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https://www.readbyqxmd.com/read/28098430/behavioral-and-electrophysiological-alterations-for-reinforcement-learning-in-manic-and-euthymic-patients-with-bipolar-disorder
#1
Vin Ryu, Ra Yeon Ha, Su Jin Lee, Kyooseob Ha, Hyun-Sang Cho
AIMS: Bipolar disorder is characterized by behavioral changes such as risk-taking and increasing goal-directed activities, which may result from altered reward processing. Patients with bipolar disorder show impaired reward learning in situations that require the integration of reinforced feedback over time. In this study, we examined the behavioral and electrophysiological characteristics of reward learning in manic and euthymic patients with bipolar disorder using a probabilistic reward task...
January 18, 2017: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/28093302/aging-and-risky-decision-making-new-erp-evidence-from-the-iowa-gambling-task
#2
Elisa Di Rosa, Daniela Mapelli, Giorgio Arcara, Piero Amodio, Stefano Tamburin, Sami Schiff
Several pieces of evidence have highlighted the presence of an age-related decline in risky decision-making (DM), but the reason of this decline is still unclear. The aim of the present study was to investigate the neural correlates of feedback processing in risky DM. Twenty-one younger (age <50 years) and 15 older (age >50 years) adults were tested with the Iowa Gambling Task (IGT) during Event Related Potentials (ERP) recording. The analysis was focused on the feedback-related negativity (FRN) and P3, two ERP components that represent different stages of feedback processing...
January 13, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28017638/the-influence-of-self-construal-type-on-outcome-evaluation-evidence-from-event-related-potentials
#3
Xiangru Zhu, Haiyan Wu, Suyong Yang, Ruolei Gu
Recent studies have revealed a close relationship between the self and reward networks. One of our previous studies has found that outcome evaluation (including the processing of reward and punishment) is modulated by self-reflection. A question remaining unclear is how different types of self-construal influence outcome evaluation. Self-construal refers to the way in which people perceive themselves to be linked (or not) with other people. Two subtypes of self-construal have been identified: independent self and interdependent self...
February 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/27935729/abnormal-neural-responses-to-feedback-in-depressed-adolescents
#4
Christian A Webb, Randy P Auerbach, Erin Bondy, Colin H Stanton, Dan Foti, Diego A Pizzagalli
Depression rates surge in adolescence, particularly among females. Recent findings suggest that depressed adolescents are characterized by hypersensitivity to negative outcomes and blunted responsiveness to rewards. However, our understanding of the pathophysiology and time course of these abnormalities remains limited. Due to their high temporal resolution, event-related potentials (ERPs) provide an ideal probe to investigate these processes. In the present study, healthy (n = 25) and depressed (n = 26) female adolescents (13-18 years) completed a gambling task during 128-channel ERP recording...
January 2017: Journal of Abnormal Psychology
https://www.readbyqxmd.com/read/27888527/electrophysiological-correlates-of-decision-making-impairment-in-multiple-sclerosis
#5
Elisa Azcárraga-Guirola, Yaneth Rodríguez-Agudelo, Julia Velázquez-Cardoso, Yamel Rito-García, Rodolfo Solís-Vivanco
Although previous studies have shown that patients with multiple sclerosis (MS) may exhibit impaired decision making (DM), the specific neuro-cognitive processes that underlie this deficiency remain unknown. Inefficient DM may occur due to poor option assessment or a deficit in the evaluation of choice outcomes. This study uses, for the first time, the event-related potential (ERP) technique to analyze these DM subprocesses in patients with MS. Sixteen MS patients and nineteen control subjects performed a DM task based on the Iowa Gambling Task while a digital EEG was recorded...
November 5, 2016: European Journal of Neuroscience
https://www.readbyqxmd.com/read/27887980/the-interaction-between-state-and-dispositional-emotions-in-decision-making-an-erp-study
#6
Yingying Wang, Ruolei Gu, Yue-Jia Luo, Chenglin Zhou
In this study, to investigate the influence of incidental emotions on decision making in high-anxious individuals, participants were required to perform a monetary gambling task. Behavioral and electroencephalography responses were recorded to explore the stages of option assessment and outcome evaluation during decision making, respectively. Incidental emotions were elicited by facial expression pictures presented on the background, which included four conditions (control, neutral, fearful, and happy). Results showed smaller feedback-related negativity (FRN) amplitudes in high-anxious participants than low-anxious participants in the control, neutral, and fearful conditions, but not in the happy condition, for small outcomes...
November 22, 2016: Biological Psychology
https://www.readbyqxmd.com/read/27789252/processing-expected-and-unexpected-uncertainty-is-modulated-by-fearless-dominance-personality-traits-an-exploratory-erp-study-on-feedback-processing
#7
Lydia Kogler, Uta Sailer, Birgit Derntl, Daniela M Pfabigan
Expectancy and certainty regarding an outcome are important factors during performance monitoring. However, the separate contributions of expected and unexpected uncertainty on different measures of performance monitoring, including feedback-related negativity (FRN) and P300 components, are not well established. The current study investigated their relationship to fearless-dominance, a personality construct described by high social potency and low anxiety. Accurately predicting environmental outcomes in certain and uncertain situations might be a prerequisite of social potency, therefore it may be associated with increased performance monitoring and its ERP correlates...
