PSYCH 3320 Exam 1 Unit 7: research studies and pathways review

what did O’Doherty et al. (2000) study

sensory-specific satiety

what was the procedure in O’Doherty et al. (2000)

participants ate bananas to satiety, rated food pleasantness before and after, and completed task-based fMRI

what happened to banana ratings after eating

bananas changed from pleasant to unpleasant

what happened to vanilla ratings after eating bananas

vanilla became less pleasant but remained positively rated

what happened to OFC activity for bananas

OFC activation decreased after participants ate bananas

what was the main conclusion of O’Doherty et al. (2000)

consuming a food to satiety reduces its pleasantness and changes OFC activity

what did O’Doherty et al. (2001) study

brain representations of pleasant and aversive tastes

what stimuli were used in (2001)

glucose, salt, and a tasteless control

how many participants were in (2001) study

seven adults

what brian areas responded to taste without specificity

the insula and frontal operculum

what brain areas distinguished pleasant and aversive tastes

different areas of the OFC and amygdala

what did Plassmann et al. (2008) study

expectation effects

What did Barnett-Cowan (2010) study

how haptic cues from the hands influence pretzel perception

what five things should you know about every research study

the participants, stimuli, measures, general method, and conclusion supported by the results

what is the touch pathway

touch receptors → medulla → VPL → S1

what is the pain pathway

nociceptors → spinal cord → VPL → S1

what is the taste pathway

taste cells → NST → VPM → insula

what is the smell pathway

olfactory receptor cells → olfactory bulb → piriform cortex and other olfactory areas

where does the touch pathway cross the midline

after the medulla and before the thalamus

where does the pain pathway cross the midline

in the spinal cord

what does DCML carry

touch information

what does STT carry

pain and temperature information