transductionconverting ONE form of energy into ANOTHER
-receive, transform, deliverpsychophysicsstudy of the relationship between physical stimuli and our psychological experience of themabsolute thresholdthe weakest amount of stimuli needed to produce a sensation
-the stimuli that is detected 50% of the time
-humans and different species of animals have different onesdifference thresholdsmallest amount of difference in a stimulus you can detect; JND: just noticeable differencesubliminal perceptionbrief auditory or visual messages
-presented below absolute threshold
-so weak we do not notice them consciouslysignal detection theorylooks at how and when we detect presence of stimulus amid background stimulation
-based on experience, motivation, and alertness
-some stimuli can interfere with your ability to do certain taskssensory adaptation-our senses adjust to new stimulation
-typically we adjust to ¨one level¨ then notice deviations from that ¨level¨emotional adaptationcategories for theories of emotion
-physiological: responses within the body cause emotions
-neurological: brain activity causes emotional responses
-cognitive: thoughts form emotions
