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Bio - Coggle Diagram
Bio
Biological rhythms
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Siffre- circadian
spent several periods underground with no natural light or sound but had access to food and water. Resurfaced in September believing it to be August. Also repeated the study a few years later, both times found sleep wake cycle extended from 24 hours to 25.
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Folkard- circadian
studied 12 people in dark cave for 3 weeks. Would go to bed at 11.45 and wake at 7.45. Through the weeks the researchers sped up the clocks (pps unaware), at one point being 22 hours. Only 1 pps comfortably changed
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Studying brain
McPartland-ERP
found people with autism showed different patterns of ERPs when shown pictured of faces compared to non autistic people- people with autism had weaker responses and took longer then non autistic
Hampton-FMRI
OCD suffers with phobia of dirt and germs shown pictures in fMRI. The frontal lobe lit up- more oxygenated blood- shows where anxiety is from
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Broca & Wernick
relied on post mortems to establish links between language and the brain before neuroimaging became possible.
Lateralisation
Sperry
2 groups using matched pairs design: 1)people with corpus callosum cut (history of epilepsy) 2)pps with no history of epilepsy. Pps asked to look at centre dot on a screen, image presented to one side of fot for 1/10th second. When image presented on right side- could be named not drawn (left side is speech dominant), when presented to left eye, could be drawn not named (right side is for creativity)
Fink et al
used PET scans to which areas of the brain were active in the visual processing task. when control group to look at a picture as a whole, the right hemisphere was more active. When asked to look at the finer details, LH lit up
Counter: Nelson
analysed brain scans of 1000 people between ages 7-29 and found people did use different sides of brain for different tasks- support for lateralisation, but did not show any evidence of there being a dominant side
Luck et al
Pps with split-brain performed better than connected on certain tasks. e.g. faster at identifying the odd one out in an array of similar objects then normal controls
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Darwin
over time, animals within a species show random changes in their physical appearance and behaviour
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survival of the fittest- animals who poorly adapted die and genes do not get passe on. Species who had adapted survive and breed, and gradually the species begin to reflect these genetic mutation
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