Week 2.3: Functional Localisation of the Cerebral Cortex Flashcards
What are the main functional areas of the cerebral cortex?
Primary sensory areas, primary motor area, association areas, and limbic areas.
What do primary sensory areas do?
They receive input from the thalamic sensory relay nuclei.
What is the role of the primary motor area?
It gives rise to much of the corticospinal tract.
What are association areas responsible for?
They process and integrate information from primary sensory and motor areas.
What are unimodal association areas?
Areas located adjacent to primary motor or sensory regions that process information from a single modality.
Where is the unimodal visual association cortex located?
Adjacent to the primary visual cortex.
Where is the unimodal motor association cortex located?
Adjacent to the primary motor cortex, includes the premotor cortex and supplementary motor area.
What are multimodal or heteromodal association areas?
Regions that integrate input from multiple sensory and/or motor modalities.
What functions are associated with multimodal association areas?
High-level intellectual functions such as language.
What is Brodmann’s classification system?
A system that divides the cerebral cortex into 52 areas based on cytoarchitectural differences.
Who developed the most widely used cortical area classification system?
Korbinian Brodmann.
What is the significance of Brodmann areas in clinical and research settings?
They help localize functional regions of the cortex.
What is Brodmann area 17 responsible for?
The primary visual cortex.
What is Brodmann area 4 responsible for?
The primary motor cortex.
