Chapter 7,13,14 vocab Flashcards Preview

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Flashcards in Chapter 7,13,14 vocab Deck (330)
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1

Exteroceptive Sensory Systems

- Auditory, somatosensory, olfactory and gustatory systems

2

Primary Sensory Cortex

- The area of sensory cortex that receives most of its input directly from the thalamic relay nuclei of that system



3

Secondary Sensory Cortex

- Comprises the areas of the sensory cortex that receive most of their input from the primary sensory cortex of that system or from other areas of the secondary sensory cortex of the same system

4

Association Cortex

- Any area of the cortex that receives input from more than one sensory system
Most input comes from areas of secondary sensory cortex

5

Sensation

- Process of detecting the presence of a stimuli


6

Perception

- Higher-order process of integrating, recognizing, and interpreting complete patterns of sensations

7

Functional Segregation

- Organization into different areas, each of which performs a different functionDifferent areas of secondary and association cortex analyze different aspects of the same sensory stimulus (in sensory systems)

8

Parallel Systems

- Systems in which information flows through the components over multiple pathways

9

Parallel Processing

- In a parallel system—the simultaneous analysis of a signal in different ways by the multiple parallel pathways of a neural network

10

Binding Problem

- Multiple specialized areas, at multiple levels, are interconnected by multiple parallel pathways
Example: Each area of the visual system is specialized for perceiving specific aspects of visual system, yet complex stimuli are normally perceived as integrated wholes, not as combinations of independent attributes
The brains way of combining individual sensory attributes to produce integrated perceptions

11

Amplitude

- Loudness

12


Frequency

- Pitch

13

Complexity

- Timbre

14

Fourier Analysis

- Mathematical procedure for breaking down complex waves into their component sine waves (pure tones).

15

Fundamental frequency

- Related to pitch of sounds; The highest frequency of which the various component frequencies of a sound are multiples; A sound that is a mixture of 100, 200, 300 Hz—100 Hz is the highest frequency of which the three components are multiples

16

Missing Fundamental

- Pitch of a complex sound may not be directly related to the frequency of any of the sound’s components; Mixture of pure tones with frequencies of 200, 300, & 400 Hz would be perceived as having the same pitch as a pure tone of 100 Hz.—because 100 Hz is the fundamental frequency of those three frequencies.

17

Tympanic Membrane -

Ear drum

18

Ossicles

- Small bones of the middle ear

19

Malleus

- The mallet (an ossicle)


20

Incus

-The anvil (an ossicle)

21

Stapes

- A stirrup (an ossicle)

22

Oval Window


- The membrane that transfers vibrations from the ossicles to the fluid of the cochlea

23

Cochlea

- Long, coiled tube with an internal membrane running almost to its tip

24

Organ of Corti

- Internal membrane in the cochlea—auditory receptor organ

25

Hair Cells

- Auditory receptors

26

Basilar Membrane

- The membrane of the organ of Corti in which the hair cell receptors are embedded


27

Tectorial Membrane

- Rests on the hair cells (part of the organ of Corti)

28

Auditory Nerve

- A branch in the cranial nerve VIII—the auditory-vestibular nerve

29

Reitinotopic

- Organization of the visual system

30

Tonotopic

- Organization of the auditory system