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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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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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Association Areas of the Cortex01:21

Association Areas of the Cortex

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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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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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Perception01:28

Perception

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Perception is a fundamental psychological process that enables individuals to organize, interpret, and consciously experience sensory information. This process is crucial for understanding and interacting with the world around us. It includes both bottom-up and top-down processing, each playing a distinct role in how we perceive our environment.
Bottom-up processing begins at the sensory level, where receptors detect external environmental stimuli. These could include the tactile sensation of...
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Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

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Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
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Related Experiment Video

Updated: Jan 11, 2026

Translational Brain Mapping at the University of Rochester Medical Center: Preserving the Mind Through Personalized Brain Mapping
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A shared code for perceiving and imagining objects in human ventral temporal cortex.

V S Wadia, C M Reed, J M Chung

    Biorxiv : the Preprint Server for Biology
    |November 19, 2025
    PubMed
    Summary
    This summary is machine-generated.

    Mental imagery relies on the same brain cells used for vision. Neurons in the human temporal cortex (VTC) use a feature axis code for objects, and this code is reactivated during mental imagery.

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    Area of Science:

    • Neuroscience
    • Cognitive Science

    Background:

    • Visual perception mechanisms are well-studied in animals, but neural underpinnings of mental imagery are less understood.
    • Mental imagery involves recalling past experiences and envisioning new ones, crucial for cognition.

    Purpose of the Study:

    • To investigate the neural mechanisms of visual imagery in the human brain.
    • To determine if the same neural codes used for object perception are involved in visual imagery.

    Main Methods:

    • Recorded activity from single neurons in the human ventral temporal cortex (VTC).
    • Identified a distributed axis code used by VTC neurons to represent objects.
    • Generated synthetic stimuli based on the identified neural code.
    • Measured neural responses while subjects performed visual imagery tasks.

    Main Results:

    • Approximately 80% of visually responsive VTC neurons use a distributed axis code for object representation.
    • Around 40% of these axis-tuned VTC neurons showed reactivation of the visual code during mental imagery.
    • Reconstruction of imagined objects from neural activity was possible.

    Conclusions:

    • Visual imagery reactivates the same neural populations and codes involved in visual perception.
    • Provides single-neuron evidence for a generative model in human VTC supporting mental imagery.
    • Suggests a shared neural basis for perception and imagination.