PSYC340 Chapter Notes - Chapter 3: Auditory Hallucination, Oliver Sacks, Eardrum

• School: University of Delaware
• Department: Psychology
• Course: PSYC340
• Professor: Intraub Helen

Document Summary

Mechanical energy must be transduced into a neural impulse that goes to the part of a brain that encodes it into an experience sound: mental phenomenon. Altered states continued: sensory receptors transduce chemical / mechanical shift responsive to only a tiny part of the whole complexity and range of info in the world. Bold response (blood oxygen levels) during hallucination and reality. If areas are more active, they metabolize more rapidly, which requires more blood flow / oxygen. Mri picks up the change of blood flow to infer which part of the brain gets more active: give the participants a button; press when the voice starts and then stops. The test: ah (auditory hallucination) condition i(cid:374) (cid:862)(cid:373)ag(cid:374)et(cid:863) obtaining fmri data, results: average hallucination period was 9s, press key when hallucination spontaneously occurs, ai (auditory imagery) condition i(cid:374) (cid:862)(cid:373)ag(cid:374)et(cid:863) 3: received visual cue to imagine and for how long to match with hallucination group.