PSYCH 104 Flashcards
(127 cards)
Central Nervous system
Brain, spinal cord
Peripheral nervous system
connects the CNS with muscles(sensory neurons and motor nerves)
Somatic system
related to voluntary behavior
Automatic nervous system
related to involuntary movement
Brain
2 % of our body weight ,uses 20 of are oxygen
Spinal cord
Most nerves enter the central nervous system from here
Spinal Reflex
simple stimulus that results in movement without thinking
PNS(Autonomic)
emotion, stress, digestion and circulation
PNS(Somatic)
Sensory nerves, motor nerves
Parasympathetic
stops/calms
Sympathetic
excites/activates
Neuropsychological tests
Can be used to measure verbal and non verbal behavior.
Destruction
Damaging parts of the brain to see how it changes behavior
Stimulation
Stimulating parts of the brain with an electric current
Electrocephlogram(EEG)
Records the electrical activity of thousands of neurons.
Computerized Tomography
Many x rays taken of the brain put into one image
Positron Emission Tomography
Person is injected with a harmless radioactive tracer which can be tracked to measure blood flow
Magnetic resonance imaging (MRI)
Used to measure biological structures by measuring magnetic pulses
Functional magnetic Resonance Imaging(fMRI)
attempts to measure neural activity by detecting changes in hemoglobin
Brain stem(medulla)
Heart and respiration
Brain stem(Pons)
regulate sleep, dreaming and respiration
Cerebellum
muscular movement
Thalamus(forebrain)
routes sensory information, acts like a sensory switchboard
Basal ganglia(forebrain)
controls voluntary muscle movement, plays a role in learning/rewards