| Autor: |
Aleksandrov AA; Department of Higher Nervous Activity and Psychophysiology, Faculty of Biology and Soil Science, St. Petersburg State University, 7/9 Universitetskaya Bank, 199034 St. Petersburg, Russia., Starostina LV, Stankevich LN |
| Jazyk: |
angličtina |
| Zdroj: |
Neuroscience and behavioral physiology [Neurosci Behav Physiol] 2005 Feb; Vol. 35 (2), pp. 209-13. |
| DOI: |
10.1007/s11055-005-0015-3 |
| Abstrakt: |
We report here studies of the efficiency of recognition of short acoustic signals (11-30 msec) whose presentation did not produce mismatch negativity in evoked potentials in the human brain. Nonetheless, stimuli could still be recognized efficiently in these conditions; processing negativity disappeared from evoked potentials and the efficiency of recognition was significantly worsened on presentation of the shortest stimuli (11 msec). It is suggested that processing negativity also has a critical duration for acoustic signals, though this is significantly shorter than the minimum duration of stimuli needed for generating mismatch negativity. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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