212 lec 1

fechner’s law

p= k x log(S/S0)

p fechner’s law

subjective perception

S fechner’s law

physical intensity of stimulus

S0 fechner’s law

absolute threshold of stimulus

absolute threshold

smallest perceivable intensity of a stimulus

k fechner’s law

controls steepness of function based on sensory modality

sensory modality

type of sense

rationalism

knowledge is gained through reason + logic

empiricism

knowledge is gained from sensory experience

inductive reasoning

draw conclusions from observations

deductive reasoning

draw conclusions from premises

cartesian dualism

rene descartes view that reality is both thinking self and material world

locke theory of ideas

info enters mind as simple ideas which are assembled into complex ideas (blue + triangle = blue triangle)

hume

beliefs are caused by psychological habits, we believe in cause and affect

kant critique of pure reason

some things exist independently from sensory experience, all we can know about things are the impressions they make on our senses

just noticeable difference

smallest perceivable difference between two stimuli

weber fraction

change in stimulus intensity to produce JND / original intensity

fechner’s panpsychism

everything material has mental aspect (opposes dualism)

transduction

stimulus interacts with receptor and causes neuron to fire electrical signal

action potential

rapid temporary electrical signal travelling along neuron

transmission/modulation

neural impulses sent to brain for processing

perception

selecting, organizing, interpreting sense-data