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Chapter 2
Neuroscience
28
Psychology
Undergraduate 1
12/12/2010

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Term
acetylcholine
Definition
a neurotransmitter involved in learning, memory, and muscle movement
Term
dopamine
Definition
a neurotransmitter involved in arousal and mood states, thought processes, and physical movement
Term
blood-brain barrier
Definition
a protective mechanism by which the blood capillaries supplying the brain create a carrier that prevents dangerous substances access to the brain
Term
serotonin and norepinephrine
Definition
neurotransmitters involved in levels of arousal and mood, sleep, and eating
Term
GABA
Definition
main inhibitory neurotransmitter in the nervous system. It is involved in lowering arousal and anxiety and regulating movement
Term
glutamate
Definition
the main excitatory neurotransmitter in the nervous system. It is involved in memory storage, pain perception, strokes, and schizophrenia
Term
endorphins
Definition
a group of neurotransmitters that are involved in pain relief and feelings of pleasure
Term
medulla
Definition
a brain stem structure involved in many essential body functions, such as heartbeat, breathing, blood pressure, digestion, and swallowing
Term
pons
Definition
a brain stem structure that serves as a bridge between the cerebellum and the rest of the brain and is involved in sleep and dream
Term
reticular formation
Definition
a network of neurons running up the center of the brain stem that is responsible for our different levels of arousal and consciousness
Term
cerebellum
Definition
a part of the brain involved in the coordination our movements, sense of balances, and motor learning
Term
thalamus
Definition
a part of the brain that serves as a relay station for incoming sensory information
Term
limbic system
Definition
a group of brain structures that play an important role in our survival, memory, and emotions
Term
basal ganglia
Definition
a part of the brain that is involved in the initiation and execution of movements
Term
hypothalamus
Definition
a part of the brain that is involved in regulating basic drives such as eating, drinking, and sex.
Term
hippocampus
Definition
a part of the brain involved in the formation of memories
Term
amygdala
Definition
a part of the brain that is involved in emotions by influencing agrgression, anger, and fear and by providing the emotional element of our memories and the interpretation of emotional expression in others
Term
cerebral cortex
Definition
the layers of inter-connected cells covering the brain's two hemispheres. This is the control and information-processing center for the nervous system; it is where perception, memory, language, decision making, and all the other higher-level cognitive processing occur
Term
corpus callosum
Definition
the bridge of neurons that connects the two cerebral hemispheres
Term
frontal lobe
Definition
the area in each cerebral hemisphere in front of the central fissure and above the lateral fissue. the motor cortex is in this lobe
Term
parietal lobe
Definition
the area in each cerebral hemisphere in back of the central fissure and above the lateral fissure. The somatosensory cortex is in this lobe
Term
temporal lobe
Definition
the area is each cerebral hemisphere located beneath the lateral fissure. The primary auditory cortex is in this lobe
Term
occipital lobe
Definition
the area located in the lower back of each cerebral hemisphere. The primary visual cortex is in this lobe
Term
motor cortex
Definition
the strip of cortex in each cerebral hemisphere in the frontal lobe directly in front of the central fissure, which allows us to move different parts of our body
Term
somatosensory cortex
Definition
the strip of cortex in each cerebral hemisphere in the parietal lob directly in back of the central fissure, which allows us to sense pressure, temperature, and pain in different parts of our body as well as the position of our body parts
Term
association cortex
Definition
all of the cerebral cortex except those areas devoted to primary sensory processing or motor processing. This is where all the higher-level cognitive processing that requires the association of information, such as perception and language, occurs
Term
Broca's area
Definition
an area in the cerebral cortex responsible for fluent speech production
Term
Wernicke's area
Definition
an areas in the cerebral cortex responsible for comprehension of speech and text
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