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Visual information constrains early and late stages of spoken-word recognition in sentence context
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In: ISSN: 0167-8760 ; International Journal of Psychophysiology ; https://hal.univ-lille.fr/hal-01911769 ; International Journal of Psychophysiology, Elsevier, 2013, 89 (1), pp.136--147. ⟨10.1016/j.ijpsycho.2013.06.016⟩ (2013)
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Auditory cortical activity in normal hearing subjects to consonant vowels presented in quiet and in noise.
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In: Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology, vol 124, iss 6 (2013)
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Spectral context affects temporal processing in awake auditory cortex.
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In: The Journal of neuroscience : the official journal of the Society for Neuroscience, vol 33, iss 22 (2013)
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Abstract:
Amplitude modulation encoding is critical for human speech perception and complex sound processing in general. The modulation transfer function (MTF) is a staple of auditory psychophysics, and has been shown to predict speech intelligibility performance in a range of adverse listening conditions and hearing impairments, including cochlear implant-supported hearing. Although both tonal and broadband carriers have been used in psychophysical studies of modulation detection and discrimination, relatively little is known about differences in the cortical representation of such signals. We obtained MTFs in response to sinusoidal amplitude modulation (SAM) for both narrowband tonal carriers and two-octave bandwidth noise carriers in the auditory core of awake squirrel monkeys. MTFs spanning modulation frequencies from 4 to 512 Hz were obtained using 16 channel linear recording arrays sampling across all cortical laminae. Carrier frequency for tonal SAM and center frequency for noise SAM was set at the estimated BF for each penetration. Changes in carrier type affected both rate and temporal MTFs in many neurons. Using spike discrimination techniques, we found that discrimination of modulation frequency was significantly better for tonal SAM than for noise SAM, though the differences were modest at the population level. Moreover, spike trains elicited by tonal and noise SAM could be readily discriminated in most cases. Collectively, our results reveal remarkable sensitivity to the spectral content of modulated signals, and indicate substantial interdependence between temporal and spectral processing in neurons of the core auditory cortex.
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Keyword:
Acoustic Stimulation; Algorithms; Animals; Auditory Cortex; Auditory Perception; Discrimination; Electrodes; Electroencephalography; Electrophysiological Phenomena; Implanted; Medical and Health Sciences; Neurology & Neurosurgery; Neurons; Psychological; Psychology and Cognitive Sciences; Saimiri; Wakefulness
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URL: https://escholarship.org/uc/item/0v38v9g7
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Atypical face processing in children with tuberous sclerosis complex.
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In: Journal of child neurology, vol 28, iss 12 (2013)
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Auditory artificial grammar learning in macaque and marmoset monkeys. ...
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Genetic mapping of brain plasticity across development in Williams syndrome: ERP markers of face and language processing.
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Cortical Signatures of Heard and Imagined Speech Envelopes
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In: DTIC (2013)
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Selectivity for visual speech in posterior temporal cortex ...
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Semantics, syntax or neither? A case for resolution in the interpretation of N500 and P600 responses to harmonic incongruities. ...
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Robust Multimodal Cognitive Load Measurement (RMCLM)
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In: DTIC (2013)
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Concreteness in word processing: ERP and behavioral effects in a lexical decision task.
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In: Brain Lang , 125 (1) pp. 47-53. (2013) (2013)
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The neurobiology of rhyme judgment by deaf and hearing adults: an ERP study.
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In: J Cogn Neurosci , 25 (7) pp. 1037-1048. (2013) (2013)
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Processing of hierarchical syntactic structure in music.
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In: Proc Natl Acad Sci U S A , 110 (38) 15443 - 15448. (2013) (2013)
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Outcomes following extracorporeal membrane oxygenation in children with cardiac disease.
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In: Pediatr Crit Care Med , 14 (5 Suppl 1) S73 - S83. (2013) (2013)
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Auditory artificial grammar learning in macaque and marmoset monkeys.
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Semantics, syntax or neither? A case for resolution in the interpretation of N500 and P600 responses to harmonic incongruities.
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Transcranial magnetic stimulation as a tool for understanding neurophysiology in Huntington's disease: a review.
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Investigation of the Utility of Center Frequency in Electroencephalographic Classification of Cognitive Workload Transitions
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In: Browse all Theses and Dissertations (2013)
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