Question

Please match term with description. Answers may be used more than once or not at all.

a. High-threshold neurons

b. low-threshold neurons

c. frequency specificity

d. poststimulus time histograms

e. characteristic frequency

f. tuning curve

g. tonotopic array

h. crossed and uncrossed olivocochlear bundles

i. Interspike interval histogram

1. _____ This is the frequency to which a neuron is most responsive.

2. _____ This provides a means of determining the frequency response of a specific VIII nerve fiber.

3. _____ These respond at low signal levels and display random firing even when no stimulus is present.

4. _____ When stimulated this/these cause reduction in firing rate of VIII nerve fibers.

5. _____ These are plots of neural response relative to the onset of the stimulus.

6. _____ This is a composite of the responses of a single fiber at each frequency of stimulation.

7. _____ These require higher intensity before being stimulated to fire.

8. _____ This/These may process near-threshold sounds.

9. _____ This refers to the systematic low-to-high frequency relationship displayed throughout the auditory nervous system.

Answer 1

1. characteristic frequency

This is the frequency to which a neuron is most responsive.

2. characteristic frequency

This provides a means of determining the frequency response of a specific VIII nerve fiber.

3. low-threshold neurons

These respond at low signal levels and display random firing even when no stimulus is present.

4. low-threshold neurons

When stimulated this/these cause reduction in firing rate of VIII nerve fibers.

5. poststimulus time histograms

These are plots of neural response relative to the onset of the stimulus.

6. Interspike interval histogram

This is a composite of the responses of a single fiber at each frequency of stimulation.

7. High-threshold neurons

These require higher intensity before being stimulated to fire.

8. tonotopic array

This/These may process near-threshold sounds.

9. tuning curve

This refers to the systematic low-to-high frequency relationship displayed throughout the auditory nervous system.