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62 Cards in this Set
- Front
- Back
Goal contemporary biological psychology is to study |
the link between biological activity and psychological events
ex. what areas of brain are responsible for ability to perceieve human faces? |
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Phrenology |
*assumption emotion, thoughts, are LOCALIZED IN DIFF PARTS OF BRAIN AREAS.
-popular but wrongheaded theory that claimed bumps on skull could reveal mental abilities and character traits like desire to have children
-ex. mark twain |
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Neural communication occurs with |
sensory neurons motor neurons |
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Sensory neurons |
carry messages from bodys tissues and sensory organs inward to brain and spinal cord for processing |
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Motor neurons |
carry messages from the brain and out to the bodys tissues |
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Donut example: |
-see donut -taken into brain by sensory neurons -gets kicked backed into motor neurons and thats why you drool & want it |
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Dendrites |
-receive messages from other cells -ears for cell body -get info and conduct into the cell body -ears that hear gossip |
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Axon |
-pass msg away from cell body to other neurons, muscles, or organs -the mouth that spreads gossip |
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Cell body |
the cell's life support center |
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Neural impulse |
-action potential -electrical signal traveling down the axon |
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Terminal branches of axon |
-end/tail of body -forms junctions with other cells |
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Myelin sheath |
-fluid covers axon so dont lose action potential -helps speed neural impulses -making connections (ex. baby roll, sit, crawl, walk, run)
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Acetylcholine (ACh) function and ex |
-enables muscle action, learning and memory
-alzheimers disese, ACh-producing neurons deteriorate (become worse) |
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Dopamine function and ex |
-influences movement, learning, attention, and emotion
-excess dopamine receptor activity = linked to schizophrenia. -starved dopa = decrease mobility of parkison's disease (old man who cant walk but ride bike) |
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Serotonin function and ex |
-affects mood, hunger, sleep and arousal
-under-supply = depression |
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What drug raises serotonin (depression levels) |
prozac |
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Main components to a neuron |
1. dendrites 2. axon 3. myelin sheath |
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Somatic nervous system |
-enables voluntary control of skeletal muscles -take notes so pick up pencil |
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Autonomic nervous system |
-controls our glands and the muscles of our internal organs -something that control your body automatically (heart beat) and you can override it by breathing slowly |
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Two systems of autonomic nervous system |
1. sympathetic system 2. parasympathetic system |
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Sympathetic system |
expands energy -- accelerates heart rate, raises blood pressure (fight or flight) |
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Parasympathetic system |
conserves energy -- decelerates heart rate, lowers blood pressure (rest and digest, calm down) |
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Example of somatic nervous system |
"i'm gonna take notes" -so picks up pencil -action |
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Transcranial magnetic stimulation |
procedure for inducing temporary lesions in which a magnetic field is passed over a particular brain region |
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2 neuroimaging techniques |
1. electroencephalogram (EEG) 2. functional magnetic resonance imagingin (fMRI) |
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Electroencephalogram (EEG) |
provides amplified tracings of waves of electrical activity in brain |
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Functional magnetic resonance imagingin (fMRI) |
detects changes in blood oxygenation in diff brain regions
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Ex of fMRI: |
Lying = more blood flow so you can see if they're lying or telling the truth by seeing how much blood there is in specific areas |
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2 hemispheres to brain are |
right and left |
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Amygdale is linked to |
emotion (mainly fear, aggression) |
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Hippocampus is linked to |
memory |
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Corpus callosum |
axon fibers connection two cerebral hemispheres |
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Thalamus |
-relays messages between lower brain centers and cerebral cortex -recieve info from all senese (EXCEPT SMELL) and routes it to higher brain regions (ex- eyes to cortical areas for vision) |
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Hypothalamus |
controls maintenance functions such as eating; helps govern endocrine system; linked to emotion and reward
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Pituitary |
master endocrine gland |
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Reticular formation |
-helps control arousal -filters incoming stimuli from spinal cord and relay info to other areas of brain |
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Medulla |
-controls heartbeat and breathing -controls involuntary functions (such as above) |
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Spinal cord |
pathway for neural fibers traveling to and from brain; controls simple reflexes |
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Cerebellum |
-coordinates voluntary movement and balance -"little brain" and is attached to rear of brainstem -plays role in learning motor skills |
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Cerebral cortex |
ultimate control and information processing center |
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Older brain structures drives (4) |
- the brainstem -the thalamus -the cerebellum -the limbic system |
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Limbic System contains (3) |
-amygdale -hippcampus -hypothalamus |
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Brainstem contain (2) |
-reticular formation -medulla
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What's the 4 "F's" that hypothalamus regulates |
1. fighting 2. fleeing 3. feeding 4. reproduction |
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The cerebral cortex mass, thick and is ... |
mass = 2/3 of brain total mass thick = 2mm deep layer extremely complex (convoluted) |
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4 lobes brain are divided into called |
1. occipital 2. temporal 3. parietal 4.frontal |
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4 lobes of brain separated by |
prominent fissures |
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occipital lobes invovles and contain |
-vision
-visual cortex |
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temporal lobes involves and containes |
- hearing, understand language, storing autobiographical memories
-auditory cortex |
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parietal lobes involves and contains |
-sensations of touch, pain, temperature
-somatosensory cortex |
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Wernickes Area |
-spans region between left temporal and parietal lobes -associated with processing of words that we hear being spoken or language inputs |
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frontal lobes invovles and contains |
-motor function, language, and memory
-executive functions |
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the parietal cortext or "sensory cortex" can receive info from |
skin surface and sense organs |
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Broca's area |
-frontal lobe, usually in left hemphisphere -associated with production of language or language outputs |
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the motor cortex is the rear at the rear of the .... that controls |
-frontal lobes -voluntary movements |
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Who mapped motor cortex in wide awake patients by stimulating different cortical areas and observing the bodys response? |
Wilder Penfield |
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What are found in all 4 lobes |
association areas |
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Association areas are responsible for |
integrating info, linking sensory inputs with stores memories (found in all 4 lobes) |
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Brocas areaand Wernickes area are connected by |
large bundle of nerve fibers called arcuate fasciculus |
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The brainstem is the ... and responsible for |
-oldest and innermost region of the brain -respsonsible for primitive functions like heart beat and breathing |
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Limbic system is associated with... and drives |
-emotions
-memory formations |
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Cerebral cortex is .... that... |
-convoluted mass
-enables higher-level functions, including perceiving, thinking, and speaking |