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It has been observed that one's Behavioral Approach System (BAS) can have an effect on decision-making under uncertainty, although the results have been mixed. To discern the underlying neural substrates, we hypothesize that sex may explain the conflicting results. To test this idea, a large sample of participants was studied using resting state fMRI, utilizing fractional Amplitude of Low Frequency Fluctuations (fALFF) and Resting-State Functional Connectivity (rsFC) techniques. The results of the Iowa Gambling Task (IGT) revealed an interaction between sex and BAS, particularly in the last 60 trials (decision-making under risk). Males with high BAS showed poorer performance than those with low BAS. fALFF analysis showed a significant interaction between BAS group and sex in the left superior occipital gyrus, as well as the functional connectivity between this region and the left ventrolateral prefrontal cortex. Additionally, this functional connectivity was further positively correlated with male performance in the IGT, particularly in the decision-making under risk stage. Furthermore, it was found that the functional connectivity between left ventrolateral prefrontal cortex and left superior occipital gyrus could mediate the relationship between BAS and decision-making in males, particularly in the decision-making under risk stage. These results suggest possible sex-based differences in decision-making, providing an explanation for the inconsistent results found in prior research. Since the research was carried out exclusively with Chinese university students, it is essential to conduct further studies to investigate whether the findings can be generalized.
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Juego de Azar , Motivación , Humanos , Masculino , Toma de Decisiones , Corteza Prefrontal/diagnóstico por imagen , Corteza Cerebral , Imagen por Resonancia MagnéticaRESUMEN
Although awareness regarding patients with mild traumatic brain injury has increased, they have not received sufficient attention in clinics; hence, many patients still experience only partial recovery. Deficits in decision-making function are frequently experienced by these patients. Accurate identification of impairment in the early stages after brain injury is particularly crucial for timely intervention and the prevention of long-term cognitive consequences. Therefore, we investigated the changes in decision-making ability under tasks of ambiguity and risk in patients with mild traumatic brain injury with a rule-based neuropsychological paradigm. In this study, patients (n = 39) and matched healthy controls (n = 38) completed general neuropsychological background tests and decision-making tasks (Iowa Gambling Task and Game of Dice Task). We found that patients had extensive cognitive impairment in general attention, memory and information processing speed in the subacute phase, and confirmed that patients had different degrees of impairment in decision-making abilities under ambiguity and risk. Furthermore, the decline of memory and executive function may be related to decision-making dysfunction.
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Conmoción Encefálica , Juego de Azar , Humanos , Toma de Decisiones , Asunción de Riesgos , Juego de Azar/psicología , Cognición , Pruebas NeuropsicológicasRESUMEN
The Iowa Gambling Task (IGT) is used to assess decision-making in clinical populations. The original IGT does not disambiguate reward and punishment learning; however, an adaptation of the task, the "play-or-pass" IGT, was developed to better distinguish between reward and punishment learning. We evaluated the test-retest reliability of measures of reward and punishment learning from the play-or-pass IGT and examined associations with self-reported measures of reward/punishment sensitivity and internalizing symptoms. Participants completed the task across two sessions, and we calculated mean-level differences and rank-order stability of behavioral measures across the two sessions using traditional scoring, involving session-wide choice proportions, and computational modeling, involving estimates of different aspects of trial-level learning. Measures using both approaches were reliable; however, computational modeling provided more insights regarding between-session changes in performance, and how performance related to self-reported measures of reward/punishment sensitivity and internalizing symptoms. Our results show promise in using the play-or-pass IGT to assess decision-making; however, further work is still necessary to validate the play-or-pass IGT.
