Sensation and Perception: Chapter 14
This flashcard set focuses on haptic perception and tactile processing, including how we use touch to identify object properties like shape, which body parts have the highest tactile acuity, and how mechanoreceptors respond to differences in surface curvature.
BobbyDale is asked to use haptic perception to identify a soccer ball. She will most likely use the exploratory procedure(s) of _______________ to identify the soccer ball’s exact shape.
enclosure and contour following
Key Terms
BobbyDale is asked to use haptic perception to identify a soccer ball. She will most likely use the exploratory procedure(s) of _______________ to identify the soccer ball’s exact shape.
enclosure and contour following
Which of the following body parts has the lowest two-point threshold?
fingertips
Mika touches a high-curvature stimulus and a lower-curvature stimulus with her fingertip. Which of the following best describes the firing of the mechanoreceptor fibers?
The receptors right at the point of contact respond the most and the ones further away fire less in both cases, but the pattern of firing is differ...
Which of the following is true regarding body mapping in the somatosensory cortex?
Body maps appear in S1 and S2
The demonstration in which you perceived the texture of a surface using your pen or another “tool” showed
that you can use vibrations to perceive the texture of the surface
Neuropathic pain : __________ :: Inflammatory pain: _______.
carpal tunnel syndrome; tumor cells
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| Term | Definition |
|---|---|
BobbyDale is asked to use haptic perception to identify a soccer ball. She will most likely use the exploratory procedure(s) of _______________ to identify the soccer ball’s exact shape. | enclosure and contour following |
Which of the following body parts has the lowest two-point threshold? | fingertips |
Mika touches a high-curvature stimulus and a lower-curvature stimulus with her fingertip. Which of the following best describes the firing of the mechanoreceptor fibers? | The receptors right at the point of contact respond the most and the ones further away fire less in both cases, but the pattern of firing is different for the two stimuli |
Which of the following is true regarding body mapping in the somatosensory cortex? | Body maps appear in S1 and S2 |
The demonstration in which you perceived the texture of a surface using your pen or another “tool” showed | that you can use vibrations to perceive the texture of the surface |
Neuropathic pain : __________ :: Inflammatory pain: _______. | carpal tunnel syndrome; tumor cells |
In most of our daily experience of touch, we are using | active touch |
Sensory component of pain : ________ :: emotional component of pain : ________. | throbbing; annoying |
Pokorny reduced the perceived pain for a burn victim by | presenting a virtual-reality “game” that involved chasing a spider and grinding the spider in a garbage disposal |
Jan is a right-handed violin player – she bows with her right hand and fingers the strings with her left. The cortical representation for the fingers on her left hand is | larger than the area for the fingers on the left hand of a non-musician |
Penfield mapped locations of body parts on area S1 by | stimulating S1 areas in humans, and asking where they felt body sensations |
Neurons in the monkey somatosensory cortex have been found that | respond only to stimuli of a specific orientation. |
The Meissner corpuscle is associated with | controlling handgrip |
The fibers from the medial lemniscal pathway and the spinothalamic pathway go to the | ventrolateral nucleus |
The function of the skin is | warning the individual of possible injury. |
The function of the skin is | warning the individual of possible injury. |
The area on S1 associated with the thumb is as large as the area for the forearm. This is an example of | cortical magnification |
The phenomenon of “phantom limb” is difficult to explain using the _______ of pain. | direct pathway model |
The density of the ______ on the fingertips than on the palms. | Merkel receptors are higher |
The _______ are located near the border of the epidermis and surface of the skin, and are associated with sensing fine details. | Merkel receptors |
The mechanoreceptors primarily responsible for feeling the vibrations from an electric toothbrush are _________ because these receptors contain an “onion-like” series of layers. | Pacinian corpuscles |
The fibers from the medial lemniscal pathway and the spinothalamic pathway go to the | ventrolateral nucleus |
endorphins | are morphine-like substances found in the body. |
Which if the following is an “exploratory procedure” identified by Lederman and Klatzky? | Enclosure |
Stroking a participants’ leg led to increased activation in S2. Interestingly, S2 activity also increased | when participants saw a video depicting someone stroking an office supply binder |
The receptive fields of cortical S1 neurons are | smaller for the fingers than the forearm |
Research by Derbyshire et al. (2003) showed that | hypnosis can affect pain perception, and the brain activity associated with pain |
Which of the following is NOT a mechanoreceptor? | chancellor cells |
The phrase “multimodal nature of pain” refers to | sensory and emotional components of pain |
When you try to identify a three-dimensional object by touch alone, and are allowed to have control over your hand and finger movements, you are using | haptic perception |
pain subjective intensity : :: pain unpleasantness: _. | Area S1; the ACC |
The Meissner corpuscle is associated with | center-surround receptive fields |
The nerve fibers in the spinal cord go in | both the medial lemniscal pathway and the spinothalamic pathway |
According to the gate control theory of pain, the ___ opens the pain gate by sending excitation to. | Nociceptors; Transmission cells |
Lucy, a heterosexual female, would be able to keep her hand immersed in cold water longer if she was | looking at pictures of attractive males |
Based on the finding that , it is believed that endorphins are linked to pain relief. | naloxone injections decrease the analgesic effect of endorphins and placebos |
Which of the following structures is not part of the pain matrix? | SEC |