Biopsycology Flashcards
(33 cards)
What does Taylor argue about the fight or flight response ?
She argued that women are more likely to tend and befriend rather than have the fight or flight response
What did Grey argue abnout the freeze response ?
He suggests that humans first pause and try to get as much information about the situatuion as they can so that they can have the best response
What did Van Downs et al find about the gender differences in stress response ?
He found that acute stress is more likely to lead to epopel working together more even in men as humans are social animals which can b e shown by events such as 9/11
How does Phinneas gage support the localisation of function ?
Following his incident with the railroad spike his temprement changed and this meant he went from being quiet to being aggressive and assertive
How does Brocas case study of tan support the localisation of funvtion ?
He foudn that Tna had damage in the left temporal lobe and suggested this area is involved in speech production
How does Lashleys rats support the localisation of function ?
They found that memory was not localised as the rats could still remmeber how to complete the maze and that the brain can carry out certian functions when it is needed
How does Doughertys study of OCD surgery support the localisation of funciton ?
He found that out of 44 patients a third of the patients showed an improvement of their sympoms supporting the idea that conditions are also localised
What did Maguire find about brain plasticity ?
He found that the taxi drivers had an increase of grey matter in their brains and a change in the prosterior hippocampus
How do Hubel and Weisel support brain plaasticity ?
They sewed up one eye of a kitten and found that there was no change in the activity of the area of the brain associated witht this and instead both sides began processing for the one eye
What did Ramachandran and hirstein find about phantom limb syndrome ?
He found that there was a correlation between cortical recognition in the somatosensory cortex
How does Khun et al support plasticity ?
They foudn that there was an increase in the volume of grey matter in participants that played video games for 30 mins a day for a period of 2months
What did Davidson et al find about brain plasticity ?
They found that there wasd a permenant chnage in the brain structure caused by prolonged meditation in monks,
How does Praganski support brain plasticity ?
He fpuond that medical students had an increase of grey matter and a change in the structure of the hippocampus and the parietal cortex
How does Taijiari et al support functional recovery ?
They found that the rats had an increase in stem cells differentiating into nerve cells following damage to the brain
How does Elbert et al support funcitonal recovery of the brain ?
He found that there is a hgiher chance of recovery in young people due to their increased connections and that this deteriorates with age
Howd eos Schnelder et al support the idea that there are factors which affect brain plasticity ?
They found that the longer a person had spent in education the more likely they were to achieve full recovery, 2/5 of the patients had >16 years of education
What has research found about the imapact of lifestyle choices such as smoking in functional recovery ?
Smoking hardens the blood vessels making it less likely for a full recorvery to be achieved as they are harder to reform
How does Sperry support the split brain research ?
He found in a sample of 11 participants who had their corpus collosum removedthey could only describe the object shown in the right visual field as processing was in the left (brocas area) they could write words in the LVF but say the RVF and could only recognise composite photos from the LVF
How does Rogers et al find that having a split brain inceased the brains capasity ?
They found that chickens are able to complete two tasks at once which allows them to find food whist keepig safe from predators showing that a split brain can improve efficiency
How did Szaflakri et al finsd that there can eb changes in lateralisation ?
They found that as a child becomes older their language becomes more lateralised but after the age of 25 it begins to decrease
How did Turke et al find about functional recovery and that language may not be only restricted to the left hemisphere ?
They found that there was a change following damage to the left hemisphere and that a homologous area of the brain can be utilsed
What did Siffre find in his cave study ?
He foujnd that althoug he removed exogenous zeitgabers that his sleep wake cycle remained at around 25 hours shpwing that endogenous pacemakers are important in our circadian rythms
What did Folkard et al find about circadian rhythms ?
They studied a group of 12 people living in the dark for 3 weeks and found that the participants were unable to adjust to the 22hr day showing the strength of endogenous pacemakers
How does Aschoff et al support circadian rhythms ?
They dound that the bodys natural cycle is closer to 25 hours than 24 hours
