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Related Concept Videos

Gestalt Principles of Perception01:21

Gestalt Principles of Perception

Gestalt principles provide a framework for understanding how humans perceive objects as unified wholes within their context. These principles are essential in explaining the cognitive processes that make sense of complex visual stimuli by organizing them into coherent groups. One fundamental principle is proximity, which posits that objects located close to each other are perceived as a collective group. For instance, when dots are positioned near one another, the visual system interprets them...
Anatomy of the Brain: Ventricles01:18

Anatomy of the Brain: Ventricles

There are hollow fluid-filled cavities known as ventricles deep inside the human brain. There are two lateral ventricles, one in each cerebral hemisphere, and each has three different projections — the anterior, inferior, and posterior horns visible from the lateral side. A thin membrane called the septum pellucidum separates the two lateral ventricles. The slender third ventricle in the diencephalon is connected to each lateral ventricle via a channel called the interventricular foramen. 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,...
Vision01:24

Vision

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.
Concepts and Prototypes01:24

Concepts and Prototypes

The human nervous system handles vast amounts of information by translating sensory stimuli into neural impulses, which the brain processes, creating thoughts expressed through language or stored as memories. The brain also synthesizes information from emotions and memories, which significantly influence thoughts and behaviors. This intricate process creates a comprehensive mental picture.
The brain organizes this information using concepts, which are mental categories grouping linguistic data,...
Control Volume and System Representations01:16

Control Volume and System Representations

Two key frameworks are employed to analyze mass, energy, and momentum transfer: the control volume approach and the system approach. These frameworks offer different perspectives, depending on whether the focus is on a specific region in space (control volume approach) or a defined mass of fluid (system approach).
The control volume approach considers a stationary region in space through which fluid flows. This region is bounded by a control surface.  For instance, in the case of water flowing...

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Related Experiment Video

Updated: Jul 13, 2026

Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings
07:08

Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings

Published on: August 1, 2018

Action-related properties shape object representations in the ventral stream.

Bradford Z Mahon1, Shawn C Milleville, Gioia A L Negri

  • 1Center for Mind/Brain Sciences, University of Trento, Rovereto (TN) 38068, Italy. mahon@fas.harvard.edu

Neuron
|August 7, 2007
PubMed
Summary

Object processing in the brain

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Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Visual Perception

Background:

  • The organizational principles of the ventral object-processing stream are not fully understood.
  • Investigating how the brain categorizes and processes visual objects is crucial for understanding perception.

Purpose of the Study:

  • To investigate the organizing principles of the ventral object-processing stream.
  • To determine if motor-relevant object properties influence neural responses in the ventral stream.

Main Methods:

  • Functional magnetic resonance imaging (fMRI) to measure brain activity.
  • Stimulus-specific repetition suppression (RS) analysis to assess neural adaptation.
  • Quantitative analysis to rule out visual shape confounds.
  • Functional connectivity analysis.
  • Neuropsychological study.

Main Results:

  • Repetition suppression in the ventral stream is biased by motor-relevant object properties, not visual shape.
  • Similar biases were found in dorsal stream regions.
  • Neural specificity for tools in the ventral stream correlates with motor-relevant information in dorsal structures.

Conclusions:

  • The ventral stream's organization for object processing is influenced by motor-relevant information.
  • Similarity metrics computed over motor information, potentially represented in dorsal structures, may drive category specificity in the ventral stream.
  • This suggests a cross-stream interaction in object representation.