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Related Concept Videos

Motor and Sensory Areas of the Cortex01:14

Motor and Sensory Areas of the Cortex

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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....
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Association Areas of the Cortex01:21

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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:
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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Somatosensory, Motor, and Association Cortex01:23

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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...
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Lobes of the Cerebrum01:22

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The cerebral cortex, a critical structure of the brain, is intricately divided into two hemispheres, each consisting of four distinct lobes: occipital, temporal, frontal, and parietal. These lobes function cooperatively to regulate various cognitive and sensory functions, forming the basis of our complex neural capabilities.
Frontal lobe
The frontal lobes, located behind the forehead, are the command center of our brain, controlling personality, intelligence, and voluntary muscle movements....
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Vision01:24

Vision

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Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
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Somatosensation01:33

Somatosensation

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The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.
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Related Experiment Video

Updated: Mar 25, 2026

Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings
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Multisensory Part-based Representations of Objects in Human Lateral Occipital Cortex.

Goker Erdogan1, Quanjing Chen1, Frank E Garcea1

  • 1University of Rochester.

Journal of Cognitive Neuroscience
|February 27, 2016
PubMed
Summary

Human lateral occipital cortex (LOC) uses a multisensory, part-based format to represent 3-D objects. Visual and haptic exploration reveal similar neural activity patterns in LOC, highlighting object structure.

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Area of Science:

  • Cognitive Neuroscience
  • Neuroimaging
  • Visual Perception
  • Haptic Perception

Background:

  • Understanding how the brain represents objects, particularly in the temporal-occipital cortex, remains a key challenge.
  • The format of high-level object representations is crucial for object recognition and interaction.

Purpose of the Study:

  • To investigate the format of object representations in human lateral occipital cortex (LOC).
  • To determine if LOC encodes objects in a multisensory and part-based manner.

Main Methods:

  • Functional magnetic resonance imaging (fMRI) was used to measure brain activity.
  • Participants explored novel 3-D objects using both visual and haptic modalities.
  • Linear classifiers were trained on neural data to predict object structure.

Main Results:

  • Visual and haptic exploration of objects elicited similar neural activity patterns in LOC.
  • Shared variance in BOLD contrast patterns between visual and haptic exploration correlated with object part structure.
  • Classifiers successfully predicted novel objects based on their part structure using LOC data.

Conclusions:

  • Human LOC employs a multisensory code for object representation.
  • This code specifies the part structure of objects, integrating information from different sensory modalities.
  • Findings advance our understanding of object representation in the human brain.