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Title: Event-related potential study to aversive auditory stimuli. Author: Czigler I, Cox TJ, Gyimesi K, Horváth J. Journal: Neurosci Lett; 2007 Jun 15; 420(3):251-6. PubMed ID: 17556101. Abstract: In an auditory oddball task emotionally negative (aversive) sounds (e.g. rubbing together of polystyrene) and everyday sounds (e.g. ringing of a bicycle bell) were presented as task-irrelevant (novel) sounds. Both the aversive and the everyday sounds elicited the orientation-related P3a component of the event-related potentials (ERPs). In the 154-250 ms range the ERPs for the aversive sounds were more negative than the ERP of the everyday sounds. For the aversive sounds, this negativity was followed by a frontal positive wave (372-456 ms). The aversive sounds elicited larger late positive shift than the everyday sounds. The early negativity is considered as an initial effect in a broad neural network including limbic structures, while the later is related to the cognitive assessment of the stimuli and to memory-related processes.[Abstract] [Full Text] [Related] [New Search]