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PSYC100-4
| Question | Answer |
|---|---|
| Biological Psychology | branch of psychology relating the link between biology and behavior |
| neuron | nerve cell; building block of nervous system |
| sensory neurons | carry incoming information from the sensory receptors to the brain and spinal cord |
| motor neurons | carry outgoing information from the brain and spinal cord to the muscles and glands |
| interneurons | neurons within the brain and spinal cord that communicate internally and intervene between the sensory inputs and motor outputs |
| dendrites | bushy, branching extensions of neuron that receive messages and conduct impulses toward the cell body |
| axon | extention of neuron, ending in branching terminal fibers, through which messages pass to other neurons to muscles or glands |
| myelin sheath | layer of fatty tissue segmentally encasing the fibers of neurons; enables great transmission speeds of neural impulses as the impulse hops from node to node |
| action potential | a neural impulse; brief electrical charge that travels down an axon |
| threshold | the level of stimulation required to trigger a neural impulse |
| synapse | junction between axon tip of the sending neuron and dendrite or cell body of receiving neuron |
| neurotransmitters | chemical messengers that travel across the synapse and bind to receptor sites on the receiving neuron, influencing neural impulse |
| reuptake | neurotransmitter's reabsorption by the sending neurons |
| endorphins | natural, opiatelike neurotransmitters linked to pain control and to pleasure |
| nervous system | electrochemical communication network; all nerve cells of the peripheral and central nervous systems |
| CNS | central nervous system; brain and spinal cord |
| PNS | sensory and motor neurons that connect the CNS to the rest of the body |
| Consciousness | awareness of ourselves and our environment |
| cognitive neuroscience | the interdisciplinary study of the brain activity linked with cognition |
| dual processing | the principle that information of often simultaneously processed on separate conscious and uncondcious tracks |
| selective attention | the focusing of conscious awareness on a particular stimulus; cocktail party effect |
| states of consciousness | sleeping, waking a various altered states |
| inattentional blindness | failing to see visible objects when our attention is directed elseware |
| change blindness | failing to notice change in the environment |
| circadian rhythm | biological clock, regular bodily rhythms that occur on a 34-hour cycle |
| REM Sleep | (rapid eye movement) a recurring sleep stage during which vivid dreams commonly occur |
| Alpha Waves | relatively slow brain waves from a relaxed, awake state |
| sleep | natural loss of consciousness |
| hallucinations | false sensory experimences, such as seeing something in the absence of an external visual stimulus |
| delta waves | large slow brain waves from deep sleep |
| insomnia | recurring problems with falling or staying asleep |
Created by:
adaaspire
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