January 1, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/27781362/spared-internal-but-impaired-external-reward-prediction-error-signals-in-major-depressive-disorder-during-reinforcement-learning
#8
Jasmina Bakic, Gilles Pourtois, Marieke Jepma, Romain Duprat, Rudi De Raedt, Chris Baeken
BACKGROUND: Major depressive disorder (MDD) creates debilitating effects on a wide range of cognitive functions, including reinforcement learning (RL). In this study, we sought to assess whether reward processing as such, or alternatively the complex interplay between motivation and reward might potentially account for the abnormal reward-based learning in MDD. METHODS: A total of 35 treatment resistant MDD patients and 44 age matched healthy controls (HCs) performed a standard probabilistic learning task...
October 26, 2016: Depression and Anxiety
https://www.readbyqxmd.com/read/27781281/feedback-negativity-and-decision-making-behavior-in-the-balloon-analogue-risk-task-bart-in-adolescents-is-modulated-by-peer-presence
#9
Luisa Kessler, Johannes Hewig, Karina Weichold, Rainer K Silbereisen, Wolfgang H R Miltner
Adolescent risk taking is strongly influenced by peer presence. The aim of the present study was to investigate the effect of peer presence on the ERP after negative and positive feedback in the time range of the feedback-related negativity (FRN). Eighteen male adolescents completed a version of the Balloon Analogue Risk Task (BART) under two conditions: playing alone and while observed by a peer. We recorded the ERPs after success or failure feedback and analyzed risk-taking behavior under both conditions...
October 26, 2016: Psychophysiology
https://www.readbyqxmd.com/read/27713069/a-neurophysiological-examination-of-quality-of-learning-in-a-feedback-based-learning-task
#10
Yael Arbel, Hao Wu
The efficiency with which one processes external feedback contributes to the speed and quality of one's learning. Previous findings that the feedback related negativity (FRN) event related potential (ERP) is modulated by learning outcomes suggested that this ERP reflects the extent to which feedback is used by the learner to improve performance. To further test this suggestion, we measured whether the FRN and the fronto-central positivity (FCP) that follows it are modulated by learning slopes, and as a function of individual differences in learning outcomes...
December 2016: Neuropsychologia
https://www.readbyqxmd.com/read/27694920/neural-activities-underlying-the-feedback-express-salience-prediction-errors-for-appetitive-and-aversive-stimuli
#11
Yan Gu, Xueping Hu, Weigang Pan, Chun Yang, Lijun Wang, Yiyuan Li, Antao Chen
Feedback information is essential for us to adapt appropriately to the environment. The feedback-related negativity (FRN), a frontocentral negative deflection after the delivery of feedback, has been found to be larger for outcomes that are worse than expected, and it reflects a reward prediction error derived from the midbrain dopaminergic projections to the anterior cingulate cortex (ACC), as stated in reinforcement learning theory. In contrast, the prediction of response-outcome (PRO) model claims that the neural activity in the mediofrontal cortex (mPFC), especially the ACC, is sensitive to the violation of expectancy, irrespective of the valence of feedback...
October 3, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27658703/behavioural-and-neural-modulation-of-win-stay-but-not-lose-shift-strategies-as-a-function-of-outcome-value-in-rock-paper-scissors
#12
Lewis Forder, Benjamin James Dyson
Competitive environments in which individuals compete for mutually-exclusive outcomes require rational decision making in order to maximize gains but often result in poor quality heuristics. Reasons for the greater reliance on lose-shift relative to win-stay behaviour shown in previous studies were explored using the game of Rock, Paper, Scissors and by manipulating the value of winning and losing. Decision-making following a loss was characterized as relatively fast and relatively inflexible both in terms of the failure to modulate the magnitude of lose-shift strategy and the lack of significant neural modulation...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27629367/associations-between-electrophysiological-evidence-of-reward-and-punishment-based-learning-and-psychotic-experiences-and-social-anhedonia-in-at-risk-groups
#13
Nicole R Karcher, Bruce D Bartholow, Elizabeth A Martin, John G Kerns
Both positive psychotic symptoms and anhedonia are associated with striatal functioning, but few studies have linked risk for psychotic disorders to a neural measure evoked during a striatal dopamine-related reward and punishment-based learning task, such as a reversal learning task (RLT; Cools et al, 2009). The feedback-related negativity (FRN) is a neural response that in part reflects striatal dopamine functioning. We recorded EEG during the RLT in three groups: (a) people with psychotic experiences (PE; n=20) at increased risk for psychotic disorders; (b) people with extremely elevated social anhedonia (SocAnh; n=22); and (c) controls (n=20)...
