Psych Week 3
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Last updated 9:34 PM on 3/9/25
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39 Terms
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Occipital Lobes
Process visual information.
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Temporal Lobes
Involved in auditory processing, memory, and language comprehension.
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Wernicke’s Area
Responsible for language comprehension.
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Wernicke’s aphasia
Caused by damage to Wernicke’s Area, leading to difficulty understanding language and producing meaningful speech.
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Parietal Lobes
Process sensory information related to touch, spatial awareness, and body position.
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Somatosensory Cortex
Processes sensory input from the body, such as touch and temperature.
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Frontal Lobes
Involved in decision-making, problem-solving, personality, and voluntary movement.
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Motor Cortex
Controls voluntary movements.
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Broca’s Area
Responsible for speech production.
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Broca’s aphasia
Caused by damage to Broca’s Area, leading to difficulty speaking but intact comprehension.
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Corpus Callosum
Connects the two hemispheres of the brain and allows communication between them.
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Split-Brain Patients (left visual field)
Cannot verbally describe the image but can draw or select it with their left hand.
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Split-Brain Patients (right visual field)
Can verbally describe the image.
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Thalamus
Acts as a relay station for sensory information.
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Hypothalamus
Regulates hunger, thirst, body temperature, and hormones.
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Amygdala
Involved in processing emotions, especially fear and aggression.
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Hippocampus
Important for memory formation.
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Brain Stem
Regulates basic life functions like breathing, heart rate, and reflexes.
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Reticular Formation
Controls arousal and consciousness.
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Cerebellum
Coordinates balance, movement, and fine motor control.
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Circadian Rhythm
The body's internal 24-hour biological clock.
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Cortisol
Helps wake the body up in the morning.
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Melatonin
Helps the body fall asleep at night.
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Alpha waves
Brain waves present when awake but relaxed.
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Theta waves
Brain waves present in Stage 1 sleep.
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Sleep spindles and K-complexes
Brain waves present in Stage 2 sleep.
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Delta waves
Brain waves present in Stage 3 and 4 sleep (deep sleep).
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Beta waves
Brain waves present in REM sleep, similar to being awake.
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Sleepwalking
Occurs in Stage 3 or Stage 4 of sleep.
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Night terrors
Intense episodes of fear during sleep, occurring in Stage 3 or Stage 4.
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REM sleep
Occurs after deep sleep, with cycles increasing as the night progresses.
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Motor activity during dreams
Inhibited by the brainstem to prevent physical movement.
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REM sleep behavior disorder
Condition where people physically act out their dreams.
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Psychoanalytic Theory (Freud)
Says dreams reveal unconscious desires and conflicts.
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Information Processing Theory
Says dreams help process and store daily experiences.
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Activation-Synthesis Theory
Says dreams result from random neural activity that the brain attempts to make sense of.
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Cognitive effects of sleep deprivation
Include impaired memory, decreased attention, and poor decision-making.
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Emotional effects of sleep deprivation
Include increased stress, irritability, and higher risk of depression.
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Physical effects of sleep deprivation
Include weakened immune system, increased risk of obesity and heart disease.
Flashcards (31)