Auditory middle latency responses (MLRs) were mapped on the cortical surface of the unanesthetized guinea pig. The MLR consists of two positive peaks, designated A and C, with latencies of approximately 11 and 29 msec respectively, and a negative trough B, at 18 msec. Results suggest that each MLR component appears to have different generator sites and specific stimulus-response characteristics. The present work suggests that positive MLR components A and C have different generator sources because each component was maximally recorded from a different location over the contralateral temporal lobe. Little MLR activity was evident outside an area roughly 4 mm × 4 mm for each component.
|Original language||English (US)|
|Number of pages||8|
|Journal||Electroencephalography and Clinical Neurophysiology/ Evoked Potentials|
|State||Published - Jan 1 1985|
ASJC Scopus subject areas
- Clinical Neurology