Cortical Function Flashcards
What functions does the right and left parietal lobes of the cerebral cortex perform?
(i) Processing of unimodal sensory modalities from the contralateral size.
(ii) Processing of multiple sensory modalities form the contralateral size.
RIGHT specifically
(i) Spatial awareness
LEFT Specifically
(i) Mathematics
(ii) Writing
(iii) Left - right orientation
(iv) Finger identification
What functions does the right parietal lobes of the cerebral cortex perform?
RIGHT specifically
(i) Spatial awareness
What functions does the left parietal lobes of the cerebral cortex perform?
LEFT Specifically
(i) Mathematics
(ii) Writing
(iii) Left - right orientation
(iv) Finger identification
What function does the occipital lobe have?
The occipital lobe is responsible to interpreting visual inputs from the contralateral visual field.
What functions does the temporal lobe have?
(i) both R & L sides (2)
(ii) L side only
(i) both R & L sides - processing auditory input from both ears & memory
(ii) L side only - language comprehension
What are the roles of the parietal lobe?
(i) R & L lobes
(ii) R lobe
(i) R & L lobes - processing of somatosensory information (unimodal & multimodal) from the contralateral side of the body.
(ii) R lobe - spatial awareness
(iii) L lobe - mathematics, writing, finger identification & L/R orientation.
Label the following diagram of the functional areas of the frontal lobe of the cerebral cortex
What is the role of Broca’s area?
Broca’s area is responsible for planning and executing speech.
Broca’s area is located in the frontal lobe, posterior aspect of the inferior gyri of the left frontal lobe only.
What are the functional roles of the pre-frontal cortex (PFC) region of the frontal lobe?
The PFC (both R & L lobes) of the frontal cortex functions include:
(i) behavioural control / impulse control,
(ii) attention
(iii) working memory,
(iv) problem solving, &
(v) decision making.
At its most fundamental, the cerebral hemispheres function to:
Sensory perception occurs in:
(i)
(ii)
Sensory perception occurs in
(i) primary sensory areas
(ii) unimodal sensory areas
Processing sensory information and decision making regarding responses to sensory information occurs in?
(i)
(i) Multi-modal sensory association areas.
Which areas control the planning and response to sensory information?
(i)
(ii)
Response to sensory information is planned end executed
(i) primary motor areas, &
(ii) association motor areas.
Perception of sensory information occurs in the (i) primary sensory cortical regions and (ii) the unimodal sensory areas.
List the three primary sensory cortical regions and what they are responsible for.
(a)
(b)
(c)
(a) Primary somatosensory cortex - sense of touch (texture, pressure & location).
(b) Primary visual cortex - sight (colour, contrast, edges & light / dark).
(c) Primary auditory cortex - hearing (simple sounds, pitch & tone).
What regions of the brain is represented in this diagram?
The primary sensory cortices are highlighted in this diagram. These are responsible for basic sensory perception. They include:
(a) Primary somatosensory cortex - sense of touch (texture, pressure & location).
(b) Primary visual cortex - sight (colour, contrast, edges & light / dark).
(c) Primary auditory cortex - hearing (simple sounds, pitch & tone).
Review the structure labelled in this diagram and outline its role (perception; processing; decision making; planing and executing response) & provide specific examples.
The somatosensory cortex is a primary sensory area, it is responsible for perception, specifically touch including location, pressure and texture.
Review the region identified in the image and provide its role (perception, processing, decision making, planning and executing) as well as some specific examples.
The primary auditory cortex is involved in perception, specifically of simple sounds, pitch and tone.
Review the region identified in the image and list the primary role of this region (perception, processing, decision making or planning and execution of a response), providing specific examples of its role.
The primary visual cortex is responsible for the perception of visual input, specifically colours, contrast, light / dark and edges.
What is the role of unimodal sensory association areas within the cerebral cortex?
Unimodal sensory association areas are responsible for detailed perception of stimuli.
They are located adjacent to primary sensory areas.
For example the temporal visual association areas help detect faces, animals & trees; the temporal auditory areas aid in the identification of specific sounds (ie bird calls); the parietal somatosensory area helps with spatial awareness, stereognosis & graphaesthesia.
What is the role of multimodal areas? How many multimodal areas have been identified within the cerebral cortex?
Multimodal areas of the cortex process information coming from different sensory association areas.
Three.
What are the regions of the brain called that have the highest level of cortical control?
Multimodal areas are considered to have the highest cortical control.
Describe where the posterior multi modal association area (PMMAA) is within the cerebral hemispheres.
Located on both R & L sides in and around the areas of the supra-marginal gyrus (posterior aspect of temporal lobe superior upward infecting gyrus).
Describe where the anterior multi modal association area (AMMAA) is located within the cerebral hemispheres.
The Anterior multi modal association area is located in the prefrontal cortex of the R & L frontal lobes.
Label the attached drawings of the multimodal association areas of the brain (the regions of highest cortical control).
