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Related Concept Videos

Motor and Sensory Areas of the Cortex01:14

Motor and Sensory Areas of the Cortex

The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex.
Somatosensory, Motor, and Association Cortex01:23

Somatosensory, Motor, and Association Cortex

The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at the...
Association Areas of the Cortex01:21

Association Areas of the Cortex

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:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...

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Related Experiment Video

Updated: May 7, 2026

Creating Objects and Object Categories for Studying Perception and Perceptual Learning
14:38

Creating Objects and Object Categories for Studying Perception and Perceptual Learning

Published on: November 2, 2012

Task- and experience-dependent cortical selectivity to features informative for categorization.

Marieke van der Linden1, Joost Wegman, Guillén Fernández

  • 1Radboud University Nijmegen.

Journal of Cognitive Neuroscience
|September 20, 2013
PubMed
Summary

The human brain actively categorizes objects by focusing on informative features, as shown by fMRI studies. This selective processing in the frontal and occipitotemporal cortex is learned and task-dependent.

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Perception

Background:

  • Monkey electrophysiology shows selective responses to informative features.
  • Human fMRI demonstrates selective responses to trained objects.

Purpose of the Study:

  • Investigate experience-dependent neural mechanisms of object categorization.
  • Determine how the brain utilizes informative features during categorization.
  • Explore the roles of the inferior frontal gyrus and occipitotemporal cortex in feature-based categorization.

Main Methods:

  • Human participants trained on computer-generated fish stimuli with informative and uninformative features.
  • fMRI adaptation paradigm used during object categorization.
  • Perceptual sensitivity and fMRI data analyzed for correlations with performance.

Main Results:

  • Participants showed higher perceptual sensitivity to informative features post-training.
  • Right inferior frontal gyrus and occipitotemporal cortex selectively responded to informative features during categorization.
  • Selective cortical responses were experience-dependent and task-specific.
  • Inferior frontal gyrus responses showed category selectivity correlating with performance.
  • Occipitotemporal cortex showed enhanced selectivity for informative features and decreased selectivity for uninformative features with training.

Conclusions:

  • The frontal cortex actively categorizes objects using informative features and ignoring irrelevant ones.
  • Occipitotemporal cortex training enhances sensitivity to relevant features and reduces sensitivity to irrelevant ones.
  • Task-related processing significantly influences the neural representation of features during object categorization.