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35 Cards in this Set
- Front
- Back
List of Neurotransmitters
(5) |
Acetylcholine
Catecholamines (DA, NE, 5-HT) GABA Glutamate Endorphins |
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Function of ACh
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NT involved in REM sleep
regulation of sleep-wake cycle & memory *Alzheimer's = low |
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Function of Catechcholamines
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personality, mood, memory, and sleep
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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 |
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Function of GABA
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NT that is inhibitory linked to eating, sleep, seizure, & anxiety D/O
*Huntington's disease motor functions |
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Function of Glutamate
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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. |
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Function of Endorphins
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inhibitory, pain relief, pleasurable experiences that control of emotions, memory and learning, and sexual bx
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5 main stages of brain development
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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 |
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PNS
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nerves that relay messages btw CNS and organs, muscles, & glands
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Somatic nervous system
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sensory nerves that carry info from senses to CNS
*voluntary |
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autonomic nervous system
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system responsible for viseral functions (heart rate, blood press, respiration, digestion, sweating)
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parasympathetic branch
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conservation of energy & relaxation, slow heart rate, low blood press, contract pupils, reduce sweat, increase digestive system
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sympathetic branch
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fight or flight: increase heart rate, pupil dilation, increase blood sugar, inhib digestion
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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 |
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reticular activating system
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consiousness, arousal, and wakefulness
DAMAGE = sleep-wake cycle, coma-like state of sleep |
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thalamus
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relay station--transmits sensory info to cortex; motor activity, language, & memory
*Korsakoff syndrome |
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Hypothalamus
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part of brain resp. for hunger, thirst, sex, sleep, body temp, movement, and emotional reactions
*uncontrollable laughter, intense rage, and aggression |
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suprachiasmatic nucleus (SCN)
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in the hypothalamus and mediates sleep-wake cycle and circadian rhythms
*Seasonal Affective D/O |
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basal ganglia
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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 |
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Limbic system
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Part of brain that mediates emotion
(Amygdala & Hippocampus) |
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Amygdala
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integrates, coordinates, and directs motivational & emotional activities, attaches emotions to memories, recall of emotional experiences
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Hippocampus--functions
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part of brain for learning and memory; processing spatial, visual, and verbal information,
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Frontal Lobe
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motor, premotor, and prefrontal
control of voluntary mvmts (fingers, lips, jaw) |
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Broca's area
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speech production
Damage: expressive aphasia- difficulties in producing spoken and written language |
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prefrontal cortext
function & damage |
emotion, memory, self-awareness
Damage= personality change-- pseudodepression & pseudopsychopathology; cognitive problems inc. abstract thinking, planning, decision making, perseveration, & order |
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Parietal Lobe
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sensory motor cortex, pressure, temp, pain, proprioception, & gustation
*apraxia, tactile agnosia, anosognosia |
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Temporal Lobe
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auditory cortex, auditory sensation & perception
*auditory agnosia, auditory hallucinations, Wernickes's--language comprehension & production |
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Occipital Lobe
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visual cortex- visual perception, recognition, & memory
*visual agnosia-inability to recognize familiar objects; prosopagnosia-inability to rec. familiar faces |
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Temporal Lobe:
Learning & Memory |
encoding, storage, & retrieval of LT declarative memories
*removal of right lobe = deficits in nonverbal memory tasks left = verbal memory |
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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 |
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Amygdala:
Learning & Memory |
conditioning, learning reward & punishments, adding emotion to memories
*recall of trauma (PTSD) |
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Prefrontal Cortex:
Learning & Memory |
short-term memory (esp. working memory), episodic memory, and prospective memory
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Thalamus:
Learning & Memory *damage results* |
processing information and transfering to neocortex
*memory loss, anterograde & retrograde amnesia, and confabulation (Korsakoff's) |
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Basal Ganglia, Cerebellum, and Motor Cortex:
Learning & Memory |
3 parts of the brain that control procedural memory and implict (unconscious) memory
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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
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