Cerebral cortex anatomy + function Flashcards
What is the meaning of saccadic
Jump from one place to another
What is the meaning of tracking
Smooth movement
Name the sulci, and the lobes they separate
- Central sulcus - separates frontal and parietal
- Lateral sulcus - separates the temporal from the frontal + parietal
- Pareto-occipital sulcus - separates the parietal + occipital
What are some features of the frontal lobe
- Primary motor cortex
- Motor association cortex
- Frontal eyefields
- Prefrontal cortex
- Brocas area
Where is the primary motor cortex located, and what type of movement occurs
- Located on precentral gyrus
- Voluntary movement - contralateral
Where is the motor association cortex located, and what is its function
- Located on Pre-motor and supplementary motor cortex
- Function - Planning, sequencing + execution of movement (learnt movement)
What type of movement is involved with frontal eyefields
- Voluntary eye movements - saccadic movement (jumping)
What is the function of the prefrontal cortex
- Memory, learning, personality/behaviour, decision making
What is the function of Broca’s area?
Where is it found?
- Speech production
- Commonly found in the dominant area so left as it is contralateral as right is dominant
What do all primary cortex have in common?
All have an association cortex to analyse and recognise whatever its involved in
What are some features of the temporal lobe
- Primary auditory complex
- Auditory association complex
- Wernicke’s area
- Primary olfactory cortex
What is the function of the primary auditory complex
Conscious awareness of sound
What’s the function of the auditory association cortex
Analyses + recognises sound
What’s the function of Wernicke’s area
Understanding + comprehending language, speak fine
What is the function of the primary olfactory cortex
Awareness of smell
What are some features of the parietal lobe
- Primary somatosensory cortex
- Somatosensory association cortex
- Posterior association area
What is the primary somatosensory cortex also known as?
What is the function of the primary somatosensory cortex?
- Also known as post-central gyrus
- Awareness of somatic touch, proprioception
What’s the function of somatosensory association cortex
Analyse the somatic sensation + help with recognition
What’s the function of the posterior association area
Visual, audio and sensory association all meet here
What are some functions of the occipital lobe
- Primary visual cortex
- Visual association cortex
What’s the function of the primary visual cortex
Conscious awareness of visual stimulus
What’s the function of the visual association cortex
- Analyses the visual stimulus e.g. colour, movement to help recognise the visual stimulus
- Encloses the primary visual
