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Language and Cognition

Language and Cognition

Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.

Higher Mental Functions of the Brain: Language

Higher Mental Functions of the Brain: Language

Language is a system of communication that allows the expression of thoughts, ideas, and feelings. The brain processes language in both hemispheres.
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...

Lateralization

Lateralization

Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.

Association Areas of the Cortex

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,...

Cerebral Hemispheres

Cerebral Hemispheres

The human brain, a complex organ, is functionally divided into two cerebral hemispheres—left and right. These hemispheres are interconnected by a structure of paramount importance, the corpus callosum. This substantial bundle of neural fibers is not just a bridge between the hemispheres but a crucial element for the brain's comprehensive functioning. It enables efficient communication between the two hemispheres, allowing each side of the brain to control and receive sensory and motor...

Motor and Sensory Areas of the Cortex

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.

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Related Experiment Video

Updated: Jul 15, 2026

Transcranial Direct Current Stimulation (tDCS) of Wernicke's and Broca's Areas in Studies of Language Learning and Word Acquisition

Transcranial Direct Current Stimulation (tDCS) of Wernicke's and Broca's Areas in Studies of Language Learning and Word Acquisition

Published on: July 13, 2019

Functional specialisation within the cortical language network: effects of cortical dysfunction.

R Vandenberghe¹

¹Laboratorium Cognitieve Neurologie, KULeuven.

Verhandelingen - Koninklijke Academie Voor Geneeskunde Van Belgie

|April 13, 2007

Summary

This study validates neuroanatomical language models using brain imaging and behavioral tests in patients with stroke and cognitive impairment. Findings pinpoint specific brain regions crucial for visual knowledge retrieval and lexical-semantic processing.

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Last Updated: Jul 15, 2026

Transcranial Direct Current Stimulation (tDCS) of Wernicke's and Broca's Areas in Studies of Language Learning and Word Acquisition

Transcranial Direct Current Stimulation (tDCS) of Wernicke's and Broca's Areas in Studies of Language Learning and Word Acquisition

Published on: July 13, 2019

Utilizing Repetitive Transcranial Magnetic Stimulation to Improve Language Function in Stroke Patients with Chronic Non-fluent Aphasia

Utilizing Repetitive Transcranial Magnetic Stimulation to Improve Language Function in Stroke Patients with Chronic Non-fluent Aphasia

Published on: July 2, 2013

Study Design for Navigated Repetitive Transcranial Magnetic Stimulation for Speech Cortical Mapping

Study Design for Navigated Repetitive Transcranial Magnetic Stimulation for Speech Cortical Mapping

Published on: March 24, 2023

Area of Science:

Neuroscience
Cognitive Psychology
Neurolinguistics

Background:

Traditional neuroanatomical models of language and semantic memory rely on neuroimaging in healthy individuals and lesion studies.
A novel approach is presented to test these models using functional imaging and behavioral studies in patient populations.

Purpose of the Study:

To validate existing neuroanatomical models of language and semantic memory.
To investigate the neural basis of semantic knowledge retrieval and lexical-semantic processing.
To gain insights into language system reorganization in neurodegenerative diseases.

Main Methods:

Testing neuroanatomical models developed in healthy volunteers.
Utilizing functional neuroimaging and behavioral studies in patient cohorts.
Study populations included patients with focal cortical stroke, amnestic mild cognitive impairment, and primary progressive aphasia.

Main Results:

The right mid- and anterior fusiform gyrus are essential for detailed visual attribute knowledge retrieval.
The left posterior superior temporal sulcus plays a critical role in lexical-semantic retrieval.
The left anterior temporal pole acts as an associative hub linking distributed semantic representations.

Conclusions:

Converging evidence supports the functional specialization of identified brain regions in language and semantic memory.
The study provides new insights into the degradation and reorganization of the language system in cortical neurodegenerative disease.
This research bridges findings from healthy volunteers to patient populations, enhancing the robustness of neuroanatomical models.