The Role of Representation and Working Memory in Diagrammatic Reasoning and Decision Making

2002 ◽  
pp. 207-221
Author(s):  
Jozsef A. Toth ◽  
C. Michael Lewis
Keyword(s):  
Decision Making ◽  
Working Memory ◽  
Diagrammatic Reasoning

Age differences in decision making under known risk: The role of working memory and impulsivity.

2021 ◽  
Vol 57 (2) ◽  
pp. 241-252
Author(s):  
Jutta Kray ◽  
Barbara K. Kreis ◽  
Corinna Lorenz
Keyword(s):  
Decision Making ◽  
Working Memory ◽  
Age Differences

scholarly journals Recent advances in understanding the role of the basal ganglia

F1000Research ◽  
2019 ◽  
Vol 8 ◽  
pp. 122 ◽  
Author(s):  
Kristina Simonyan
Keyword(s):  
Decision Making ◽  
Working Memory ◽  
Basal Ganglia ◽  
Procedural Learning ◽  
Voluntary Movements ◽  
Subcortical Structure ◽  
Functional Importance ◽  
Motor Behaviors ◽  
Simultaneous Inhibition

The basal ganglia are a complex subcortical structure that is principally involved in the selection and implementation of purposeful actions in response to external and internal cues. The basal ganglia set the pattern for facilitation of voluntary movements and simultaneous inhibition of competing or interfering movements. In addition, the basal ganglia are involved in the control of a wide variety of non-motor behaviors, spanning emotions, language, decision making, procedural learning, and working memory. This review presents a comparative overview of classic and contemporary models of basal ganglia organization and functional importance, including their increased integration with cortical and cerebellar structures.

scholarly journals Cool and hot executive functions at 5 years old as predictors of physical and relational aggression between 5 and 6 years old

2018 ◽  
Vol 43 (2) ◽  
pp. 157-165
Author(s):  
Sarah E. O’Toole ◽  
Stella Tsermentseli ◽  
Sajid Humayun ◽  
Claire P. Monks
Keyword(s):  
Decision Making ◽  
Working Memory ◽  
Early Childhood ◽  
Executive Function ◽  
Relational Aggression ◽  
Inhibitory Control ◽  
Delay Of Gratification ◽  
Typically Developing ◽  
Typically Developing Children

To study the role of executive function (EF) in the early development of aggression, the role of cool and hot EF skills at 5 years old, in the development of physical and relational aggression between 5 and 6 years old, was explored. Typically developing children ( N = 80) completed tasks assessing their cool (inhibition, working memory, planning) and hot EF (affective decision making, delay of gratification) skills at 5 years old. Longitudinal data were collected from teachers that rated children’s aggression when they were 5, 5.5, and 6 years old. Inhibition at 5 years old predicted changes in physical and relational aggression between 5 and 6 years old. Early cool EF, but not hot EF, may therefore be associated with aggression and inhibitory control specifically with changes in aggression during early childhood.

On the role of dopamine replacement therapy in decision-making, working memory, and reward in Parkinson’s disease: Does the therapy-dose matter?

2009 ◽  
Vol 71 (2) ◽  
pp. 84-91 ◽  
Author(s):  
Diana Maria Elena Torta ◽  
Lorys Castelli ◽  
Maurizio Zibetti ◽  
Leonardo Lopiano ◽  
Giuliano Geminiani
Keyword(s):  
Parkinson’S Disease ◽  
Decision Making ◽  
Working Memory ◽  
Parkinson's Disease ◽  
Replacement Therapy ◽  
Dopamine Replacement Therapy

scholarly journals Deficits in decision-making induced by parietal cortex inactivation are compensated at two time scales

2021 ◽  
Author(s):  
Danique Jeurissen ◽  
S Shushruth ◽  
Yasmine El-Shamayleh ◽  
Gregory D Horwitz ◽  
Michael N Shadlen
Keyword(s):  
Decision Making ◽  
Working Memory ◽  
Time Scales ◽  
Brain Function ◽  
Rhesus Monkeys ◽  
Experimental Session ◽  
Cortical Circuits ◽  
Lateral Intraparietal Area ◽  
Over Time

AbstractPerceptual decisions arise through the transformation of samples of evidence into a commitment to a proposition or plan of action. Such transformation is thought to involve cortical circuits capable of computation over time scales associated with working memory, attention, and planning. Neurons in the lateral intraparietal area (LIP) are thought to play a role in all of these functions, and much of what is known about the neurobiology of decision making has been influenced by studies of LIP and its network of cortical and subcortical connections. However a causal role of neurons in LIP remains controversial. We used pharmacological and chemogenetic methods to inactivate LIP in one hemisphere of four rhesus monkeys. Inactivation produced clear biases in decisions, but the effects dissipated despite the persistence of neural inactivation, implying compensation by other unaffected areas. Compensation occurs on a rapid times scale, within an experimental session, and more gradually, across sessions. The findings resolve disparate studies and inform interpretation of focal perturbations of brain function.

scholarly journals Role of Cortisol and Testosterone in Risky Decision-Making: Deciphering Male Decision-Making in the Iowa Gambling Task

