Class 4 Flashcards
Electroncephalograph (EEG)
device used to record electrical activity in the brain
Computerized axial tomography (CT) scan
locate lesions or tumors
Magnetic Resonance Imaging (MRI)
structure of the brain and can help localize brain damage. Nothing about functions of the brain
Diffusion tensor imaging (DTI)
rate and diffusion or movement of water molecules along white matter pathways. Maps the connectivity of the brain
Positron emission tomography (PET)
Shows activity in the brain while someone performs a task
functional magnetic resonance imaging (fMRI)
difference between oxygenated hemoglobin and deoxygenated hemoglobin when exposed to magnetic pulses.
Can localize changes in brain activity (over briefer periods than PET)
Transcranial Magnetic Stimulation (TMS)
activates and deactivates regions of the brain with a magnetic pulse, temporarily mimicking brain damage
Hindbrain
medulla, pons, cerebellum
controls info coming in and out of spinal cord
Midbrain
substantia nigra, superior, and inferior colliculus
important for orientation and movement
Forebrain
cortex (sulcus, gyrus), corpus callosum, basal ganglia, limbic system (amygdala, hippcampus), thalamus, hypothalamus
complex cognitive, emotional, sensory, and motor functions (2 parts, cerebral cortex and underlying subcortical structures)
4 parts of cerebral cortex
frontal, parietal, temporal, occipital lobes
Frontal lobe
areas for movement, abstract thinking, planning, memory, and judgment
motor control, emotional inhibition, language production (Broca’s aphasia), planning, judgment
temporal lobe
responsible for hearing and language
auditory processing, language comprehension (wernicke’s aphasia), object/face recognition (prosopagnosia), memory
parietal lobe
processing info about touch
spatial awareness (visual neglect), somatosensation (sensory humunculus)
occipital lobe
processes visual info
visual processing (blindsight ex: can only see one thing like the word search guy bc hes completely unaware)
