Abrupt changes in interaural timing elicit cortical responses at 50, 100, and 175 ms
Evidence
Direct measures of ITD sensitivity, attributed to multiple generator sites in the thalamus and auditory cortex (Picton et al. 1974 ; Hari et al. 1980 ; Näätänen and Picton 1987 ; Liégeois-Chauvel et al. 1994 ), have been demonstrated in auditory-evoked ‘P1-N1-P2’ responses, with abrupt changes in either the ITD (e.g. McEvoy 1991 ), or the interaural correlation of a noise (e.g. Chait et al. 2005 ), eliciting responses with typical latencies of 50, 100, and 175 ms, respectively. — Dijk, Pim van, Physiology, Psychoacoustics and…, 2950
Categorization
Category: Factual Claims
- DEFINE: Names the P1-N1-P2 auditory-evoked response components and their typical latencies for binaural processing.
Related
- Abrupt ITD changes elicit auditory-evoked responses with distinct latencies (similarity 0.94)
- Abrupt sound changes elicit auditory P1-N1-P2 waves at 50, 100 and 175 ms (similarity 0.94)
- ITD sensitivity can be measured via auditory-evoked potentials using sound-onset changes (similarity 0.84)
- Abrupt interaural phase changes evoke P1-N1-P2 cortical responses (similarity 0.82)
- The ear detects binaural delays finer than individual neuron timing supports (similarity 0.81)
- Systematic conduction delay changes along the nucleus laminaris axis encode interaural time difference maps (similarity 0.80)
- Melodic pitch changes shorten rather than lengthen N1m peak latency in auditory cortex (similarity 0.80)
- Interaural time difference maps derive from precise phase delays, not absolute latencies (similarity 0.80)
- Slow IPD transitions evoke a classic P1-N1-P2 auditory evoked response in the EEG (similarity 0.79)
- Melodic notes trigger earlier and larger auditory cortex responses than tonic notes (similarity 0.79)
- Interaural time difference ranges roughly 0-700 microseconds across azimuth (similarity 0.79)
- Melodic auditory stimuli produce earlier N1m peaks than tonic stimuli (similarity 0.79)
- Listeners can discriminate interaural time differences of just tens of microseconds below 1.3 kHz. (similarity 0.79)
- Humans can detect interaural timing differences as small as ten to twenty microseconds (similarity 0.79)
- Just-noticeable interaural delay is about 50 microseconds below 1.5 kHz (similarity 0.79)