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Primary motor cortex - frontal lobe
- control voluntary motor movement
Premotor area - frontal lobe
- where motor functions are organized before initiation
Prefrontal area -motivation and foresight to plan and initiate movement
Descending Tracts Project from upper motor neurons in cerebral cortex to lower motor
neurons in spinal cord and brainstem
Descending Tracts Control different types of movements
Basal Nuclei -Group of functionally related nuclei
-Plan, organize, coordinate motor movements and posture
Corpus Striatum deep in cerebrum
Substantia Nigra A group of darkly pigmented cells in the midbrain
,Basal Nuclei Important in planning, organizing, and coordinating motor movement and
posture
Comparator sensing device that compares the data from two sources- motor cortex and
peripheral structures
Proprioceptive neurons innervate joints, tendons, and muscles, and provide information
about the position of body parts
Commissure connections between hemisphere
e.x: Corpus callosum
Sensory speech (Wernicke's area): - parietal lobe
- where words are heard and comprehended
Motor speech (Bronca's area): - frontal lobe
- where words are formulated
Electroencephalogram electrodes plated on scalp to record brain's electrical activity
Alpha waves wave produced when person is awake in quiet state
, Beta waves wave produced when a person is under intense mental activity
Delta waves wave produced when a person is in deep sleep
Theta waves waves usually observed in kids or adults experiencing frustrations
Encoding brief retention of sensory input received by brain while something is scanned,
evaluated, and acted up
Encoding - also called sensory memory
- in temporal lobe
- lasts less than a second
Consolidated - data that has been encoded
- temporal lobe
- short term memory
Storage - long term memory
- few minutes or permanently (depends onretrieval)
Retrieval how often info. is used