Brain Structures and Function (Abnormal Psychology)

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cerebellum
involved in implicit learning, reflex conditioning, timing, balancing, and coordinating movements
medulla
has role in controlling cardiac, respiratory, and blood pressure functions
Midbrain
relays sensory input for reflexes (orienting movements of the head)
includes the superior (visual) and inferior (auditory) colliculi
includes the ventral tegmental area (VTA) and the substantia nigra, both nuclei produce dopamine
thalamus
relays motor and sensory information b/w hemispheres and b/w cortex and brain stem, divided into many nuclei, each playing special roles (visual, auditory, motor)
hypothalamus
supports basic functions such as temperature regulations and the four Fs, controls the pituitary gland, regulating hormone release associated with behaviors and emotions
basal ganglia
motor nuclei that include the Caudate, Putamen, and Globus Pallidus; allows for the initiation and termination of movements and their force
limbic system:
circuitry involved in memory and emotion, formation of memories and their association with emotion
frontal
motor
parietal
touch and body position
temporal
memory, language, auditory
occipital
visual processing
acetylcholine
learning and memory
low: Alzheimer’s
drugs: Cognex (agonist, inhibits breakdown)
seratonin
regulation of mood and eating
low: depression
drugs: Prozac (reuptake inhibitor)
norepinephrine
alertness and wakefulness
low: depression
drugs: Elavil (reuptake inhibitor)
dopamine
motor control in basal ganglia
low: Parkinson’s
drugs: L-DOPA (promotes synthesis, agonist)
dopamine
reasoning and perception in limbic system
high: schizophrenia
drugs: Haldol (antagonist, blocks post-synaptic receptors
Categories: Abnormal Psychology