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Related Concept Videos

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Decision-making is a fundamental cognitive process that involves evaluating alternatives and selecting among them. This process can range from simple choices, such as deciding what to wear, to complex decisions, like choosing a major in college or a career path. The complexity of the decision often dictates the approach we use, which can be broadly categorized into two types: automatic and controlled decision-making.
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The human brain processes information for decision-making using one of two routes: an intuitive system and a rational system (Epstein, 1994; popularized by Kahneman, 2011 as System 1 and System 2, respectively). The intuitive system is quick, impulsive, and operates with minimal effort, relying on emotions or habits to provide cues for what to do next, while the rational system is logical, analytical, deliberate, and methodical. Research in neuropsychology suggests that the...
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Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
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The process of hypothesis testing based on the traditional method includes calculating the critical value, testing the value of the test statistic using the sample data, and interpreting these values.
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Organization of the Brain01:30

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The brain is an integral component of the nervous system and serves as the center for processing sensory inputs, making decisions, and directing bodily actions. This complex organ is organized into three primary sections: the hindbrain, midbrain, and forebrain, each responsible for a range of vital functions.
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Rule Encoding in Orbitofrontal Cortex and Striatum Guides Selection.

Brianna J Sleezer1, Meghan D Castagno2, Benjamin Y Hayden2

  • 1Department of Brain and Cognitive Sciences and Center for Visual Science, University of Rochester, Rochester, New York 14618 Brianna_Sleezer@urmc.rochester.edu.

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience
|November 4, 2016
PubMed
Summary
This summary is machine-generated.

Rule maintenance, a key executive function, is broadly distributed across brain regions, not confined to a single executive system. This study found rule information in the orbitofrontal cortex and striatum guides decision-making.

Keywords:
decision makingexecutive controlmacaqueorbitofrontal cortexsingle unitstriatum

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Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Behavioral Neuroscience

Background:

  • Executive functions, like rule maintenance, are traditionally attributed to discrete executive systems.
  • An alternative hypothesis suggests rule maintenance is a broadly distributed function involving widespread cortical and subcortical circuits.
  • Previous research indicated some rule selectivity in the orbitofrontal cortex and dorsal striatum.

Purpose of the Study:

  • To investigate the neural basis of rule maintenance and rule-guided behavior.
  • To determine if rule representation extends to the ventral striatum, a region not previously associated with rule information.
  • To test the hypothesis that rule maintenance is a broadly distributed process.

Main Methods:

  • Electrophysiological recordings from single neurons in macaques performing a Wisconsin Card Sorting Task.
  • Analysis of neural activity in the orbitofrontal cortex, dorsal striatum, and ventral striatum.
  • Examination of rule encoding (category and identity) and its modulation of responses to choice targets.

Main Results:

  • Robust encoding of rule category (color vs. shape) and rule identity was found in all three recorded regions (orbitofrontal cortex, dorsal striatum, ventral striatum).
  • Neural responses to potential choice targets were modulated by rule identity, indicating that stored rule information influences behavioral choices.
  • These effects were independent of behavioral performance and reward expectation, supporting a role in rule-guided selection.

Conclusions:

  • Rule maintenance and the selection of options guided by rules are broadly distributed processes.
  • The orbitofrontal cortex and striatum (both dorsal and ventral) significantly contribute to executive control through rule representation and behavioral guidance.
  • Findings challenge the notion of a solely discrete executive system for rule maintenance, supporting a distributed neural architecture.