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Toma de Decisiones , Juego de Azar , Pruebas Neuropsicológicas , Castigo , Recompensa , Humanos , Masculino , Femenino , Adulto Joven , Toma de Decisiones/fisiología , Adulto , Reproducibilidad de los Resultados , Pruebas Neuropsicológicas/normas , Adolescente , Aprendizaje/fisiologíaRESUMEN
The Iowa Gambling Task (IGT) was designed to assess decision-making under conditions of complexity and uncertainty; it is currently one of the most widely used tests to assess decision-making in both experimental and clinical settings. In the original version of the task, participants are given a loan of play money and four decks of cards and are asked to maximize profits. Although any single card unpredictably yields wins/losses, variations in frequency and size of gains/losses ultimately make two decks more advantageous in the long term. Several studies have previously suggested that there may be a sex-related difference in IGT performance. Thus, the present study aimed to explore and quantify sex differences in IGT performance by pooling the results of 110 studies. The meta-analysis revealed that males tend to perform better than females on the classic 100-trial IGT (UMD = 3.381; p < 0.001). Furthermore, the significant heterogeneity observed suggests high variability in the results obtained by individual studies. Results were not affected by publication bias or other moderators. Factors that may contribute to differences in male and female performance are discussed, such as functional sex-related asymmetries in the ventromedial prefrontal cortex and amygdala, as well as differences in sensitivity to wins/losses.
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Recent neurocognitive models propose that the insula serves as a hub of interoceptive awareness system, modulating 2 interplaying neurocognitive systems: The posterior insula (PI) receives and integrates various interoceptive signals; these signals are then transmitted to the anterior insula for processing higher-order representations into awareness, where the dorsal anterior insula (dAI) modulates the prefrontal self-control system and the ventral anterior insula (vAI) modulates the amygdala (AMG)-striatal reward-seeking circuit. We sought to test this view using a multimodal approach. We first used a resting-state functional magnetic resonance imaging (fMRI) approach with a sample of 120 undergraduate students. Then, we unpacked the neuro-cognitive association between insular connectivity and cognitive performance during an Iowa gambling fMRI task. Lastly, an independent Open Southwest University Longitudinal Imaging Multimodal dataset was used to validate the results. Findings suggested that the dAI was predominantly connected to the prefrontal regions; the vAI was primarily connected to the AMG-ventral-striatum system; and the PI was mainly connected to the visceral-sensorimotor system. Moreover, cognitive scores were positively correlated with FC between dAI and the self-control process of ventrolateral prefrontal cortex and were negatively correlated with FC between vAI and the reward-seeking process of orbitofrontal cortex and subgenual anterior cingulate cortex. The findings highlight the roles of our theorized subinsular functionality in the overall operation of the neural cognitive systems.
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Corteza Cerebral , Sustancia Blanca , Humanos , Giro del Cíngulo , Imagen por Resonancia Magnética , Corteza Insular , Mapeo Encefálico/métodosRESUMEN
Online poker gambling (OPG) involves various executive control processes and emotion regulation. In this context, we hypothesized that online poker players, accustomed to handling virtual cards, would show high performance on computerized decision-making tasks such as the Iowa Gambling Task (IGT). Using press advertisements, we recruited a non-gambler group (NG; n = 20) and an OPG group (n = 22). All participants performed the IGT while their cerebral activity was recorded by electroencephalography. Compared with the OPG group, the NG group showed significantly better progression in the IGT in the last trials. Recording of brain activity revealed the appearance of a temporal map between 150 and 175 ms specific to the gain condition in both groups. A second map was observed at 215-295 ms specifically in the NG group, and the generators were identified in the occipital regions. This activity is indicative of a high level of visual awareness; thus, it reflects additional processing of visual information, which can be assumed to be induced by the lower exposure of the NGs to online card games. We hypothesize that the absence of this activity in the OPG group might be due to their online habituation to virtual environments.
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Juego de Azar , Humanos , Juego de Azar/psicología , Función Ejecutiva , Lóbulo Occipital , Toma de DecisionesRESUMEN
The present study investigated the extent to which financial risk-taking (FRT) perspectives and religiosity influenced an individual's performance on financial decision-making tasks under risk and/or uncertainty. It further investigated the potential to measure this interaction using electro-encephalogram (EEG) assessments through reward-related event-related potentials (P3 and FRN). EEG data were collected from 37 participants undergoing four decision-making tasks comprising the Balloon Analogue Risk Task (BART), Iowa Gambling Test (IGT), Mixed-Gamble Loss-Aversion Task (MGLAT), and MGLA-Success Task (MGLAST). The present study found that BART performance may be affected by an interaction of FRT perspectives and religiosity. The physiological effects of task feedback were also distinguished between religious and non-religious individuals objectively with EEG data. Overall, while religiosity and FRT may not significantly influence IGT and MGLA performance, and interact with BART in a complex way, physiological reaction towards feedback after BART performance appears to be strongly affected by religiosity and FRT perspectives.
