Chapter 13 - Touch - Haptic Perception

Question 1

Haptic perception

Answer 1

Perceptual processing of inputs from many sensory subsystems

1. action for perception - active exploration of surroundings
2. perception for action - process of using sensory input to prepare us to interact

Question 2

Exploratory procedures

Answer 2

Particular way of feeling an object in order to learn about one or more of its properties
- FA11 afferetns respond to high frequency vibrations created while swiping fingers acorss rough surface

Question 3

Efficiency

Answer 3

Haptic search - equally efficient at searching for a target and identifying with distractors

3D search task - people are efficient at searching for shapes, response time increases with number of objects

patterns must balance the limitiations from the skin’s acuity and its field of view (braile)

Question 4

Haptic object recognition

Answer 4

vision is more effective for raised lines objects because sensory cues available

use computational models (past experiences) to stimulate the brain’s processing of tactile info

Question 5

haptic object localization

Answer 5

beyond the body create a frame of reference
on the body we’ve been doing forever