Predicting visual stimuli on the basis of activity in auditory cortices.
Using multivariate pattern analysis of functional magnetic resonance imaging data, we found that the subjective experience of sound, in the absence of auditory stimulation, was associated with content-specific activity in early auditory cortices in humans. As subjects viewed sound-implying, but silent, visual stimuli, activity in auditory cortex differentiated among sounds related to various animals, musical instruments and objects. These results support the idea that early sensory cortex activity reflects perceptual experience, rather than sensory stimulation alone.
Meyer
Kaspar
K
Brain and Creativity Institute, University of Southern California, Los Angeles, California, USA. 5P50NS019632-25
Kaplan
Jonas T
JT
Essex
Ryan
R
Webber
Cecelia
C
Damasio
Hanna
H
Damasio
Antonio
A
D000465:Algorithms; D001303:Auditory Cortex / Q000502:physiology*; D001307:Auditory Perception / Q000502:physiology; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D015999:Multivariate Analysis; D010775:Photic Stimulation; D012815:Signal Processing, Computer-Assisted; D014741:Video Recording; D014796:Visual Perception / Q000502:physiology*