Karteikarten

Machines used to view the brain

Remy Romero Personality Psychology College Sophomore Englisch 10 Karten

Karten in diesem Stapel (10)

1Galvanic Skin Response GSRMeasures amount of sweat
does this by analyzing how quickly a slight of electrical current passes through two points on the skin
2Electromyography (EMG)measures muscle activity
Does this by estimating the electrical impulses of the muscles during contraction and relaxation.
3Computerized Topography (CT Scan)Takes a high resolution x-ray picture of brain
(produces static picture)
4Magnetic Resonance Imaging (MRI)Uses high radio frequency waves to get picture of brain
(produces static picture)
5Electroencephalogram (EEG)Electrodes placed on scalp to monitor electrical activity of the brain.
EP or evoke potential
(when electrical activity is measured in response to a specific stimulus)
6Positron Emission Tomography (PET Scan)Slightly radioactive glucose like substance is injected into brain and person is placed into a scanner
(active region use up more glucose than inactive ones)
7Functional Magnetic Resonance imaging (fMRI)monitors brain activity by tracing blood oxygen levels in brain
most detailed
8Problems with fMRItiming response
time intensive
expensive equipment
non independence error
time of day
nervousness of participants
9non independence errorresearcher unintentionally bias their results by not independently selecting which brain areas correlate with certain variables
10Transcranial Magnetic Stimulation (TMS)brief electrical current passes through a coil placed on head