Coding of Sensory information

Question 1

Receptors are specialized by their morphology to respond to what?

Answer 1

Only one type of stimulus

Question 2

Specificity coding was proposed when?

Answer 2

The 1800s

Question 3

What was the opposing theory to Specificity Coding?

Answer 3

Patterns of stimuli, similar to Morse Code

Question 4

How does our nervous system discern light from sound, and touch from smell?

Answer 4

Specificity coding

Question 5

The intensity of a stimulus is directly related to what?

Answer 5

The Size of the receptor potential and the Number of receptors activited

Question 6

Intensity of a stimulus is then transfered to what?

Answer 6

The generation of an action potential

Question 7

Action potential is coded by what two things?

Answer 7

1. ) the frequency of the AP
2. ) number of discharge fibers

Question 8

A strong stimulus results in what 4 things?

Answer 8

1. ) A greater size of the receptor potential (depolarization)
2. ) A greater number of receptors being activated
3. ) Greater summation of the depolarizing events
4. ) Increased frequency of action potentials

Question 9

Does Frequency, Amplitude, or Speed change within action potentials regarding a strong stimulus?

Answer 9

Only Frequency