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Exam 1 Review
Chapter 2
41
Psychology
Undergraduate 1
10/07/2008

Additional Psychology Flashcards

 


 

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Term
Neuron
Definition
highly specialized cell that communicates information in electrical and chemical form; a nerve cell
Term
Glial Cells
Definition
support cells that assist neurons by providing structural support, nutrition, and removal of cell wastes; manufacture myelin.
Term
Sensory Neuron
Definition
type of neuron that conveys information to the brain from specialized receptor cells in sense organs and internal organs.
Term
Motor Neuron
Definition
type of neuron that signals muscles to relax or contract.
Term
Interneuron
Definition
type of neuron that communicates information from one neuron to the next
Term
Cell Body
Definition
processes nutrients and provides energy for the neuron to function; contains the cell's nucleus; also called the soma
Term
Dendrites
Definition
multiple short fibers that extend from the neurons cell body and receive information from other neurons or from sensory receptor cells.
Term
Axon
Definition
the long, fluid filled tube that carries a neurons messages to other body areas.
Term
Myelin Sheath
Definition
a white, fatty covering wrapped around the axons of some neurons that increases their communication speed.
Term
Action potential
Definition
a brief electrical impulse by which information is transmitted along the axon of a neuron
Term
stimulus threshold
Definition
the minimum level of stimulation required to activate a particular neuron.
Term
resting potential
Definition
state in which a neuron is prepared to activate a particular neuron
Term
cortical localization
Definition
localization of function, the idea that particular areas of the human brain are associated with particular functions
Term
Broca's Area
Definition
located in teh lower frontal lobe. Invovled in the production of speech
Term
Wernicke's Area
Definition
found in the temporal lobe, is important in the comprehension of written or spoken language.
Term
Aphasia
Definition
the partial or complete inabiclity to articulate ideas or understand spoken or written language because of brain injury or damage.
Term
lateralization of function
Definition
the notion that one hemisphere exerts more control over or is more involved int he processing of a particular psychological function
Term
Split Brain Operation (73)
Definition
Roger Sperry used this technique
Term
Left-Hemisphere Dominance (74)
Definition
words letters; language sounds; verbal memory; speech grammar rules reading writing arithmetic
Term
Right-Hemisphere Dominance (74)
Definition
Geometric patterns faces emotional expression; non language sounds music; nonverbal memory; emotional tone of speech; geometry sense of direction distance mental rotation of shapes.
Term
Functional Plasticity
Definition
the brain's ability to shift functions from damaged to undamaged brain areas
Term
Structural Plasticity
Definition
the brain's abilit to physically change its structure in response to learning, active practice, or environmental stimulation.
Term
Peripheral Nervous System
Definition
the other major divisions of your nervous system
Term
(PNS) Somatic Nervous System
Definition
Subdivision of the peripheral nervous system taht commmunicates sensory information to the central nervous system and carries motor messages from teh central nervous system to the muscles.
Term
(PNS) Autonomic Nervous System
Definition
subdivision of the PNS that regulates involuntary functions. (heartbeat, blood pressure, breathing, and digestion)
Term
(PNS) Sympathetic nervous system
Definition
branch of the autonomic nervous system that produces rapid physical arousal in response to perceived emergencies or threats. (when frightened: breathe heavy, heart beats fast, etc.)
Term
(PNS) Parasympathetic Nervous System
Definition
branch of the autonomic nervous system that maintains normal bodily functions and conserves the body's physical resources. (calms you down after an emergency: heart rate, breathing, and blood pressure level out)
Term
Positron emission Tomography (PET scam); (60)
Definition
an invasive imaging technique that provides color coded images of brain activity by tracking the brain's use of a radioactively tagged compound, such as glucose, oxygen, or a drug.
Term
Magnetic Resonance Imaging (MRI); (60)
Definition
a noninvasive imaging technique that produces highly detailed images of the brain using electromagnetic signals generated by the brain in response to magnetic fields.
Term
Functional magnetic resonance imaging (fMRI); (60)
Definition
a noninvasive imaging technique that uses magnetic fields to map brain activity by measuring changes in the brain's blood flow and oxygen levels.
Term
Cognitive Neroscience
Definition
the study of the neural basis of cognitive process that integrates contributions from psychology, neruosceince, and computer science.
Term
Frontal Lobe
Definition
the largest lobe of each cerebral hemisphere; processes voluntary muscle movements and is involved in thinking, planning, and emotional control.
Term
Parietal lobe
Definition
an area on each hemisphere of the cerebral cortex located above the temporal lobe that processes somatic sensations. (top middle)
Term
Occipital lobe
Definition
an area at the back of each cerebral hemisphere that is the primary receiving area for visual information (back)
Term
Temporal Lobe
Definition
an area on each hemisphere of the cerebral cortex near the temples that is the primary receiving area for auditory information. (bottom middle)
Term
Forebrain
Definition
uppermost and largest brain region composed of several structures;the most prominent being the cerebral cortex
Term
Cerebral cortex
Definition
divided into two hemispheres and responsible for sophisticated mental functions
Term
Corpus Callosum
Definition
thick band of axons connecting the two hemispheres of the cerebral cortex
Term
Midbrain
Definition
middle region of brain; invovled in processing visual and auditory information
Term
hindbrain
Definition
region at base of brain that connects the brain to the spinal cord
Term
Forebrain, Cerebral Cortex, Corpus Callosum, Hindbrain, Midbrain, Pons, Cerebellum, Reticular Information, Medulla (63)
Definition
Forebrain, Cerebral Cortex, Corpus Callosum, Hindbrain, Midbrain, Pons, Cerebellum, Reticular Information, Medulla (63)
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