PSYC 100 Chapter Notes -Orbitofrontal Cortex, Logarithmic Scale, Rarefaction

• School: Queen's University
• Department: Psychology
• Course: PSYC 100
• Professor: Ingrid Johnsrude

Document Summary

The sensory quality experienced, such as from a sound, touch or light, depends on which nerve is stimulated, not on how it is stimulated. It is not the form of physical energy that determines the nature of the sensation but rather the specificity of the neurons, receptors and nerves activated by the stimulus. Our brain has no access to the physical stimulus itself. We"re not entirely sure, but we know that there are different codes that neurons can use. signal different qualitative features. The retina is a bit like a page scanner, in that every place on the scanner bed is sensitive to a different place on the page being scanned. The particular cells in the retina that are activated by a stimulus tell the organism where the stimulus is. Out there". single nerve cells, or a small group of cells, it is conveyed in the activity across a whole population a lot of cells.