Introduction to biological psychology Flashcards
what is the term for the definiton = a true experiement must be performed where subjects are randomly assigned to different conditions
causation
Define phrenology
- bumps on skull reflected functions/traits of a person
- localization of function
Describe the phineas gage story
- metal rode through his left frontal lobe
- went from being pleasant to angry
- frontal lobe carries out higher mental processes
What is prosopagnosia
- inability to recognise faces
- bilateral damage to fusiform gyrus
What are two ways to see the effect of direct brain stimulation
- implanted electrodes (probe brain of person undergoing brain surgery)
- optogenetics (activates targeted neurons by a device that shines a laser)
Why is majority of research tested on animals
- ethical debate
- easier to study on non human species
What applies intense magnetic field and temporarily activates and deactivates neurons
Transcranial magnetic stimulation (TMS)
What are the different methods that allow us to understand the link between mind and body
- neuropsychological case studies
- lesion studies
- brain stimulation
What is CT or CAT
- injection of a dye
- x-ray to make structural images
What is MRI
- based on signal from protons
- excellent spatial resolution
- safer and less time consuming
What is EEG
electrical feild of brain (temporal resolution)
- does not tell you where activity originates
What is MEG
measures the magnetic feild around the EEG (temporal resolution)
- does not tell you where activity originates
What is a PET scan
radioactive marker to visualise brains blood flow
What is fMRI
- 3D view of brain for spatial resolution
- indirect (measures blood oxygenation not neuron activity)
What is a lesion
An area that has been damaged
