Abstract
To promote preattenive grouping of two sets of tones, one set of tones with a combination of frequency and ear of delivery was intermixed with another set of tones with a different combination of frequency and ear of delivery. The ERPs elicited by tones delivered to one ear that were preceded by three or four tones delivered in a row to the other ear were associated with an enhanced N1, due to the changes in frequency and ear of delivery with respect to the immediately preceding tones. However, no mismatch negativity (MMN) was obtained, even though these tones differed from the previious tones on the two dimensions of frequency and ear of delivery. The data were interpreted to signify that preattentively grouped sets of tones do not elicit MMN with respect to one another. This implies that once acoustic input has been preattentively grouped, the MMN system is dedicated to detecting changes that occur within but not between preattentively grouped stimuli.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 423-430 |
| Number of pages | 8 |
| Journal | Psychophysiology |
| Volume | 43 |
| Issue number | 5 |
| DOIs | |
| State | Published - Sep 2006 |
| Externally published | Yes |
Keywords
- Event-related potentials
- Mismatch negativity
- Preattentive processes
- Scene analysis
ASJC Scopus subject areas
- General Neuroscience
- Neuropsychology and Physiological Psychology
- Experimental and Cognitive Psychology
- Neurology
- Endocrine and Autonomic Systems
- Developmental Neuroscience
- Cognitive Neuroscience
- Biological Psychiatry