Term
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Definition
| the gap that exists between individual nerve cells |
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Definition
| the brain and spinal cord |
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Definition
| the long, thin cells of nerve tissur along which messages travel to and from the brain |
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Term
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Definition
| the chemicals released by neurons, which determine the rate at which other neurons fire |
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Term
| peripheral nervous system |
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Definition
| nerves branching beyond the spinal cord into the body |
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Definition
| a part of the brain that covers the brain's central core, responsible for sensory and motor control and the processing of thinking and language |
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Term
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Definition
| a machine used to record the electrical activity of large portions of the brain |
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Term
| positron emission tomography |
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Definition
| an imaging technique used to see which brain areas are being activated while performing tasks |
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Term
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Definition
| a part of the brain located at the rear base of the skull that is involved in the basic processes of life |
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Term
| magnetic resonance imaging |
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Definition
| a measuring technique used to study brain structure and activity |
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Term
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Definition
| they release epinephrine and norepinephrine into the bloodstream |
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Term
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Definition
| a chemical communication system, using hormones, bu which messages are sent through the bloodstream |
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Term
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Definition
| a gland in the endocrine system that produces several hormones, including thyroxine |
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Term
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Definition
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Term
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Definition
| the center of control of the endocrine system that secretes a large number of hormones |
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Term
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Definition
| twins who come from two different eggs fertilized by two different sperm |
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Term
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Definition
| the basic building blocks of heredity |
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Term
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Definition
| the gentic transmission of characteristics from parents to their offspring |
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Term
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Definition
| twins who come from one fertilized egg; twins having the same heredity |
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Term
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Definition
| nature-inherits, nurture-environmental |
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Term
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Definition
| a state of awareness, including a person's feelings, sensations, ideas, and perceptions |
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Term
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Definition
| a stage of sleep characterized by rapid eye movements, a high level of brain activity, a deep relaxation of the muscles, and dreaming |
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Term
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Definition
| the rhythm of activty and inactivity lasting approximately one day |
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Term
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Definition
| the failure to get enough sleep at night in order to feel rested the next day |
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Term
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Definition
| a sleep disorder in which a person has trouble breathing while asleep |
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Term
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Definition
| a condition characterized by suddenly falling asleep or feeling very sleepy during the day |
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Term
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Definition
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Term
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Definition
| sleep disruptions that occur during Stage IV of sleep, involving screaming, panic, or confusion |
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Term
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Definition
| walking or carrying out behaviors while asleep |
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Term
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Definition
| a state of consciousness resulting from a narrowed focus of attention and characterized bu heightened suggestibility |
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Term
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Definition
| a suggestion made during hypnosis that influences the participant's behavior afterward |
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Term
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Definition
| the process of learning to control bodily states with the help of machines monitoring the states to be controlled |
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Term
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Definition
| the focusing of attention to clear one's mind and produce relaxation |
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Term
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Definition
| chemicals that affect the nervous system and result in altered consciousness |
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Term
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Definition
| the dried leaves and flowers of Indian hemp that produce an altered state of consciousness when smoked or ingested |
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Term
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Definition
| perceptions that have no direct external cause |
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Term
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Definition
| drugs that often produce hallucinations |
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Term
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Definition
| a potent psychedelic drug that produces distortions of perception and thought |
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