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Reticular Formation
A nerve network in the brainstem that plays an important role in controlling arousal.
Motor Cortex
An area at the rear of the frontal lobes that controls voluntary movements
Sensory Cortex
The area at the front of the parietal lobes that registers and processes body sensations.
Impairment of language, usually caused by left hemisphere damage either to Broca's area or to Wernicke's area.
Broca's Area
Controls language expression- an area of the frontal lobe, usually in the left hemisphere, that directs the muscle movements involved in speech.
Wernicke's Area
Controls language reception- a brain area involved in language comprehension and expression; usually in the left temporal lobe.
The brain's capacity for modification, as evident in brain reorganization following damage (especially in children) and in experiments in brain development.
Split brain
A condition in which the two hemispheres of the brain are isolated by cutting the corpus fibers in between them.
The body's "slow" chemical communication system; a set of glands that secrete hormones into the bloodstream.
Chemical messengers, mostly those manufactured by the endocrine glands, that are produced in one tissue and affect another.
Adrenal Glands
A pair of endocrine glands just above the kidneys. The adrenals secrete the hormones epinephine and nonepinephrine which help to arouse the body in times of stress.
Pituitary Gland
The endocrine system's most influential gland. Under the influence of the hypothalamus, the pituitary regulates growth and controls other endocrine glands.
A neurotransmitter's reabsorption by the sending neuron
The formation of new neurons
Our awareness of ourselves and our environment
Cognitive Neuroscience
The interdisciplinary study of the brain activity linked with cognition (including perception, thinking, memory and language).
Dual Processing
The principle that information is often simultaneously processed on separate conscious and unconscious tracks.
A technique for revealing blood flow and therefore brain activity by comparing successive MRI scans. fMRI scans show brain function.

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