CH 3.3 Key Terms Flashcards
ablation
removal of a brain area, generally with a surgical knife
computerized axial tomography
method of visualizing a living brain by injecting a dye into the blood and placing a person’s head into a CT scanner; x-rays are passed through the head and recorded by detectors on the opposite side
electroencephalograph (EEG)
a device that records electrical activity of the brain through electrodes attached to the scalp
lesion evoked potentials or evoked responses
electrical recordings on the scalp from brain activity in response to a stimulus
lesion evoked potentials or evoked responses
electrical recordings on the scalp from brain activity in response to a stimulus
functional magnetic resonance imaging (fMRI)
a modified version of MRI that measures energies based on hemoglobin instead of water; determines the brain areas receiving the greatest supply of blood and using the most oxygen
lesion
damage to a structure
optogenetics
a device that measures the faint magnetic fields generated by brain activity
magnetoencephalograph (MEG)
a device that measures the faint magnetic fields generated by brain activity
magnetic resonance imaging (MRI)
method of imaging a living brain by using a magnetic field and a radio frequency field to make atoms with odd atomic weights all rotate in the same direction and then removing those fields and measuring the energy that the atoms release
phrenology
a process of attempting to relate skull anatomy to behavior
stereotaxic instrument
a device for the precise placement of electrodes in the brain
Positron-emission tomography (PET)
method of mapping activity in a living brain by recording the emission of radioactivity from injected chemicals
Transcranial magnetic stimulation (TMS)
the application of an intense magnetic field to a portion of the scalp, temporarily inactivating neurons below the magnet
