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35 Cards in this Set

  • Front
  • Back
List of Neurotransmitters
(5)
Acetylcholine
Catecholamines (DA, NE, 5-HT)
GABA
Glutamate
Endorphins
Function of ACh
NT involved in REM sleep
regulation of sleep-wake cycle & memory
*Alzheimer's = low
Function of Catechcholamines
personality, mood, memory, and sleep
Function of Serotonin
*high and low D/O
Inhibitory effect, hunger, mood, temp. regulation, sexual act., arousal, sleep, aggression,& migraine headache
*high = schizophrenia & autism
*low = depression, suicide, PTSD, OCD, and aggression
Function of GABA
NT that is inhibitory linked to eating, sleep, seizure, & anxiety D/O
*Huntington's disease motor functions
Function of Glutamate
NT that is excitatory, role in memory and learning, specifically long-term potentiation (LTM)
*excessive activity = seizure, stroke-related brain damage, Huntington's, Alzheimers, etc.
Function of Endorphins
inhibitory, pain relief, pleasurable experiences that control of emotions, memory and learning, and sexual bx
5 main stages of brain development
Proliferation: embryo about 2 1/2 weeks old
Migration: neurons move 8 weeks
Differentiation: axons & dendrites develop
Myelination: glial cells insulating sheath (postnatal)
Synaptogenesis: formation of synapses
PNS
nerves that relay messages btw CNS and organs, muscles, & glands
Somatic nervous system
sensory nerves that carry info from senses to CNS
*voluntary
autonomic nervous system
system responsible for viseral functions (heart rate, blood press, respiration, digestion, sweating)
parasympathetic branch
conservation of energy & relaxation, slow heart rate, low blood press, contract pupils, reduce sweat, increase digestive system
sympathetic branch
fight or flight: increase heart rate, pupil dilation, increase blood sugar, inhib digestion
function of cerebellum
*damage results in*
balance, posture, coordinated motor movements, sensorimotor functioning, aspects of cognitive functioning,
DAMAGE = Ataxia-slurred speech, severe tremors, loss of balance
reticular activating system
consiousness, arousal, and wakefulness
DAMAGE = sleep-wake cycle, coma-like state of sleep
thalamus
relay station--transmits sensory info to cortex; motor activity, language, & memory
*Korsakoff syndrome
Hypothalamus
part of brain resp. for hunger, thirst, sex, sleep, body temp, movement, and emotional reactions
*uncontrollable laughter, intense rage, and aggression
suprachiasmatic nucleus (SCN)
in the hypothalamus and mediates sleep-wake cycle and circadian rhythms
*Seasonal Affective D/O
basal ganglia
part of the brain involved in planning, organizing, & coordinating voluntary mvmt; stereotyped mvmts (smiling)
*Huntington's, Parkinson's, Tourette's, mania, depression, OCD, and psychosis
Limbic system
Part of brain that mediates emotion
(Amygdala & Hippocampus)
Amygdala
integrates, coordinates, and directs motivational & emotional activities, attaches emotions to memories, recall of emotional experiences
Hippocampus--functions
part of brain for learning and memory; processing spatial, visual, and verbal information,
Frontal Lobe
motor, premotor, and prefrontal
control of voluntary mvmts (fingers, lips, jaw)
Broca's area
speech production
Damage: expressive aphasia- difficulties in producing spoken and written language
prefrontal cortext
function & damage
emotion, memory, self-awareness
Damage= personality change-- pseudodepression & pseudopsychopathology; cognitive problems inc. abstract thinking, planning, decision making, perseveration, & order
Parietal Lobe
sensory motor cortex, pressure, temp, pain, proprioception, & gustation
*apraxia, tactile agnosia, anosognosia
Temporal Lobe
auditory cortex, auditory sensation & perception
*auditory agnosia, auditory hallucinations, Wernickes's--language comprehension & production
Occipital Lobe
visual cortex- visual perception, recognition, & memory
*visual agnosia-inability to recognize familiar objects; prosopagnosia-inability to rec. familiar faces
Temporal Lobe:
Learning & Memory
encoding, storage, & retrieval of LT declarative memories
*removal of right lobe = deficits in nonverbal memory tasks
left = verbal memory
Hippocampus:
Learning & Memory
consolidation of LT declarative memories (not storage), spatial memory
*chronic stress due to depression, poverty, or other may impair memory as a result of the effects of cortisol and other stress hormonones on the area
Amygdala:
Learning & Memory
conditioning, learning reward & punishments, adding emotion to memories
*recall of trauma (PTSD)
Prefrontal Cortex:
Learning & Memory
short-term memory (esp. working memory), episodic memory, and prospective memory
Thalamus:
Learning & Memory
*damage results*
processing information and transfering to neocortex
*memory loss, anterograde & retrograde amnesia, and confabulation (Korsakoff's)
Basal Ganglia, Cerebellum, and Motor Cortex:
Learning & Memory
3 parts of the brain that control procedural memory and implict (unconscious) memory
Amygdala: perception & expression of emotions, response to dangerous
situations
Hypothalamus: translate emotion to physical response
Cerebral Cortex: left = positive emotions; right = negative
Areas of the Brain that regulate emotion