Parietal Cortex
Parietal Cortex - Related Videos
06:28
Transcranial Electrical Stimulation of the Motor Cortex in an Awake Rat
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2025
Source: Fritsch, B. et al. Transcranial Electrical Brain Stimulation in Alert Rodents. J. Vis. Exp. (2017)This video demonstrates the implantation of electrodes and the application of transcranial electrical stimulation (tES) to the motor cortex of alert rats. It outlines the steps involved in electrode placement, stimulation delivery, and the resulting neuronal and microglial activation, highlighting its neurotherapeutic potential.
08:30
Preparation of Synaptoneurosomes from Mouse Cortex using a Discontinuous Percoll-Sucrose Density Gradient
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Cited by 36 •
2011
A method to prepare translationally active, intact synaptoneurosomes (SNs) from mouse brain cortex is described. The method uses a discontinuous Percoll-sucrose density gradient allowing for the quick preparation of active SNs.
08:35
Detecting Cortex Fragments During Bacterial Spore Germination
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Cited by 6 •
2016
Herein, we describe a colorimetric assay to detect the presence of reducing sugars during bacterial spore germination.
11:11
Effects of Transcranial Alternating Current Stimulation on the Primary Motor Cortex by Online Combined Approach with Transcranial Magnetic Stimulation
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Cited by 11 •
2017
Transcranial Alternating Current Stimulation (tACS) allows the modulation of cortical excitability in a frequency-specific fashion. Here we show a unique approach which combines online tACS with single pulse Transcranial Magnetic Stimulation (TMS) in order to "probe" cortical excitability by means of Motor Evoked Potentials.
01:21
Association Areas of the Cortex
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2025
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,...
FAQs
Integration is useful because each sensory channel contributes a different constraint on spatial interpretation. Somatosensory signals inform the body, proprioceptive signals indicate body position, and visual signals describe external surroundings. By combining these inputs, the parietal cortex supports a coordinated representation for selecting a target, orienting attention, or organizing a reach.
Spatial representations do more than describe where objects or body parts are; they provide a reference for converting perception into behavior. When a person reaches or navigates, the relevant location must be related to the body and surrounding space. Parietal processing therefore links perceptual information with action planning, helping explain effects on movement planning and spatial behavior.
Attention and body awareness are connected through spatial organization. The parietal cortex helps orient attention toward relevant locations while also representing the body in relation to its surroundings. This relationship allows psychologists to examine whether a difficulty reflects impaired selection of external information, altered awareness of the body, or a broader problem with spatial representation.
Researchers use neuroimaging, behavioral experiments, and evidence from brain injury to study the region from complementary perspectives. Neuroimaging relates parietal activity to psychological functions, behavioral tasks test performance during perception or action, and injury studies show which abilities deteriorate after disruption. Together, these approaches connect brain activity, observable behavior, and functional consequences.
Brain-injury studies can identify functions that are disrupted when parietal regions are damaged. Impaired attention, movement planning, or awareness of one side of space each provides evidence about the region’s contribution to behavior. These findings help psychologists connect a specific pattern of difficulty with underlying processes involved in spatial cognition, perception, and action.
In psychology, the region provides a framework for studying spatial cognition, body awareness, numerical processing, and multisensory perception. Examining these abilities together helps researchers understand how the brain supports perception and goal-directed behavior across different tasks. Behavioral experiments, neuroimaging, and brain-injury research each contribute evidence about these psychological functions and their disruption.