PMID- 33833720
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20210410
IS  - 1664-1078 (Print)
IS  - 1664-1078 (Electronic)
IS  - 1664-1078 (Linking)
VI  - 12
DP  - 2021
TI  - The Interaction Between Timescale and Pitch Contour at Pre-attentive Processing 
      of Frequency-Modulated Sweeps.
PG  - 637289
LID - 10.3389/fpsyg.2021.637289 [doi]
LID - 637289
AB  - Speech comprehension across languages depends on encoding the pitch variations in 
      frequency-modulated (FM) sweeps at different timescales and frequency ranges. 
      While timescale and spectral contour of FM sweeps play important roles in 
      differentiating acoustic speech units, relatively little work has been done to 
      understand the interaction between the two acoustic dimensions at early cortical 
      processing. An auditory oddball paradigm was employed to examine the interaction 
      of timescale and pitch contour at pre-attentive processing of FM sweeps. 
      Event-related potentials to frequency sweeps that vary in linguistically relevant 
      pitch contour (fundamental frequency F0 vs. first formant frequency F1) and 
      timescale (local vs. global) in Mandarin Chinese were recorded. Mismatch 
      negativities (MMNs) were elicited by all types of sweep deviants. For local 
      timescale, FM sweeps with F0 contours yielded larger MMN amplitudes than F1 
      contours. A reversed MMN amplitude pattern was obtained with respect to F0/F1 
      contours for global timescale stimuli. An interhemispheric asymmetry of MMN 
      topography was observed corresponding to local and global-timescale contours. 
      Falling but not rising frequency difference waveforms sweep contours elicited 
      right hemispheric dominance. Results showed that timescale and pitch contour 
      interacts with each other in pre-attentive auditory processing of FM sweeps. 
      Findings suggest that FM sweeps, a type of non-speech signal, is processed at an 
      early stage with reference to its linguistic function. That the dynamic 
      interaction between timescale and spectral pattern is processed during early 
      cortical processing of non-speech frequency sweep signal may be critical to 
      facilitate speech encoding at a later stage.
CI  - Copyright (c) 2021 Hsieh and Yeh.
FAU - Hsieh, I-Hui
AU  - Hsieh IH
AD  - Institute of Cognitive Neuroscience, National Central University, Taoyuan City, 
      Taiwan.
FAU - Yeh, Wan-Ting
AU  - Yeh WT
AD  - Institute of Cognitive Neuroscience, National Central University, Taoyuan City, 
      Taiwan.
LA  - eng
PT  - Journal Article
DEP - 20210323
PL  - Switzerland
TA  - Front Psychol
JT  - Frontiers in psychology
JID - 101550902
PMC - PMC8021897
OTO - NOTNLM
OT  - frequency modulated sweep
OT  - global
OT  - local
OT  - mismatch negativity
OT  - pitch contour
OT  - pre-attentive processing
OT  - timescale
COIS- The authors declare that the research was conducted in the absence of any 
      commercial or financial relationships that could be construed as a potential 
      conflict of interest.
EDAT- 2021/04/10 06:00
MHDA- 2021/04/10 06:01
PMCR- 2021/03/23
CRDT- 2021/04/09 06:26
PHST- 2020/12/03 00:00 [received]
PHST- 2021/02/17 00:00 [accepted]
PHST- 2021/04/09 06:26 [entrez]
PHST- 2021/04/10 06:00 [pubmed]
PHST- 2021/04/10 06:01 [medline]
PHST- 2021/03/23 00:00 [pmc-release]
AID - 10.3389/fpsyg.2021.637289 [doi]
PST - epublish
SO  - Front Psychol. 2021 Mar 23;12:637289. doi: 10.3389/fpsyg.2021.637289. eCollection 
      2021.