BIOPSYCH STUDIES

Question 1

dougherty

Answer 1

reported on 44 with OCD who had undergone a cingulotomy. At post surgical follow up about 30% met the criteria for successful response and 14% for partial response. Behaviours associatd with mental disorders may be localised.

Question 2

pertersen

Answer 2

used brain scans to demonstrate how wernicke’s area was active during a listening task and brocas during a reading task

Question 3

tulving

Answer 3

semantic and episodic memories are in different parts of prefrontal cortex

Question 4

lashley

Answer 4

removed areas of the cortex in rats that were learning the route through a maze. No area was proved to be more important than any other area.

Question 5

dick and tremblay

Answer 5

found that only 2% of modern researchers think that language in the brain is completely controlled by Broca and Wernicke areas. Language function is more holistic.

Question 6

fink

Answer 6

PET scans to identify brain areas active in a visual processing task when ps with connected brains were asked to attend to global elements of an image the RH was more active. But when asked to focus on finer detail the LH dominated.

Question 7

nielsen

Answer 7

analysed brain scans and found people did use certian hemispheres for certain task but no dominant side.

Question 8

rogers

Answer 8

showed lateralised chickens could find food while watching for predators but normal chickens couldn’t.

Question 9

gazzaniga

Answer 9

showed that split-brain ps actually perform better than connected controls on certain tasks eg. finding odd one out

Question 10

phineas gage

Answer 10

damage to frontal lobe caused change to temperment suggesting frontal lobe is responsible for regulating mood

Question 11

sperrys procedure

Answer 11

11 people with split brain surgery so carpus callosum severed tested projecting images to LVF and RVF

Question 12

sperrys findings

Answer 12

• if shown to RVF p could describe it but couldnt if shown to LVF
• if shown to LVF they couldnt describe it but could match it using left hand

Question 13

maguire

Answer 13

studied taxi drivers foun larger volume of grey matter in hippocampus than in control group. This part is responsible for navagiational and spatial developing. + longer in job the larger the grey matter

Question 14

draganski

Answer 14

brains of medical students 3 months before and after exams changes to parietal cortex and hippocampus occured

Question 15

bezzola

Answer 15

40-60 year old golf training 40 hours changes to increased motor cortex using FMRI

Question 16

medina

Answer 16

adaptation to prolonged drug use leads to poorer cognitive functioning in later life

Question 17

schneider

Answer 17

looked at time ps spent in education and chances of recovery if in education for longer better chanced

Question 18

FMRI

Answer 18

detect changes in blood oxygenation and flow in brain due to neural activity

Question 19

EEG

Answer 19

Measures electrical activity via electrodes using skull cap represents (brainwave patterns)

Question 20

ERP

Answer 20

left when extraneous brain activity from EEG is filtered out statistical technique. Relates to specific stimulus

Question 21

Post mortem

Answer 21

analysis of brain after death

Question 22

anoxal sprouting

Answer 22

growth of new nerve endings which connect with undamage cells forming new neural pathways

Question 23

denervation supersensitivity

Answer 23

axons that do a similar job becme aroused to a higher level to compensate for lost ones

Question 24

recruitment of similar areas on opposite side of brain

Answer 24

opposite side takes over specific tasks