Brain anatomy Flashcards
3 membranes around brain
Dura mater, Arachnoid membrane, pia mater
frontal lobe
planning & goals
parietal lobe
links body to world
occupital lobe
decodes messages from eyes to brain
temporal lobe
understand meaning
primary somatosensory cortex
Touch/ pain
optic ataxia
clumsy motion of limbs under visual guidance (superior parietal lobe lesions)
ideomotor apraxia
loss of purposeful movements
inattentional blindness
temporary blindness when exposed to unexpected Stimuli
Chabris & Simons 2010
too much attention to one aspect limits ability for other aspects
hemispatial neglect
forgetting one side of space (left usually)
Kluver-Bucy syndrome 1950
monkeys & temporal lobe damage - poor memory , no sense of danger
semantic dementia
temporal lobe damage anomia
associative agnosia
damage to temporal lobe , issues recognising objects
prospagnosia
issues with face recognition
wernickes aphasia
language comprehension deficit damage in left posterior temporal lobe
Phineas Gage
Pole in frontal lobe only personality changed
Primary motor cortex
controls body movements
premotor cortex
action plans
dorso lateral PFC
executive functions
ventro lateral PFC
emotional evaluation
shallice 1982
1-planning 2-spatial frontal patients impaired on 1 , parietal patients opposite
Broca Aphasia
speech production issues
utilisation behaviour
objects elicit response that’s in appropriate
Ihermite 1986
patients home, sees bed and starts getting ready to sleep
frontal leucotomy
severed frontal lobe , sufferers from anxiety , depression , s z
Tooth 1961
frontal lobotomy on 9000 patients 41% improved 28% minimal 25% no change 2% worse
Feinstein 2010
amygdala triggers fear response
Phelps 2000
race faces shown amygdala stronger activation for black faces
anterograde amnesia
after lesions, problem with new into memory
Retrograde amnesia
prior to lesions
H M case study
hippo campus removed knew prior events but couldn’t remember anything else
Milner 1962
H M learnt novel task , days later no recollection
