Principles Flashcards
how many synapses in auditory sensory pathways
5
how many synapses in visual sensory pathways
3
law of specific nerve energies
cortical destination of the impulse determines the sensory experience
sensory space
range of effective stimuli for a particular system (human ear can only hear a particular range)
relay station in the thalamas.
except for
olfaction
pasticity
neural mechanisms are modifiable - ADAPT TO CHANGES
noise
randomness that gets in the way of receiving signal
psychphysics
study of the relationship between physical stimuli and mental phenomena (quantitative measure of perceptual experience)
2 psychophysical methods
- method of adjustment - adjust the stimulus until you can see it
- method of constant stimuli - yes/no
sensory magnitude
measuring perceived intensity.
measured with; magnitude estimation technique (Ss rate various stimuli differing in intensity)
adaptation
prolonged exposure results in a decrease rate of firing