2014 Sensory Physiology

Example QuestionStimulus Location

Critical Fact IconAcuity: the ability to precisely localize a stimulus

 

1. RECEPTIVE FIELD SIZE:

  • the smaller the receptive field, the better the acuity

(see also the discussion of 2 point discrimination)

Receptive field size

2. RECEPTOR DENSITY:

  • the more receptors per receptive field, the better the acuity

  • generally, receptors are concentrated in the centre of the receptive field

Receptor density
Email: Dr. Janet Fitzakerley | ©2014 University of Minnesota Medical School Duluth | Last modified: 4-feb-14 8:26 PM