The nature of preattentive storage in the auditory system
Journal of Cognitive Neuroscience
Journal of Cognitive Neuroscience
Familiarity Affects the Processing of Task-irrelevant Auditory Deviance
Journal of Cognitive Neuroscience
Common Neural Basis for Phoneme Processing in Infants and Adults
Journal of Cognitive Neuroscience
Musical Training Enhances Automatic Encoding of Melodic Contour and Interval Structure
Journal of Cognitive Neuroscience
Journal of Cognitive Neuroscience
Abnormal Auditory Cortical Activation in Dyslexia 100 msec after Speech Onset
Journal of Cognitive Neuroscience
Linear Coding of Voice Onset Time
Journal of Cognitive Neuroscience
Journal of Cognitive Neuroscience
Instance-based acquisition of vowel harmony
SIGMORPHON '10 Proceedings of the 11th Meeting of the ACL Special Interest Group on Computational Morphology and Phonology
Journal of Cognitive Neuroscience
Enhanced passive and active processing of syllables in musician children
Journal of Cognitive Neuroscience
Specific neural traces for intonational discourse categories as revealed by human-evoked potentials
Journal of Cognitive Neuroscience
Journal of Cognitive Neuroscience
Hi-index | 0.00 |
The studies presented here use an adapted oddball paradigm to show evidence that representations of discrete phonological categories are available to the human auditory cortex. Brain activity was recorded using a 37-channel biomagnetometer while eight subjects listened passively to synthetic speech sounds. In the phonological condition, which contrasted stimuli from an acoustic /dæ/-/tæ/ continuum, a magnetic mismatch field (MMF) was elicited in a sequence of stimuli in which phonological categories occurred in a many-to-one ratio, but no acoustic many-to-one ratio was present. In order to isolate the contribution of phonological categories to the MMF responses, the acoustic parameter of voice onset time, which distinguished standard and deviant stimuli, was also varied within the standard and deviant categories. No MMF was elicited in the acoustic condition, in which the acoustic distribution of stimuli was identical to the first experiment, but the many-to-one distribution of phonological categories was removed. The design of these studies makes it possible to demonstrate the all-or-nothing property of phonological category membership. This approach contrasts with a number of previous studies of phonetic perception using the mismatch paradigm, which have demonstrated the graded property of enhanced acoustic discrimination at or near phonetic category boundaries.