Psych 230 - Exam 1 (UIUC) Latest Update 2024 172 Questions and Verified Correct Answers Guaranteed A+
A-delta fibers - CORRECT ANSWER: myelinated nociceptors that conduct signals
rapidly and respond to both heat and pressure (quick, sharp pain)
absolute threshold - CORRECT ANSWER: the minimum intensity of stimulation that
must occur before you experience a sensation
Active exploration - CORRECT ANSWER: This (e.g. running your finger-tips over the object) allows you to differentiate between fine differences in texture (e.g. grades of sandpaper)
Addiction risk of chemical opioids - CORRECT ANSWER: painkillers and illegal drugs (high addiction rate, habit forming)
Ageusia - CORRECT ANSWER: inability to taste
Agnosia - CORRECT ANSWER: the inability to recognize familiar objects.
alien hand - CORRECT ANSWER: A disorder in which a person's hand has a mind of
its own and performs actions unconsciously. Occurs when the connection between right brain (irrational) and left brain (logical / rational) is cut.
analgesia - CORRECT ANSWER: process that act to reduce the conscious pain
experience (extreme survival)
Anarchic hand - CORRECT ANSWER: Complex goal-directed movements of a hand
that are performed against the patient's will
anosmia - CORRECT ANSWER: absence of the sense of smell
Anterior Cingulate Cortex (ACC) - CORRECT ANSWER: a region of the brain
associated with the perceived unpleasantness of a pain sensation
anterior insular cortex - CORRECT ANSWER: a part of the frontal lobe that serves as the primary taste cortex
Are there really five senses? - CORRECT ANSWER: No, there are around 7-12 senses (vision, hearing, smell, taste, light touch, pressure, cold, hot, pain, itch, vestibular, and proprioception)
Aristotle five sense - CORRECT ANSWER: believed that there were only 5 senses
(sight, smell, touch, 1 / 2
backward masking - CORRECT ANSWER: Presenting a stimulus, called the target, to
the participant and then covering, or masking, the target with another stimulus
Bitter - CORRECT ANSWER: No unique chemical (more than 30 diff receptors), poison detection, present in healthy food (greens), hormones (more sensitive to bitter when pregnant) --> lock and key
brain region related to the pleasant touch - CORRECT ANSWER: anterior prefrontal cortex
C fibers - CORRECT ANSWER: unmyelinated nociceptors responds to extreme heat,
cold, pressure (throbbing pain)
catch trials and their use - CORRECT ANSWER: catch trials are those in which no
signal is given. The use of a catch trial may help to estimate the level at which a participant is guessing when no stimulus is present
changes in criterion - CORRECT ANSWER: shift to left= value smaller and the
observer will respond that the signal is present more of the time (more false alarms) shift to right= value is larger and the observer will be less likely to respond that the signal was present (more correct rejections)
circumvallate papillae - CORRECT ANSWER: back of tongue; respond to all five basic tastes
cognitive habituation - CORRECT ANSWER: The psychological process by which, after long-term exposure to an odor, one no longer has the ability to detect that odor or has very diminished detection ability.
cold fibers - CORRECT ANSWER: fire in response to cold stimuli (30c and below)
Computation Approach - CORRECT ANSWER: studies of perception by trying to
specify the necessary computations the brain would need to perform in order to perceive the world
constructivist approach - CORRECT ANSWER: perception is constructed from both
senses and cognitive processes
correct rejection - CORRECT ANSWER: the signal is not presented and the participant does not detect it
criterion - CORRECT ANSWER: controlled by the observer
d prime - CORRECT ANSWER: The distance between the signal and the external
noise + signal.
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