2021 ◽  
Vol 15 ◽  
Author(s):  
Varsha Singh
Keyword(s):  
Decision Making ◽  
Working Memory ◽  
Iowa Gambling Task ◽  
Stress Hormones ◽  
Hierarchical Regression ◽  
Gambling Task ◽  
Risky Decision ◽  
Cognitive Benefits

Despite the widely observed high risk-taking behaviors in males, studies using the Iowa gambling task (IGT) have suggested that males choose safe long-term rewards over risky short-term rewards. The role of sex and stress hormones in male decision-making is examined in the initial uncertainty and the latter risk phase of the IGT. The task was tested at peak hormone activity, with breath counting to facilitate cortisol regulation and its cognitive benefits. Results from IGT decision-making before and after counting with saliva samples from two all-male groups (breath vs. number counting) indicated that cortisol declined independent of counting. IGT decision-making showed phase-specific malleability: alteration in the uncertainty phase and stability in the risk phase. Working memory showed alteration, whereas inhibition task performance remained stable, potentially aligning with the phase-specific demands of working memory and inhibition. The results of hierarchical regression for the uncertainty and risk trials indicated that testosterone improved the model fit, cortisol was detrimental for decision-making in uncertainty, and decision-making in the risk trials was benefitted by testosterone. Cortisol regulation accentuated hormones’ phase-specific effects on decision-making. Aligned with the dual-hormone hypothesis, sex, and stress hormones might jointly regulate male long-term decision-making in the IGT.

Working Memory Involvement in Emotion-Based Processes Underlying Choosing Advantageously

2006 ◽  
Vol 53 (3) ◽  
pp. 191-197 ◽  
Author(s):  
Anna Pecchinenda ◽  
Michael Dretsch ◽  
Paul Chapman
Keyword(s):  
Decision Making ◽  
Working Memory ◽  
Iowa Gambling Task ◽  
Memory Load ◽  
Gambling Task ◽  
Working Memory Load ◽  
Memory Functions ◽  
Normal Performance

The Iowa Gambling Task (IGT) is widely used to assess decision making under conditions of uncertainty in clinical as well as in nonclinical populations. However, there is still debate as to whether normal performance at this task relies on implicit, emotion-based processes that are independent of working memory. To clarify the role of working memory on normal performance on the IGT, participants performed the task under low or high working memory load. We used a modified version of the original task, in which the position of the four decks was randomized between trials. Results showed that only participants performing under low memory load significantly chose more advantageously halfway through the task. In addition, when comparing the number of cards chosen from the two decks with frequent losses, one advantageous and one disadvantageous, only participants performing under low memory load chose more cards from the advantageous deck. The present findings indicate that the processes underlying optimal advantageous performance on the IGT rely on working memory functions.

scholarly journals LSD acutely impairs working memory, executive functions, and cognitive flexibility, but not risk-based decision-making

2019 ◽  
Vol 50 (13) ◽  
pp. 2255-2264 ◽  
Author(s):  
Thomas Pokorny ◽  
Patricia Duerler ◽  
Erich Seifritz ◽  
Franz X. Vollenweider ◽  
Katrin H. Preller
Keyword(s):  
Decision Making ◽  
Working Memory ◽  
Executive Functions ◽  
Cognitive Flexibility ◽  
Spatial Working Memory ◽  
Neuropsychological Test ◽  
Memory Task ◽  
Double Blind ◽  
Receptor System

AbstractBackgroundPsychiatric and neurodegenerative illnesses are characterized by cognitive impairments, in particular deficits in working memory, decision-making, and executive functions including cognitive flexibility. However, the neuropharmacology of these cognitive functions is poorly understood. The serotonin (5-HT) 2A receptor might be a promising candidate for the modulation of cognitive processes. However, pharmacological studies investigating the role of this receptor system in humans are rare. Recent evidence demonstrates that the effects of Lysergic acid diethylamide (LSD) are mediated via agonistic action at the 5-HT2A receptor. Yet, the effects of LSD on specific cognitive domains using standardized neuropsychological test have not been studied.MethodsWe examined the acute effects of LSD (100 µg) alone and in combination with the 5-HT2A antagonist ketanserin (40 mg) on cognition, employing a double-blind, randomized, placebo-controlled, within-subject design in 25 healthy participants. Executive functions, cognitive flexibility, spatial working memory, and risk-based decision-making were examined by the Intra/Extra-Dimensional shift task (IED), Spatial Working Memory task (SWM), and Cambridge Gambling Task (CGT) of the Cambridge Neuropsychological Test Automated Battery.ResultsCompared to placebo, LSD significantly impaired executive functions, cognitive flexibility, and working memory on the IED and SWM, but did not influence the quality of decision-making and risk taking on the CGT. Pretreatment with the 5-HT2A antagonist ketanserin normalized all LSD-induced cognitive deficits.ConclusionsThe present findings highlight the role of the 5-HT2A receptor system in executive functions and working memory and suggest that specific 5-HT2A antagonists may be relevant for improving cognitive dysfunctions in psychiatric disorders.

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