Biopsych Flashcards
Who suggested the freeze repsonse in the flight or fight pathway?
gray
why does fight or flight not explain response in women?
Taylor et al (2002) tend to befreind mode
what is expressive aphasia
damage to brocas area
what is recessive aphasia
damage to wernickes area
who did brain scans on the speech areas?
petersen et al (1988) brocas active when talking, wenickes when lostening
what did lashley do?
removed 10-15% of cortex in rats and learned a maze - no difference
individual differences in language areas
haratsy 1997 size
limitations of split brain studies
disconnection was greater in some than others
some had longer previous drug therapy
comparison groups were non epileptic
small sample sizes
strenght of split brain studies
images flashed for a second - it works!
who studied brain plasticity
kuhn et al (2014) increased grey matter after playing video games
Maguire et al (2000) london taxi drivers enlarged posterior hippocampus
3 parts to functional recovery after trauma?
axonal sprouting
neuronal unmasking (wall 1977)
recruitment of homologous areas
stem cells
examples of negative brain plasticity
prolonged drug use
phantom limb
ways of studying the brain?
fMRI - oxygenated blood flow
EEG - electrical charges
ERPs - triggered brainwaves
Post-mortem
what are the 3 bioligcal rhytms
circadian
infradian
ultradian
Who investigated sleep/wake cycle
Siffre 1975