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In patients with Parkinson's disease (PD), dopamine replacement therapy with dopamine D2/D3 receptor agonists induces impairments in decision-making, including pathological gambling. The neurobiological mechanisms underlying these adverse effects remain elusive. Here, in a mouse model of PD, we investigated the effects of the dopamine D3 receptor (D3R)-preferring agonist pramipexole (PPX) on decision-making. PD model mice were generated using a bilateral injection of the toxin 6-hydroxydopamine into the dorsolateral striatum. Subsequent treatment with PPX increased disadvantageous choices characterized by a high-risk/high-reward in the touchscreen-based Iowa Gambling Task. This effect was blocked by treatment with the selective D3R antagonist PG-01037. In model mice treated with PPX, the number of c-Fos-positive cells was increased in the external globus pallidus (GPe), indicating dysregulation of the indirect pathway in the corticothalamic-basal ganglia circuitry. In accordance, chemogenetic inhibition of the GPe restored normal c-Fos activation and rescued PPX-induced disadvantageous choices. These findings demonstrate that the hyperactivation of GPe neurons in the indirect pathway impairs decision-making in PD model mice. The results provide a candidate mechanism and therapeutic target for pathological gambling observed during D2/D3 receptor pharmacotherapy in PD patients.
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Toma de Decisiones , Modelos Animales de Enfermedad , Globo Pálido , Enfermedad de Parkinson , Pramipexol , Receptores de Dopamina D3 , Animales , Pramipexol/farmacología , Ratones , Enfermedad de Parkinson/tratamiento farmacológico , Enfermedad de Parkinson/metabolismo , Toma de Decisiones/efectos de los fármacos , Globo Pálido/metabolismo , Globo Pálido/efectos de los fármacos , Masculino , Receptores de Dopamina D3/metabolismo , Receptores de Dopamina D3/agonistas , Agonistas de Dopamina/farmacología , Benzotiazoles/farmacología , Ratones Endogámicos C57BL , Proteínas Proto-Oncogénicas c-fos/metabolismoRESUMEN
INTRODUCTION: Individuals with alcohol use disorder (AUD) have difficulties regulating alcohol consumption, despite adverse drinking-related consequences. This may be due to incapacity incorporating previous negative feedback from drinking, resulting in impaired decision-making. METHODS: We assessed whether decision-making is impaired in participants with AUD related to severity of AUD, indexed by severe negative drinking consequences using the Drinkers Inventory of Consequences (DrInC) and reward and punishment sensitivity with the Behavioural Inhibition System Behavioural Activation System (BIS BAS) scales. 36 treatment-seeking alcohol-dependent participants completed the Iowa gambling task (IGT) with skin conductance responses (SCRs) measured continuously as an index of somatic autonomic arousal to evaluate impaired expectancy of negative outcomes. RESULTS: Two-thirds of the sample showed behavioural impairment during the IGT, with greater AUD severity related to worse performance. BIS moderated IGT performance according to severity of AUD, with increased anticipatory SCRs for those with fewer reported DrInC severe consequences. Participants with more DrInC severe consequences showed IGT deficits and reduced SCRs regardless of BIS scores. BAS-Reward was associated with increased anticipatory SCRs to disadvantageous deck choices among those with lower AUD severity, while SCRs did not differ related to AUD severity for reward outcomes. DISCUSSION: Effective decision-making in the IGT and adaptive somatic responses were moderated by punishment sensitivity contingent on severity of AUD in these drinkers, with impairments in expectancy to negative outcomes from risky choices, including reduced somatic responses, resulting in poor decision-making processes that may help explain impaired drinking and worse drinking-related consequences.
