Save
Busy. Please wait.
Log in with Clever
or

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever
or

Username is available taken
show password

Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Question

the sensations caused by mechanical displacement of the skin
click to flip
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know

Question

perception of the position and movement of our limbs in space
Remaining cards (41)
Know
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

S&P Ch 13

QuestionAnswer
the sensations caused by mechanical displacement of the skin touch
perception of the position and movement of our limbs in space kinesthesia
perception mediated by kinesthetic and internal receptors proprioceptors
collectively, sensory signals from the skin, muscles, tendons, joints, and internal receptors somatiosensation
wide-diameter, myelinated sensory nerve fibers ◦ Transmit signals from proprioceptive receptors in muscles and tendons a-alpha fibers
(slightly less) wide-diameter, myelinated sensory nerve fibers ◦ Transmit signals from mechanical stimulation a-beta fibers
intermediate-sized, myelinated sensory nerve fibers ◦ Transmit pain and temperature signals a-delta fibers
narrow-diameter, unmyelinated sensory nerve fibers ◦ Transmit pain and temperature signals c-fibers
what are the 4 types of nerve fibers? a-alpha, a-beta, a-delta, C fibers
sensory receptors that respond to mechanical stimulation (pressure, vibration, movement); connect to a-beta fibers ◦ Include SA I (Merkel), FA I (Meissner), SA II (Ruffini), and FA II (Pacinian) mechanoreceptors
sensory receptors that play an important role in sense of where limbs are, what kinds of movements are made ◦ Connect to A-alpha fibers and A-beta fibers kinesthetic receptors
sensory receptors that signal information about changes in skin temperature ◦ Include warmth fibers and cold fibers ◦ Connect to A-delta fibers and C fibers thermoreceptors
sensory receptors that respond to painful input, such as extreme heat or pressure ◦ Connect to A-delta fibers and C fibers nociceptors
what are the 4 classic categories of discriminative touch? tactile, thermal, pain, itch
each fiber type from the skin codes a particular touch sensation labelled lines
carries most of the information about skin temperature and pain (slower) spinothalamic pathway
carries signals from skin, muscles, tendons, and joints (faster) dorsal column-medial lemniscal (DCML) pathway
maplike representation of regions of the body in the brain homunculus
the impression of our bodies in space bosy image
pain sensations are triggered by ____ nociceptors
a region of the brain associated with the perceived unpleasantness of pain sensations anterior cingulate
a region of the brain concerned with cognition and executive control; may contribute to pain sensitization prefrontal cortex
a description of the system that transmits pain that incorporates modulating signals from brain; bottom-up pain signals from nociceptors can be blocked via a circuit located in spinal cord; neurons in dorsal horn actively inhibit pain transmission gate control theory
decreasing pain sensation during conscious experience analgesia
a heightened response to a normally painful stimulus hyperalgesia
decreasing pain sensation when people think they’re taking an analgesic drug but actually are not placebo effect
increasing pain sensation when people expect pain nocebo effect
sensation perceived from a physically amputated limb of the body phantom limb
the ability of neural circuits to undergo changes in function or organization as a result of previous activity neural plasticity
the minimum distance at which two stimuli are just perceptible as separate two-point threshold
knowledge of the world that is derived from sensory receptors in skin, muscles, tendons, and joints, usually involving active exploration ◦ For instance, aligning the arrows and opening a child-proof aspirin bottle in the dark haptic perception
geometric properties of objects are most important for visual recognition the "what" system of touch
the inability to identify objects by touch; caused by lesions to parietal lobe tactile agnosia
knowing where objects are in the environment using only touch perception the "where" system of touch
the coordinate system used to define locations in space frame of reference
the center of a reference frame used to represent locations relative to the body egocenter
any of the specialized detectors of angular motion located in each semicircular canal in a swelling called the ampulla thermoTRP
a region at the rear of the spinal cord that receives inputs from receptors in the skin dorsal horn
referring to spatial mapping in the somatosensory cortex in correspondence to spatial events on the skin somatotopic organization
a system that attempts to closely mimic biological signals biomimetic feedback
in reference to spatial attention, a form of top-down (knowledge-driven) control in which attention is voluntarily directed toward the site where the observer anticipates a stimulus will occur endogenous
in reference to spatial attention, a form of bottom-up (stimulus-driven) attention reflexively (involuntarily) directed toward the site at which a stimulus has abruptly appeared exogenous
Created by: abbeysmith20122
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards