chapter 3.4 Flashcards
lessoning
a technique in which researchers intentionally damage an area of the brain.
transcranial magnetic stimulation (tms)
a procedure in which an electromagnetic pulse is delivered to a targeted region of the brain
- pulse interacts with ions and temporarily impairs brain activity
structural neuroimaging
brain scan that produces images of the different structures of the brain
- measures size of different brain areas
3 forms of neural imaging
computerized tomography (ct scan), magnetic resonance imaging (mri), diffusion tensor imaging(dti)
computerized tomography (ct scan)
a technique in which x-rays are sent through the brain by a tube that rotates around the head.
magnetic resonance imaging (MRI)
technique where images are created based on how different neural regions absorb and release energy while in a magnetic field
- very detailed
diffusion tenser imaging (DTI)
allows researchers to measure white-matter pathways in the brain.
functional neuroimaging
type of brain scanning that provides information about which areas of the brain are active when a person performs a particular behaviour.
electroencephalogram (EEG)
measures patterns of brain activity with the use of multiple electrodes attached to the scalp
magnetocephalography (MEG)
measures the tiny magnetic fields created by the electrical activity of nerve cells in the brain
positron emission tomography (PET)
where a low level of a radioactive isotope if injected into the blood, can be seen when its movement to activated regions of the brain are measured.
Functional Magnetic Resonance imaging (fMRI)
Allows researchers to view the brain and see which areas are activated while you perform different tasks