Related Experiment Video
Updated: May 8, 2026

07:08
Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings
Published on: August 1, 2018
Direct and Indirect Cooperation between Temporal and Parietal Networks for Invariant Visual Recognition
Journal of Cognitive Neuroscience
|August 24, 2013
Summary
A novel biologically inspired network models the primate visual system for invariant visual recognition (IVR). This Y-shaped network with "What" and "Where" pathways achieves human-like size and shift invariance.
Area of Science:
- Computational Neuroscience
- Artificial Intelligence
- Cognitive Science
Background:
- The primate visual system performs invariant visual recognition (IVR), identifying objects despite variations in size, position, and other factors.
- Existing models often struggle to replicate the full range of human visual recognition capabilities, particularly invariance.
- Understanding the neurobiological underpinnings of IVR is crucial for advancing both neuroscience and AI.
Purpose of the Study:
- To propose a new biologically inspired multilayered network model for primate visual system properties.
- To achieve invariant visual recognition (IVR) by incorporating neurobiological and psychological constraints.
- To predict anatomical connections and physiological interactions between temporal and parietal cortices.
Main Methods:
- A Y-like, double-branched multilayered network with parallel
- What
- (object identification) and
- Where
- (spatial localization) pathways was designed.
- The model incorporates five neurobiological constraints shaping architecture and four psychological constraints for human-like invariance.
- Processing units model local neuronal circuits, not single cells, integrating information flows across cortical layers.
Main Results:
- The network demonstrates shift-invariant and size-invariant recognition capabilities, similar to human performance.
- The
- What
- pathway achieves immediate recognition resistant to changes in size and position.
- Cooperation between the
- What
- and
- Where
- pathways enables recognition of peripheral patterns via simulated ocular movements.
Conclusions:
- The proposed biologically constrained model effectively replicates key properties of the primate visual system for IVR.
- The network's architecture and processing mechanisms provide a plausible explanation for human-like visual invariance.
- The model offers testable predictions regarding neural interactions within the visual cortex.
Related Concept Videos
Parallel Processing
The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...
Visual System
Light enters the eye through the cornea, a transparent, dome-shaped surface covering the surface of the eyeball that helps to direct and focus incoming light. This light is then channeled toward the pupil, an adjustable opening whose size is controlled by the iris. The iris, a pigmented muscle, regulates the amount of light entering the eye by contracting or dilating the pupil, thereby ensuring optimal light levels for clear vision.
Once through the pupil, the light passes through the lens, a...
Once through the pupil, the light passes through the lens, a...
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,...
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,...
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.
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.
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 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...