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Alcoholismo , Juego de Azar , Humanos , Alcoholismo/complicaciones , Castigo , Respuesta Galvánica de la Piel , Recompensa , Toma de Decisiones/fisiología , Pruebas NeuropsicológicasRESUMEN
OBJECTIVE: To explore whether patients with chronic migraine and medication overuse headache (CM + MOH) present with decision-making deficit. BACKGROUND: Factors underlying MOH in patients with CM remain unclear. Whether the process of decision-making plays a role in MOH is still controversial. Decision-making varies in the degree of uncertainty: under ambiguity where the probability of outcome is unknown, and under risk where probabilities are known. METHODS: Decisions under ambiguity and risk were assessed with the Iowa Gambling Task and the Cambridge Gambling Task, respectively, whereas executive function was assessed by the Wisconsin Card Sorting Test. RESULTS: A total of 75 participants: 25 patients with CM + MOH, 25 with CM, and 25 age- and sex-similar healthy controls (HCs), completed this cross-sectional study. There was no significant difference in headache profiles except for more frequent analgesic use (mean ± SD: 23.5 ± 7.6 vs. 6.8 ± 3.4 days; p < 0.001) and higher Severity of Dependence Scores (median [25th-75th percentile]: 8 [5-11] vs. 1 [0-4]; p < 0.001) in patients with CM + MOH compared to CM. Total net score (mean ± SD) on the Iowa Gambling Task in patients with CM + MOH, CM, and HCs were - 8.1 ± 28.7, 10.9 ± 29.6, and 14.2 ± 28.8, respectively. There was a significant difference between the three groups (F(2, 72) = 4.28, p = 0.017), with patients with CM + MOH making significantly more disadvantageous decisions than patients with CM (p = 0.024) and HCs (p = 0.008), while the CM and HC groups did not differ (p = 0.690). By contrast, there was no significant difference between the groups in the Cambridge Gambling Task and the Wisconsin Card Sorting Test. Furthermore, performance on the Iowa Gambling Task was inversely correlated with analgesic consumption (r = -0.41, p = 0.003), suggesting that decision-making under ambiguity may be related to MOH. CONCLUSIONS: Our data suggest that patients with CM + MOH had impaired decisions under ambiguous, but not risky situations. This dissociation indicates disrupted emotional feedback processing rather than executive dysfunction, which may underlie the pathogenesis of MOH.
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Toma de Decisiones , Trastornos Migrañosos , Humanos , Asunción de Riesgos , Estudios Transversales , Uso Excesivo de Medicamentos Recetados , Pruebas NeuropsicológicasRESUMEN
It is not known why some novice gamblers eventually develop Gambling Disorder while most do not. This study tested predictions from two competing models of Gambling Disorder etiology: the Pathways Model of Problem and Pathological Gambling (Blaszczynski & Nower, 2002) and the Allostatic Model of addictions (Koob & Schulkin, 2019) applied to Gambling Disorder. Participants were drawn from introductory psychology courses and screened as non-gamblers (N = 91). They completed computerized versions of the Iowa Gambling Task (IGT-2), Wisconsin Sorting Task (WCST-64), and a Difficulties with Emotional Regulation Scale (DERS). Risk-taking tendencies were observed by having participants play a typical electronic slots game for up to 15 min. Higher betting on the slots game was correlated with the frequency of Deck A selections on the IGT-2 and lower total DERS scores. There were no significant correlations involving slots betting and the WCST-64. Greater risk-taking on the slots game was correlated with more frequent wins, partial losses that were disguised as wins, bonus game features, and the largest nominal amount won on a single spin. However, there were no significant correlations between betting behaviors and the 'payback percentage', defined as total winnings as a proportion of total wagers made throughout the session. Post-game ratings were positively correlated with frequency of reinforcing outcomes. These findings suggest that novice gamblers' likelihood of further gambling participation may be elevated by high sensitivity to immediate rewards and low difficulty self-regulating negative emotions. These findings are consistent with the Allostatic Model; they are not consistent with Pathways Model.
