transduction
Sensory receptors translate physical stimuli into signals
absolute threshold
Min ammount of stimulation needed to detect a stimilus 50% of the time
webers law
bigger stimuli require larger differences to be noticed
sensory adaptation
if a stimulus does not change, receptions stop responding to it
you get used to teh stimilus over time
rods
helping to adapt to see in darker settings
cones
allows us to see details and colors in normal light
trichromatic theory
theory that color perception results from activity across three different types of cone receptors
bottom up and top down processing
bottom up: builds up perception from individual pieces of information
Top-Down: perception of stimuli is influenced by past experiencing
stroop effect
read the color of teh word, not what the word says
selective attention
directing mental resources to relevant information to process info further and ignore irrelevant info
natural selection
charles darwin
how things adapt to their environment
3 requirements for natural selection
variations in the trait
heritability (ability to pass it on)
selection
survival adaptations
The trait has to be more advantageous than disadvantageous
sexual selection theory
darwin
characteristics that confer mating advantage
intersex vs intrasex competetin
Intersex: one sex chooses a mate from the other sex
Intrasex: members of the same sex compete against one another
evolutionary mismatch
predjdice used to have an evolutionary mismatch
the things that looked different was often a predator
look like me, not like me
paternity confidence
confident that the child belongs to the man
helps to ensure confidence
life history theory
longer lifespans have fewer babies, shorter lifespans have more babies
