Stimulus size is detected by the frequency of impulses generated; larger stimuli produce more frequent impulses, and the brain interprets stimulus intensity based on the number and types of neurons firing.
larger stimulus --> more impulses generated in a given time (greater frequency per receptor and more receptors) - different neurones have different threshold values - number and types of neurones that pass impulses used to determine stimulus size
| Front | How is stimulus size detected? |
|---|---|
| Back | larger stimulus --> more impulses generated in a given time (greater frequency per receptor and more receptors) - different neurones have different threshold values - number and types of neurones that pass impulses used to determine stimulus size |
Tags: nerves
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