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Regulación Emocional , Juego de Azar , Humanos , Juego de Azar/psicología , RecompensaRESUMEN
PURPOSE: Phosphodiesterase 10A (PDE10A) is a dual substrate enzyme highly enriched in dopamine-receptive striatal medium spiny neurons, which are involved in psychiatric disorders such as alcohol use disorders (AUD). Although preclinical studies suggest a correlation of PDE10A mRNA expression in neuronal and behavioral responses to alcohol intake, little is known about the effects of alcohol exposure on in vivo PDE10A activity in relation to apparent risk factors for AUD such as decision-making and anxiety. METHODS: We performed a longitudinal [18F]JNJ42259152 microPET study to evaluate PDE10A changes over a 9-week intermittent access to alcohol model, including 6 weeks of alcohol exposure, 2 weeks of abstinence followed by 1 week relapse. Parametric PDE10A-binding potential (BPND) images were generated using a Logan reference tissue model with cerebellum as reference region and were analyzed using both a volume-of-interest and voxel-based approach. Moreover, individual decision-making and anxiety levels were assessed with the rat Iowa Gambling Task and open-field test over the IAE model. RESULTS: We observed an increased alcohol preference especially in those animals that exhibited poor initial decision-making. The first 2 weeks of alcohol exposure resulted in an increased striatal PDE10A binding (> 10%). Comparing PDE10A-binding potential after 2 versus 4 weeks of exposure showed a significant decreased PDE10A in the caudate-putamen and nucleus accumbens (pFWE-corrected < 0.05). This striatal PDE10A decrease was related to alcohol consumption and preference. Normalization of striatal PDE10A to initial levels was observed after 1 week of relapse, apart from the globus pallidus. CONCLUSION: This study shows that chronic voluntary alcohol consumption induces a reversible increased PDE10A enzymatic availability in the striatum, which is related to the amount of alcohol preference. Thus, PDE10A-mediated signaling plays an important role in modulating the reinforcing effects of alcohol, and the data suggest that PDE10A inhibition may have beneficial behavioral effects on alcohol intake.
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Alcoholismo , Tomografía de Emisión de Positrones , Consumo de Bebidas Alcohólicas/efectos adversos , Alcoholismo/diagnóstico por imagen , Alcoholismo/metabolismo , Animales , Encéfalo/diagnóstico por imagen , Encéfalo/metabolismo , Hidrolasas Diéster Fosfóricas/metabolismo , Tomografía de Emisión de Positrones/métodos , Pirazoles , Piridinas , RatasRESUMEN
OBJECTIVE: The effect of the frontal lobe on cognitive functions is a subject that has been studied frequently. However, cognitive impairments that can be seen in frontal lobe epilepsy are less addressed. In previous studies on decision-making disorders in patients with epilepsy, patients with temporal lobe epilepsy (TLE) were frequently studied, and it was reported that decision-making disorders could be encountered in this patient group. In this study, we aimed to compare the decision-making performance of patients with cryptogenic frontal lobe epilepsy (FLE) and TLE in ambiguous situations. METHODS: Twenty patients with TLE (mean age: 34.10⯱â¯11.71â¯years) and 20 patients with FLE (mean age: 32.25⯱â¯11.92â¯years) were enrolled in the study and their cognitive performance was compared with 20 healthy controls (mean age: 33.15⯱â¯13.66â¯years). Neuropsychological tests were performed on the participants for sleep, depression, anxiety, impulsivity, intelligence, attention, language functions, memory and learning, and frontal axis functions. Decision-making performance in ambiguous situations was studied using the Iowa Gambling Task (IGT). RESULTS: Iowa Gambling Task performances of patients with FLE and TLE were found to be worse than in healthy controls (pâ¯=â¯0.049). Although there was no statistically significant difference when the decision-making of patients with TLE and FLE was compared, it was observed that patients with FLE chose higher risk cards compared with those with TLE. The performances of the neuropsychological subgroup tests of patients with TLE and FLE in attention, language functions, memory and learning, and frontal axis functions were found to be significantly worse than in healthy subjects. CONCLUSION: Decision-making in patients with TLE and FLE in ambiguous situations is similarly impaired compared with healthy controls.
