PSY312H5 Lecture Notes - Lecture 5: Optic Chiasm, Ganglion Cell, Sensory Neuron
Document Summary
Incoming sensory information, you adult developed person, able to detect 5 incoming sensations. Other vertebrates don"t rely on visual sensation as much. Third most important, involved in evolution, other vertebrates rely on olfactory (smell) Touch is a complex sense, because they are many touch receptors: pain, temperature, pressure, vibration. Vestibular system is right behind the ear, balance. Taking complex information and transducing it into meaningful information that is useful to you (thought- sophisticated and complex) Absolute threshold-- smallest strength of a stimulus that can be detected. Important because the sensory detectors that we have are really sensitive. Detect differences in colour, detect things that are really far away using visual system. Difference threshold; (jnd) smallest difference that can be detected. Infants are born legally blind, we rely on it so much as adults but it"s the least developed at birth. Transform light energy (protons) into an electrochemical neural response.
