Lecture 1: Human brain Flashcards
What is the Frontal association cortex involved in
Intelligence, personality, mood, behaviour and cognitive function
What is the parietal association cortex involved in
Spatial skills, 3D recognition of shapes, faces, concepts and abstract perception
What is the temporal association cortex involved in
Memory, Mood, Aggression, intelligence
What is Broca’s area vs Wernickes area and which lobe are they located in. Left hemi vs right corresponding regions
Left hemisphere: Broca’s area in the pre motor area in the frontal lobe. This coordinates vocal muscles and breathing to speak. Wernickes area is in the superior temporal gyrus in the temporal lobe. It interprets the meaning of speech and recognises spoken word.
Right: Add emotional content to spoken word
What happens when Brocas vs Wernickes area is damaged
Brocas- non fluent aphasia: has clear thoughts but can’t coordinate muscles to speak.
Wernickes: fluent aphasia: can still speak but cannot arrange words in a coherent fashion.
What is the homunculus. The two types and the regions of the brain they are in
A homunculus is a “map” of the body with different amounts of cortical area on the gyrus corresponding to different parts of the body, with adjacent areas being adjacent parts on the body. Some areas are bigger than others based on the amount of receptors/ neurons in that area in the body- not the size of the part.
There is a homunculus in post central gyrus- somatosensory and in pre central gyrus for motor.
What is the structure and function of the visual sensory cortical area
Primary visual sensory area is right at the end of the occipital lobe at the bottom next to the longitudinal fissure. It receives visual information and orders it based on where it is in the field of vision
Visual association area: anterior of 1’, it uses info from thalamus and 1’ area to relate past and present visual experiences to recognise and evaluate what is seen, large area because more cells
What is the difference between primary and secondary (association areas)
Primary receives the information but Secondary interprets it- involved with recognising. Blind vs not recognising objects
What is the structure and function of the auditory sensory cortical area
1’ Auditory area is close to the lateral fissure in the superior temporal lobe and receives information for sound.
Auditory association area just beneath this helps you recognise sound as music, speech or noise.
What is the main difference between the dominant and non dominant hemisphere of the brains
Left has most of the functions. Both have a primary auditory cortex, and primary visual cortex