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Epilepsia del Lóbulo Frontal , Epilepsia del Lóbulo Temporal , Adulto , Cognición , Epilepsia del Lóbulo Frontal/psicología , Epilepsia del Lóbulo Temporal/complicaciones , Epilepsia del Lóbulo Temporal/psicología , Humanos , Persona de Mediana Edad , Pruebas Neuropsicológicas , Lóbulo Temporal , Adulto JovenRESUMEN
BACKGROUND: Chronic pain is a significant worldwide health problem. It has been reported that people with chronic pain experience decision-making impairments, but these findings have been based on conventional laboratory experiments to date. In such experiments, researchers have extensive control of conditions and can more precisely eliminate potential confounds. In contrast, there is much less known regarding how chronic pain affects decision-making captured via laboratory-in-the-field experiments. Although such settings can introduce more experimental uncertainty, collecting data in more ecologically valid contexts can better characterize the real-world impact of chronic pain. OBJECTIVE: We aim to quantify decision-making differences between individuals with chronic pain and healthy controls in a laboratory-in-the-field environment by taking advantage of internet technologies and social media. METHODS: A cross-sectional design with independent groups was used. A convenience sample of 45 participants was recruited through social media: 20 (44%) participants who self-reported living with chronic pain, and 25 (56%) people with no pain or who were living with pain for <6 months acting as controls. All participants completed a self-report questionnaire assessing their pain experiences and a neuropsychological task measuring their decision-making (ie, the Iowa Gambling Task) in their web browser at a time and location of their choice without supervision. RESULTS: Standard behavioral analysis revealed no differences in learning strategies between the 2 groups, although qualitative differences could be observed in the learning curves. However, computational modeling revealed that individuals with chronic pain were quicker to update their behavior than healthy controls, which reflected their increased learning rate (95% highest-posterior-density interval [HDI] 0.66-0.99) when fitted to the Values-Plus-Perseverance model. This result was further validated and extended on the Outcome-Representation Learning model as higher differences (95% HDI 0.16-0.47) between the reward and punishment learning rates were observed when fitted to this model, indicating that individuals with chronic pain were more sensitive to rewards. It was also found that they were less persistent in their choices during the Iowa Gambling Task compared with controls, a fact reflected by their decreased outcome perseverance (95% HDI -4.38 to -0.21) when fitted using the Outcome-Representation Learning model. Moreover, correlation analysis revealed that the estimated parameters had predictive value for the self-reported pain experiences, suggesting that the altered cognitive parameters could be potential candidates for inclusion in chronic pain assessments. CONCLUSIONS: We found that individuals with chronic pain were more driven by rewards and less consistent when making decisions in our laboratory-in-the-field experiment. In this case study, it was demonstrated that, compared with standard statistical summaries of behavioral performance, computational approaches offered superior ability to resolve, understand, and explain the differences in decision-making behavior in the context of chronic pain outside the laboratory.
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Dolor Crónico , Juego de Azar , Estudios Transversales , Toma de Decisiones , Humanos , Internet , Pruebas Neuropsicológicas , RecompensaRESUMEN
In Parkinson's disease (PD) impairments in decision making can occur, in particular because of the tendency toward risky and rewarding options. The Iowa Gambling Task has been widely used to investigate decision processes involving these options. The task assesses the ability to manage risk and to learn from feedback. The present paper aims at critically examining those studies in which this task has been administered to PD patients, in order to understand possible anomalies in patients' decision processes and which variables are responsible for that. A meta-analysis has been conducted as well. Features of the task, sociodemographic and clinical aspects (including daily drugs intake), cognitive conditions and emotional disorders of the patients have been taken into account. Neural correlates of decision-making competences were considered. It emerged that PD patients show a trend of preference toward risky choices, probably due to an impairment in anticipating the unrewarding consequences or to an insensitiveness to punishment. The possible role played by dopamine medications in decision making under uncertain conditions, affecting basal ganglia and structures involved in the limbic loop, was discussed. Attention has been focused on some aspects that need to be investigated in further research, in order to delve into this issue and promote patients' quality of life.
