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Related Concept Videos

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Decision Making

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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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Related Experiment Video

Updated: Dec 27, 2025

Online Repetitive Transcranial Magnetic Stimulation of Dorsomedial and Dorsolateral Prefrontal Cortex in Cognition Decision Making, and Cognitive Dissonance
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Online Repetitive Transcranial Magnetic Stimulation of Dorsomedial and Dorsolateral Prefrontal Cortex in Cognition Decision Making, and Cognitive Dissonance

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Context-Dependent Decision Making in a Premotor Circuit.

Zheng Wu1, Ashok Litwin-Kumar2, Philip Shamash2

  • 1Howard Hughes Medical Institute, Columbia University, New York, NY 10027, USA; Mortimer B. Zuckerman Mind Brain Behavior Institute and Department of Neuroscience, Columbia University, New York, NY 10027, USA.

Neuron
|February 28, 2020
PubMed
Summary
This summary is machine-generated.

The anterior lateral motor (ALM) cortex, not orbitofrontal cortex, is crucial for olfactory-guided decisions. ALM uses sample odor context, not decision outcomes, to link sensory input to actions.

Keywords:
ALManterolateral motor cortexcontextdecision-makingflexible behaviorolfactionpremotor cortexworking memory

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Olfactory Processing

Background:

  • Cognitive capacities enable flexible associations between sensory input and behavioral actions.
  • Understanding the neural basis of these associations is key to deciphering complex behaviors.

Purpose of the Study:

  • To investigate the neural mechanisms underlying olfactory-guided associative learning and decision-making.
  • To determine the specific brain regions involved in processing contextual information for olfactory tasks.

Main Methods:

  • Utilized an olfactory delayed match-to-sample task.
  • Performed multi-neuron recordings in olfactory sensory and association cortices.
  • Inactivated the anterior lateral motor area (ALM) and orbitofrontal cortex to assess their roles.

Main Results:

  • Neural representations of sample and test odors were found in olfactory sensory and association cortex.
  • Inactivation of ALM, but not orbitofrontal cortex, during the pre-test epoch severely impaired performance.
  • Context-independent olfactory decisions remained unimpaired, suggesting ALM's role in context processing.

Conclusions:

  • The anterior lateral motor area (ALM) is critical for integrating contextual olfactory information to guide behavior.
  • ALM does not receive pre-computed match/non-match decisions but rather uses sample odor identity to establish odor-action mappings.
  • A specific population of pyramidal neurons in ALM layer 2 may play a key role in this contextual processing.