Functional Organization of Cerebral Cortex

Cerebral Cortex

The functional part of the brain responsible for higher-level processes like language, memory, and decision-making.

Neocortex

Another term for the cerebral cortex, associated with higher cognitive functions.

Contralateral Function

The motor cortex on one side of the brain controls the opposite side of the body.

Cerebral Dominance

The specialization of one hemisphere of the brain to dominate certain functions, usually language.

Broca's Area

Area in the frontal lobe responsible for the production of speech.

Wernicke's Area

Area in the temporal lobe responsible for the comprehension of language.

Limbic System

A group of structures in the brain associated with emotions and drives.

Corpus Callosum

The bundle of nerve fibers that connect the two cerebral hemispheres.

Granular Cells

Interneurons of the cerebral cortex that transmit signals short distances.

Pyramidal Cells

Neurons in the cerebral cortex responsible for output signals.

Fusiform Cells

Neurons that also contribute to output signals in the cortex.

Thalamus

A brain structure that relays sensory and motor signals to the cerebral cortex.

Hypothalamus

A brain region controlling many autonomic functions and links with the limbic system.

Prefrontal Association Area

Involved in planning complex movements and higher thought processes.

Parieto-occipito-temporal Association Area

Integrates sensory information from various regions for interpretative reasoning.

Motor Areas

Regions of the cerebral cortex that direct voluntary muscle movement.

Sensory Areas

Regions of the cerebral cortex that process sensory inputs.

Association Areas

Parts of the cerebral cortex that integrate sensory and motor information.

Emotional Drive

The motivation arising from the limbic system to act in certain ways based on emotions.

Prosopagnosia

The inability to recognize faces, typically due to damage in the right inferior temporal lobe.

Dyslexia

A learning disorder leading to difficulties in reading and identifying speech sounds.

Corticospinal Tract

A key neural pathway responsible for controlling voluntary motor movement.

Cerebral Lateralization

The functional specialization of the two cerebral hemispheres.

Angular Gyrus

An area of the brain important for visual language processing.

Receptive Aphasia

Difficulty in understanding language, linked to damage in Wernicke's area.

Expressive Aphasia

Difficulty in producing speech, linked to damage in Broca's area.

Lateralization of Function

The tendency for some neural functions to be more dominant in one hemisphere.

Neurons

Basic working units of the brain that transmit information through electrical and chemical signals.

Glutamate

An excitatory neurotransmitter used by excitatory neurons in the cortex.

GABA (Gamma-Aminobutyric Acid)

An inhibitory neurotransmitter used primarily in the cerebral cortex.

Motor Speech Area

Another term for Broca's area, focused on speech production.

Stimuli

External factors that trigger sensory response in the nervous system.

Somatoesthetic Sensation

Sensations from the body including touch, pain, and temperature.

Autonomic Nervous System

Part of the peripheral nervous system responsible for involuntary actions.

Afferent Division

The part of the nervous system that carries sensory signals to the CNS.

Efferent Division

The part of the nervous system that carries motor commands from the CNS to the body.

Visceral Sensory System

Part of the nervous system that conveys information from internal organs.

Somatic Sensory System

Part of the nervous system that conveys information from the body’s surface.

Cerebellar Hemisphere

Part of the brain that coordinates voluntary movements and maintains posture.

Behavioral Functions

Functions of the brain that manage actions, reactions, and emotions.

Emotions

Reactions based on feelings that influence behavior.

Memory

The capability of the brain to store and retrieve information.

Motivation

The drive to act or behave in a specific way.

Higher Cognitive Functions

Advanced brain processes such as reasoning, decision-making, and problem-solving.

Visual Processing

Interpretation of visual stimuli in the brain.

Auditory Processing

Interpretation of auditory signals and sounds.

Cognition

The mental process of acquiring knowledge and understanding.

Personality

The combination of characteristics or qualities that form an individual's distinctive character.

Neural Signals

Electrical impulses that carry information along neurons.