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Juego de Azar , Enfermedad de Parkinson , Toma de Decisiones , Humanos , Pruebas Neuropsicológicas , Enfermedad de Parkinson/tratamiento farmacológico , Calidad de VidaRESUMEN
Our study aimed to understand the impact of cocaine dependence on high-risk decision-making abilities in individuals with the human immunodeficiency virus (HIV) and individuals with cocaine dependence. We recruited 99 participants (27 HIV/Cocaine, 20 HIV Only, 26 Cocaine Only, and 26 Healthy Controls). The Iowa Gambling Task (IGT) was applied to assess decision-making abilities. Independent and interactive effects of HIV status and cocaine dependence were examined using 2 × 2 factorial ANCOVA with premorbid IQ (WRAT-4: WR) as the covariate. We found cocaine dependence had a significant adverse effect on overall IGT performance (p = 0.015). We also found individuals who were HIV-positive tended to have less total money at the end of the game than individuals who were HIV-negative (p = 0.032), suggesting individuals living with HIV had less focus on long-term gains and more focus on short-term gains. Our findings highlight the significant impact of cocaine dependence on decision-making abilities and the difficulty individuals with HIV have in adequately weighing the cost and benefits of their decisions and making appropriate changes for the future.
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Trastornos Relacionados con Cocaína/psicología , Cocaína/efectos adversos , Toma de Decisiones , Infecciones por VIH/psicología , Adulto , Recuento de Linfocito CD4 , Estudios de Casos y Controles , Trastornos Relacionados con Cocaína/complicaciones , Trastornos Relacionados con Cocaína/fisiopatología , Trastornos Relacionados con Cocaína/virología , Femenino , Juegos Experimentales , Infecciones por VIH/complicaciones , Infecciones por VIH/fisiopatología , Infecciones por VIH/virología , Humanos , Masculino , Persona de Mediana Edad , Pruebas Neuropsicológicas , Carga ViralRESUMEN
OBJECTIVE: Numerous studies have identified impaired decision making (DM) under both ambiguity and risk in adult patients with schizophrenia. However, the assessment of DM in patients with adolescent-onset schizophrenia (AOS) has been challenging as a result of the instability and heterogeneity of manifestations. The Iowa Gambling Task (IGT) and Game of Dice Task (GDT), which are frequently used to evaluate DM respectively under ambiguity and risk, are sensitive to adolescents and neuropsychiatric patients. Our research intended to examine the performance of DM in a relatively large sample of patients with AOS using the above-mentioned two tasks. We also aimed to take a closer look at the relationship between DM and symptom severity of schizophrenia. METHODS: We compared the performance of DM in 71 patients with AOS and 53 well-matched healthy controls using IGT for DM under ambiguity and GDT for DM under risk through net scores, total scores and feedback ration. Neuropsychological tests were conducted in all participants. Clinical symptoms were evaluated by using Positive and Negative Syndrome Scale (PANSS) in 71 patients with AOS. Pearson's correlation revealed the relationship among total score of DM and clinical and neuropsychological data. RESULTS: Compared to healthy controls, patients with AOS failed to show learning effect and had a significant difference on the 5th block in IGT and conducted more disadvantageous choices as well as exhibited worse negative feedback rate in GDT. Apart from DM impairment under risk, diminished DM abilities under ambiguity were found related to poor executive function in AOS in the present study. CONCLUSIONS: Our findings unveiled the abnormal pattern of DM in AOS, mainly reflected under the risky condition, extending the knowledge on the performance of DM under ambiguity and risk in AOS. Inefficient DM under risk may account for the lagging impulse control and the combined effects of developmental disease. In addition, our study demonstrated that the performance on IGT was related to executive function in AOS.