October 12, 2016: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27577720/adaptive-behaviour-and-feedback-processing-integrate-experience-and-instruction-in-reinforcement-learning
#14
Anne-Marike Schiffer, Kayla Siletti, Florian Waszak, Nick Yeung
In any non-deterministic environment, unexpected events can indicate true changes in the world (and require behavioural adaptation) or reflect chance occurrence (and must be discounted). Adaptive behaviour requires distinguishing these possibilities. We investigated how humans achieve this by integrating high-level information from instruction and experience. In a series of EEG experiments, instructions modulated the perceived informativeness of feedback: Participants performed a novel probabilistic reinforcement learning task, receiving instructions about reliability of feedback or volatility of the environment...
August 27, 2016: NeuroImage
https://www.readbyqxmd.com/read/27566260/why-don-t-you-like-me-midfrontal-theta-power-in-response-to-unexpected-peer-rejection-feedback
#15
M J W Van der Molen, L M S Dekkers, P M Westenberg, F M Van der Veen, M W van der Molen
Social connectedness theory posits that the brain processes social rejection as a threat to survival. Recent electrophysiological evidence suggests that midfrontal theta (4-8Hz) oscillations in the EEG provide a window on the processing of social rejection. Here we examined midfrontal theta dynamics (power and inter-trial phase synchrony) during the processing of social evaluative feedback. We employed the Social Judgment paradigm in which 56 undergraduate women (mean age = 19.67 years) were asked to communicate their expectancies about being liked vs...
August 23, 2016: NeuroImage
https://www.readbyqxmd.com/read/27565454/expectancy-affects-the-feedback-related-negativity-frn-for-delayed-feedback-in-probabilistic-learning
#16
Benjamin Weismüller, Christian Bellebaum
Learning from feedback is a prerequisite for adapting to the environment. Prediction error signals coded by midbrain dopamine (DA) neurons are projected to the basal ganglia and anterior cingulate cortex (ACC). It has been suggested that neuronal activity shifts away from the DA system when feedback is delayed. The feedback-related negativity (FRN), an ERP that is generated in the ACC and has been shown to be sensitive to feedback valence and prediction error magnitude, was found to be reduced for delayed feedback...
November 2016: Psychophysiology
https://www.readbyqxmd.com/read/27549133/deliberate-or-unintended-intentions-modulate-empathic-responses-to-others-economic-payoffs-in-social-interactions
#17
Qingguo Ma, Liang Meng, Qiang Shen
Previous studies examining empathy have revealed the neural substrates of how the physical pain of others is represented in the human brain. However, little is known about the empathic modulation of behavioral and neural responses to others' economic payoffs, especially in the social context. In the present study, we engaged participants in a revised Dictator Game as observers who observe the powerless players receiving varied offers proposed by the dominant players, establishing the link between empathy and fairness perception...
August 23, 2016: Social Neuroscience
https://www.readbyqxmd.com/read/27513200/temporal-prediction-restores-the-evaluative-processing-of-delayed-action-feedback-an-electrophysiological-study
#18
Kenta Kimura, Motohiro Kimura
The evaluative processing of the valence of action feedback is reflected by an event-related brain potential component called feedback-related negativity (FRN) or reward positivity (RewP). Recent studies have shown that FRN/RewP is markedly reduced when the action-feedback interval is long (e.g. 6000 ms), indicating that an increase in the action-feedback interval can undermine the evaluative processing of the valence of action feedback. The aim of the present study was to investigate whether or not such undermined evaluative processing of delayed action feedback could be restored by improving the accuracy of the prediction in terms of the timing of action feedback...
September 28, 2016: Neuroreport
https://www.readbyqxmd.com/read/27479484/conceptual-knowledge-influences-decision-making-differently-in-individuals-with-high-or-low-cognitive-flexibility-an-erp-study
#19
Xiaofei Dong, Xiumin Du, Bing Qi
OBJECTIVE: Studies using the Iowa Gambling Task (IGT) have distinguished between good and bad decision makers and have provided an explanation for deficits in decision making. Previous studies have demonstrated a link between Wisconsin Card Sorting Test (WCST) performance and IGT performance, but the results were not consistent and failed to explain why WCST performance can predict IGT performance. The present study aimed to demonstrate that WCST performance can predict IGT performance and to identify the cognitive component of the WCST that affects IGT performance using event-related potentials (ERPs)...
2016: PloS One
https://www.readbyqxmd.com/read/27457038/representing-the-consequences-of-our-actions-trial-by-trial-complex-and-flexible-encoding-of-feedback-valence-and-magnitude
#20
Isabel Padrón, José Fernández-Rey, Carlos Acuña, Jose L Pardo-Vazquez
In the last decades it has been shown that two components of the event-related potentials (ERPs), the feedback-related negativity (FRN) and the P300, reflect the evaluation of the outcomes of a given course of action. Within the reinforcement learning theory, the prevailing interpretation of the relationship between FRN and P300 is the classical "independent coding model". This model proposes that the FRN is only sensitive to feedback valence whereas the P300 is only sensitive to feedback magnitude. However, these predictions have recently been challenged and the question remains unsolved...
October 1, 2016: Neuroscience
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