7-9 hours) sleep duration using the Pittsburgh Sleep Quality Index (PSQI). Reward processing brain activation was examined using a gambling task during functional magnetic resonance imaging (fMRI). Subject-level covariates for age, sex, continuous sleep duration, daytime dysfunction, and PSQI total score are provided as supplemental analyses. RESULTS: Brain activation patterns revealed expected reward processing-related activation for age and sex. However, activation for sleep duration, dysfunction, and PSQI score did not correspond to those evident in previous total sleep deprivation studies. CONCLUSIONS: Self-reported short sleep duration, perceived sleep-related dysfunction, and sleep quality via PSQI do not appear to be meaningfully associated with activation in well-described regions of the human neurobiological reward circuit. As these findings are counter to prior results using experimental sleep deprivation, future work focused on more direct comparisons between self-reported sleep variables and experimental sleep deprivation appears warranted.


Assuntos
Encéfalo/fisiologia , Tomada de Decisões/fisiologia , Jogo de Azar/psicologia , Recompensa , Privação do Sono/fisiopatologia , Transtornos do Sono-Vigília/fisiopatologia , Adulto , Conectoma/métodos , Feminino , Objetivos , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Autorrelato , Sono/fisiologia , Fatores de Tempo , Adulto Jovem
18.
J Clin Exp Neuropsychol ; 40(10): 987-999, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-30112978

RESUMO

OBJECTIVE: The ability to detect covert markers of incipient cognitive decline among older adults before cognitive decline becomes overtly evident on traditional cognitive tests represents an important topic of research. Exaggerated reactions to novelty, reflected in novelty-induced increases in action planning latencies ("novelty effect"; NE) and low openness to experience (openness), have been previously associated with incipient cognitive decline among older adults who appeared cognitively normal at baseline. The purposes of the present study were to extend prior research on the utility of these markers by examining whether (a) NE and openness each predict cognitive change uniquely, and (b) whether these indices predict cognitive change above and beyond measures of memory, executive functions, processing speed/efficiency, premorbid IQ, and depressive symptoms. METHOD: Sixty-one cognitively normal community-dwelling older adults were administered a battery of tests assessing the relevant constructs at baseline and one-year follow up. Changes in cognitive status were assessed using the Demetia Rating Scale, 2nd Edition, NE was assessed using the Push-Turn-Taptap task (an electronic motor sequence learning task), and openness using the NEO Personality Inventory-Revised. The Test of Premorbid Functioning, and subtests from Repeatable Battery for the Assessment of Neuropsychological Status, Delis-Kaplan Executive Function System, and Wechsler Adult Intelligence Scale, 4th Edition, were used for additional assessment of baseline cognition. Depressive symptoms were assessed using the Geriatric Depression Scale. RESULTS: Results confirmed our hypothesis that both NE and openness contribute to prediction of cognitive change beyond baseline cognition and depressive symptoms, but none of the covariates (i.e., depression, executive functions, processing efficiency, or memory) themselves contributed to the model. NE and openness each contributed unique variance and were independent of each other. CONCLUSIONS: Openness and NE have the potential to provide evidence-based methods for estimating risk of future cognitive change in persons with currently normal standardized test scores.


Assuntos
Disfunção Cognitiva/psicologia , Valor Preditivo dos Testes , Idoso , Idoso de 80 Anos ou mais , Biomarcadores , Disfunção Cognitiva/diagnóstico , Depressão/psicologia , Função Executiva , Feminino , Humanos , Vida Independente , Inteligência , Masculino , Memória , Pessoa de Meia-Idade , Testes Neuropsicológicos , Personalidade , Escalas de Graduação Psiquiátrica , Desempenho Psicomotor , Tempo de Reação , Escalas de Wechsler
19.
Sleep ; 41(9)2018 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-29931335

RESUMO

Study Objectives: (1) Examine performance on an objective measure of reward-related cognitive impulsivity (delay discounting) among self-reported habitual short sleepers and medium (i.e. recommended 7-9 hours) length sleepers either reporting or not reporting daytime dysfunction; (2) Inform the debate regarding what type and duration of short sleep (e.g. 21 to 24 hours of total sleep deprivation, self-reported habitual short sleep duration) meaningfully influences cognitive impulsivity; (3) Compare the predictive utility of sleep duration and perceived dysfunction to other factors previously shown to influence cognitive impulsivity via delay discounting performance (age, income, education, and fluid intelligence). Methods: We analyzed data from 1190 adults from the Human Connectome Project database. Participants were grouped on whether they reported habitual short (≤6 hours) vs. medium length (7-9 hours) sleep duration and whether they perceived daytime dysfunction using the Pittsburgh Sleep Quality Index. Results: All short sleepers exhibited increased delay discounting compared to all medium length sleepers, regardless of perceived dysfunction. Of the variables examined, self-reported sleep duration was the strongest predictor of delay discounting behavior between groups and across all 1190 participants. Conclusions: Individuals who report habitual short sleep are likely to exhibit increased reward-related cognitive impulsivity regardless of perceived sleep-related daytime impairment. Therefore, there is a reason to suspect that these individuals exhibit more daytime dysfunction, in the form of reward-related cognitive impulsivity, than they may assume. Current findings suggest that assessment of sleep duration over the prior month has meaningful predictive utility for human reward-related impulsivity.


Assuntos
Cognição/fisiologia , Conectoma/métodos , Desvalorização pelo Atraso/fisiologia , Comportamento Impulsivo/fisiologia , Autorrelato , Sono/fisiologia , Adulto , Feminino , Objetivos , Hábitos , Humanos , Masculino , Autorrelato/normas , Privação do Sono/diagnóstico , Privação do Sono/fisiopatologia , Privação do Sono/psicologia , Fatores de Tempo
20.
Neuroimage ; 179: 156-165, 2018 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-29908310

RESUMO

OBJECTIVE: Individual differences in aesthetic engagement-the propensity to be moved by art, nature, and beauty-are associated with positive health outcomes, as well as stress resilience. The purpose of the current study was to identify potential neural substrate mechanisms underlying individual differences in aesthetic engagement and reported proneness to aesthetic chill. METHODS: Data from the Human Connectome Project (HCP) 1200 Subjects Release were utilized. Resting-state fMRI connectivity was extracted for 361 regions in the brain including cortical, subcortical and cerebellar regions for each participant, using participant-specific segmentation and parcellation of subcortical gray matter nuclei and a network-based statistics analytical approach. The Aesthetic Interests subcluster of the Openness to Experience scale (NEO-Five Factor Inventory; NEO-FFI) was used to characterize individual differences in aesthetic engagement and chill. RESULTS: Participants reporting higher aesthetic engagement, particularly proneness to aesthetic chill responses, exhibited significantly higher connectivity between the default network and sensory and motor cortices, higher connectivity between the ventral default and salience networks, and decreased connectivity between the cerebellum and somatomotor cortex. CONCLUSIONS: Current findings suggest that greater integration of the default mode network, involving processing of internal narrative, with neural representations of sensory perception and salience detection may be a mechanism underlying individual differences in aesthetic engagement. Thus, these individual differences may reflect general integration of environmental perception with internal emotional experience, which in turn may facilitate comfort with novelty, self-regulation, and positive adaptation to potentially stressful experiences.


Assuntos
Encéfalo/fisiologia , Estética , Individualidade , Resiliência Psicológica , Adulto , Conectoma , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Vias Neurais/fisiologia , Descanso/fisiologia , Estresse Psicológico/fisiopatologia , Adulto Jovem
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