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Juego de Azar , Esquizofrenia , Adolescente , Adulto , Toma de Decisiones , Humanos , Pruebas Neuropsicológicas , Asunción de Riesgos , Esquizofrenia/diagnósticoRESUMEN
OBJECTIVE: Patients with major depressive disorder tend to exhibit poorer decision-making capacity than the general population, but neurobiological evidence is lacking. Functional near-infrared spectroscopy monitors changes in oxy-haemoglobin concentration in the cerebral cortex. It may provide an objective assessment of neurophysiological responses during decision-making processes. Thus, this study investigated the effect of major depressive disorder diagnosis and severity on prefrontal cortex activity during the Iowa gambling task. METHODS: Right-handed healthy controls (n = 25) and patients with major depressive disorder (n = 25) were matched for age, gender, ethnicity and years of education in this cross-sectional study. Functional near-infrared spectroscopy signals and the responses made during a computerised Iowa gambling task were recorded. In addition, demographics, clinical history and symptom severity were noted. RESULTS: Compared to healthy controls, patients with major depressive disorder had reduced haemodynamic response in several cortical regions of the frontal lobe (Hedge's g range from 0.71 to 1.52; p values range from ⩽0.001 to 0.041). Among patients, mean oxy-haemoglobin declined with major depressive disorder severity in the right orbitofrontal cortex (Pearson's r = -0.423; p = 0.024). CONCLUSION: Haemodynamic dysfunction of the prefrontal cortex during decision-making processes is associated with major depressive disorder diagnosis and severity. These neurophysiological alterations may have a role in the decision-making capacity of patients with major depressive disorder.
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Trastorno Depresivo Mayor , Estudios Transversales , Toma de Decisiones , Trastorno Depresivo Mayor/diagnóstico por imagen , Lóbulo Frontal , Humanos , Pruebas Neuropsicológicas , Corteza Prefrontal/diagnóstico por imagen , Espectroscopía Infrarroja CortaRESUMEN
Self-compassionate individuals treat themselves kindly when undergoing stress. The present study examined self-compassion's relationship to risky decision-making on a gambling task by 240 problem and non-problem gamblers who were tested in a casino setting. Multi-level modeling analyses showed that participants expressed differential rates of learning to avoid risks on the gambling task, depending on their status as potential problem/non-problem gamblers and their level of self-compassion. Among potential problem gamblers, participants higher in self-compassion showed significant gains in performance over decision-making trials, which approximated those of non-problem gamblers and adults without impairments in the population. In contrast, potential problem gamblers lower in self-compassion showed chance levels of performance, which approximated those of adults with impairments. In some circumstances, self-compassion can disinhibit individuals from taking greater risks. For potential problem gamblers in a casino setting, however, the benefits of self-compassion as a means to reinforce self-control appear to outweigh the risks.
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Toma de Decisiones/fisiología , Empatía , Juego de Azar/psicología , Autoimagen , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Conducta Adictiva/epidemiología , Conducta Adictiva/psicología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Asunción de Riesgos , Adulto JovenRESUMEN
In several studies, individuals who reported to frequently multitask with different media displayed reduced cognitive performance, for example in fluid intelligence and executive functioning. These cognitive functions are relevant for making advantageous decisions under both objective risk (requiring reflection and strategical planning) and ambiguous risk (requiring learning from feedback). Thus, compared to low media multitaskers (LMMs), high media multitaskers (HMMs) may perform worse in both types of decision situations. The current study investigated HMMs and LMMs in a laboratory setting with the Game of Dice Task (GDT; objective risk), the Iowa Gambling Task (IGT; ambiguous risk), various tests quantifying cognitive functions (logical reasoning, working memory, information processing, general executive functions), and self-report measures of impulsivity, media multitasking expectancies, and problematic Internet use. From 182 participants, 25 HMMs and 19 LMMs were identified using the Media Multitasking Index. Results show that HMMs compared to LMMs performed weaker on the IGT but not on the GDT. Furthermore, HMMs had slightly decreased performance in tests of logical reasoning and working memory capacity. HMMs tended to increased information processing speed but this difference was not significant. Furthermore, HMMs have more positive expectancies regarding media multitasking and reported higher tendencies toward problematic Internet use. HMMs and LMMs did not differ significantly with respect to impulsivity and executive functions. The results give a first hint that HMMs may have difficulties in decision-making under ambiguous but not under objective risk. HMMs may be more prone to errors in tasks that require feedback processing. However, HMMs appear not to be impaired in aspects of long-term strategic decision-making.