AEPs at the onset and offset of repetitive sound modulation,due to mismatch with the contents of an auditory sensory store |
| |
| Institution: | 1. School of Psychology, Liaoning Normal University, Dalian, China;2. College of Preschool & Primary Education, Shenyang Normal University, Shenyang, China;3. School of Brain and Cognitive Science, Beijing Normal University, Beijing, China;4. Liaoning Collaborative Innovation Center of Children and Adolescents Healthy Personality Assessment and Cultivation, China;1. Department of Neurobiology and Biophysics, Vilnius University, Vilnius, Lithuania;2. Republican Vilnius Psychiatric Hospital, Vilnius, Lithuania;3. Translational Research Center, University Hospital of Psychiatry, University of Bern, Switzerland;1. Defence Research and Development Canada, Toronto Research Centre, Canada;2. Canadian Forces Health Services, Directorate of Mental Health, Ottawa, Canada;3. School of Psychology, University of Ottawa, Ottawa, Canada;4. Brain and Mind Institute, University of Ottawa, Ottawa, Canada;1. Neuropsychology Department, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, Av. Insurgentes Sur 3877, Col. La Fama, Mexico City 14269, Mexico;2. School of Psychology, Universidad Nacional Autónoma de México, Av. Universidad 3004, Mexico City 04510, Mexico;1. Sorbonne Universités, UPMC Univ Paris 06, Inserm, CNRS, Institut du Cerveau et de la Moelle épinière (ICM), Hôpital Pitié-Salpêtrière, Boulevard de l''hôpital, F-75013, Paris, France;2. Sorbonne Universités, UPMC Univ Paris 06 UMR S 1127, Inserm U 1127, CNRS UMR 7225, Institut du Cerveau et de la Moelle épinière, ICM, Ecole Normale Supérieure, ENS, Centre MEG-EEG, F-75013, Paris, France;3. Inserm, U1216, F-38000, Grenoble, France;4. Univ. Grenoble Alpes, Grenoble Institut des Neurosciences, GIN, F-38000 Grenoble, France |
| |
| Abstract: | Long latency auditory evoked potentials (AEPs), chiefly consisting of a negative peak at about 150 msec and a positivity at 250 msec, were recorded at the beginning and end of periods during which the interaural time difference of binaural noise was switched between 0.0 and 0.8 msec at a fast rate (ISI = 50 or 25 msec) or the frequency of continuous binaural clicks was switched between 167 and 200 Hz every 80, 50 or 25 msec. In the latter case the offset responses occurred later than onset by a mean of 89, 47 and 27 msec respectively, suggesting they were probably generated at the moment the next switch was expected but failed to occur.The offset responses must be non-specific with respect to the interaural delay or the frequency of clicks, since neurones which respond to particular delays or frequencies and are made refractory by a rapid rate of stimulation should not suddenly become less so at the last in a series of identical stimuli, or be activated by the absence of a further event. It is proposed that the potentials are due to a higher order of neurone which automatically responds to the occurrence of a “mismatch” between the immediate sound and an image of that which was previously present, encoded in a short-term sensory store. In addition to frequency content and interaural delay, the image must contain information about the temporal modulation pattern of the sound over the previous few seconds. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
