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HSP - CH 14
Terms in this set (47)
discomfort caused by activation of specific receptors in the skin
discomfort caused by lesions or other damage to the nervous system
discomfort caused by damage to tissues, infection of joints, or tumor cells
structure that includes the cutaneous senses, proprioception, and kinesthesis
ability to perceive sensations that are based on the stimulation of receptors in the skin
sensing of the position of the limbs
sense that enables us to feel the motions and positions of the limbs and body
term for outer layers of the skin, including a layer of dead skin cells
layer of skin below the outer layers of the skin
cell that responds to mechanical stimulation of the skin, such as pressure, stretching, or vibration
cutaneous receptive field
area of skin that, when stimulated, influences the firing of a neuron
medial lemniscal pathway
large fiber pathway in the spinal cord that transmits touch signals from the skin toward the thalamus
small fiber nerve pathway that transmits pain and temperature signals from the skin to the thalamus
topographic map of the body in the somatosensory cortex
visual and tactile quality of a physical space created by peaks and valleys
information about the texture of a surface that is determined by its dimensions
information about a surface's texture provided by the rate of vibrations from touching that surface
situation in which a person receives tactile stimulation
sense of three-dimensional objects by touch
fiber that responds to stimuli that are damaging to the skin
direct pathway model of pain
idea that perceived injury occurs when skin receptors are stimulated and send signals to brain
person's continued perception of a body part even though it has been amputated
substance that a person believes will relieve symptoms but has no pharmacological effect
relief from symptoms resulting from a substance that has no pharmacological effect
negative response to negative expectations
multimodal nature of pain
fact that the experience of perceived injury has both sensory and emotional components
affective (emotional) component of pain
emotive experience associated with perceived injury, such as torturing, annoying, or sickening
chemical such as opium or heroin that reduces pain and induces feelings of euphoria
substance that inhibits the activity of opiates
chemical that is naturally produced in the brain and that causes analgesia
ability to share and vicariously experience what someone else is feeling
physical-social pain overlap hypothesis
proposal that injury from emotional experiences and bodily injury are processed by similar neural circuitry
smallest details that can be detected on the skin
Why is distraction used in the doctor's office?
b.To reduce the pain experienced by the patient.
Why do researchers think that distraction is an effective method when administering a medical procedure?
c.Because our limited attentional resources become devoted to the distraction (e.g., the video) rather than to the pain we are perceiving.
What effect does stimulating the Nociceptor have on the gate and the output of the T-cell?
a. It excites the T-cell and opens the gate.
What effect does central control have on pain perception?
a. It reduces pain perception by closing the gate.
Throbbing, prickly, hot and dull are to the _____ component of pain as torturing, annoying, frightful and sickening are to the _____ component of pain.
a. sensory; affective
Dr. Stone is a neuropsychologist who is testing the handgrip of a patient. Which mechanoreceptor is Dr. Stone testing?
b. Meissner corpuscle
The ability to share and vicariously experience someone else's feelings is called _____.
Brenda is putting lotion on her skin and as she applies the lotion, she can feel her skin stretching. Which mechanoreceptor is responsible for perceiving stretching of the skin?
c. Ruffini cylinder
Dr. Pressure is testing his patient's ability to detect details on the skin. He gently touches the points of a drawing compass to his patient's skin and has the person indicate whether he or she feels one point or two. What method is Dr. Pressure using?
a. two-point threshold
Fred is brushing his teeth using an electric toothbrush. The vibration makes his hand feel funny as he brushes his teeth. Which mechanoreceptor is responsible for Fred's feeling of vibration in his hand?
d. Pacinian corpuscle
Olivia is a toddler who is looking at a book full of textures. She is feeling the scratchy sandpaper page. According to the duplex theory of texture perception, she is relying on both _____ cues.
d. spatial and temporal
Josie and Madeleine are playing a game in which one person closes her eyes and the other gives the person with closed eyes an object to explore with her hands and then identify correctly. For the first round, Josie closes her eyes and Madeleine gives her an orange. As Josie explores the orange with her hands and fingers, she is engaging in _____.
a. haptic perception
Sylvester is participating in a study of the effects of pain medication. He is given a pill and then memorizes a lengthy poem. Whenever he makes a mistake in his recitation, he is given a mild electric shock. In fact, the pill he takes has no pharmacological action at all. It is a(n) _____.
Dr. Ouch studies various models of pain, and is currently focused on one proposing that pain occurs when nociceptor receptors in the skin are stimulated and send their signals directly from the skin to the brain. What model is this?
c. direct pathway model
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