Studying the brain Flashcards
neuropsychological tests
measure verbal and non verbal behaviour of brain damage sufferers
destruction/ stimulation techniques
neuro imaging
EEG
single vs double dissociation
impaired performance on one task w/ normal performance on another suggests that the tasks differ in one or more of their underlying processing mechanisms
or
poor performance of A and bad on B
neuro imaging
practice emphasising assessment to determine focal and diffuse lesions to one of the developing interventions to compensate for brain damage or neurodevelopment differences
(diagnose cerebral lesions from behavioural data)
lesioning
specific brain structures purposely destroyed to investigate behaviour relationships
EEG
electrodes placed on the scalp pick up and record brain activity
monitors electrical activity over time
specific behaviours or emotion
CT
allows for visualisation of the brain anatomy to determine the presence of focal lesions, structural deviations, tumours
MRI
uses magnetic fields, radio waves, computerised enhancement to map out brain structure
DTI
MRI based technology measures how molecules diffuse in water shows how structures,pathways and tracts are aligned
functional imaging techniques
map brain activity while a person does certain things to see which area is active
FMRI
monitor blood and oxygen flow in the brain to identify areas of high activity
magnetic changes which are blood oxygen level dependant
PET
examine brain function through radioactivity tagged chemicals
markers of blood flow and metabolic activity
functional near infrared spectroscopy
oxygenated and deoxygenated blood absorb infrared light measures signatures of blood flout determine which parts are most active.
TMS
lesioning live animal brains and seeing what impact is has on their behaviour TMS mimics this without permanent damage = the temporary enhancement or depression of activity in a specific area of the brain through creating a magnetic field
