Ch 6 Perception (Exam 2) Flashcards
1
Q
hierarchical organization moves from ____-_____ sensory neurons to _____-______ sensory neurons
A
- lower-order
- higher-order
2
Q
amplitude
A
- the size of the sound pressure wave from peak to trough
3
Q
hierarchy in auditory cortex
A
- primary auditory cortex
- secondary auditory cortex
- tertiary auditory cortex
- multimodal association cortex
4
Q
interaural time difference
A
- slight difference in sounds arrival time between the two ears
5
Q
coincidence detectors
A
- neurons fire only when signals from both ears arrive simultaneously
6
Q
hierarchy in somatosensory system
A
- primary somatosensory cortex
- secondary somatosensory cortex
- tertiary somatosensory cortex
- multimodal association cortex
7
Q
bottom-up processing
A
- stimulus driven, based on proximal stimulus entering perception
- feedforward connections
8
Q
top down processing
A
- driven by goals and expectations
- feedback connections
- depends on past experience, internal state, environmental context
9
Q
likelihood principle
A
- we perceive the world in a way that is “most likely” based on our past experiences
10
Q
interactive activation theory
A
- bottom-up and top-down processing are both necessary to explain perception
11
Q
cochlea
A
- spiral structure in inner ear
- important for transducing sound energy into the electrochemical signals of the nervous system
12
Q
dorsal root
A
- the sensory nerve fibers entering the spinal cord at a particular location
13
Q
frequency
A
- the number of high-low pressure cycles that occur per second in a sound wave
14
Q
interoception
A
- somatosensory feedback from inside the body
- allows individual to perceive the current state of the body
15
Q
loudness
A
- the perception of a sound’s amplitude
16
Q
middle ear
A
- three bones that transmit vibrations of the tympanic membrane to the oval window
17
Q
proprioception
A
- monitors the position and movement of one’s own body
