Silent Spatialized Communication Among Dispersed Forces
Abstract
Research using EEG to discern imagined speech focused on speech loudness envelope reconstruction. Results show that one can use EEG to discern to which of two acoustic speech streams someone is attending. Further results with speech envelopes show that one can use EEG responses to speech loudness envelopes to determine which sentence among a set of possible sentence choices somebody hears or imagines. Work with MEG shows that imagined speech generates motor and auditory imagery as a likely consequence of feedback circuits in use during normal speech production. Imagined speech has its strongest effects on hearing speech presented immediately afterward, within a time-frequency window that regulates the comparison between prediction and feedback in speech. Work with fMRI suggests a model for speech prediction with a simulation/estimation stream, possibly involving sensorimotor cortex, and a memory-retrieval stream, possibly involving activity in inferior parietal cortex. Research on intended direction includes a study on the use of EEG to infer the location of covert visual attention in one and two dimensions of space using both visual and auditory stimuli.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 15, 2015
- Accession Number
- ADA623995
Entities
People
- Thomas M. D'zmura
Organizations
- University of California, Irvine