1 / 19

語調次發反應  音感聽力篩檢

語調次發反應  音感聽力篩檢. 鄭富城 ( Fuh-Cherng Jeng) Associate Professor Ohio University www.ohio.edu/people/jeng/ August 2, 2013. 語調音感的重要性 !. Electrophysiological measures in auditory research. What can evoked-potential measures tell us?. How can that information help the clinic?.

ginger
Download Presentation

語調次發反應  音感聽力篩檢

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. 語調次發反應 音感聽力篩檢 鄭富城 (Fuh-Cherng Jeng) Associate Professor Ohio University www.ohio.edu/people/jeng/ August 2, 2013

  2. 語調音感的重要性 !

  3. Electrophysiological measures inauditory research What can evoked-potential measures tell us? How can that information help the clinic? Why are normal-hearing infants used? evoked potential recording system listener acoustic stimulus + - time

  4. Background語調次發反應 (Frequency Following Response, FFR) • Follows the periodicity (i.e., frequency content) of the stimulus. • Phase locked to the periodicity of the stimulus f0 and harmonics • Originates from the brainstem area Period = 0.02 sec Frequency = 1/0.02 sec = 500 Hz Moushegian et al., 1973

  5. BackgroundRecent accomplishment • Pitch encoding at the human brainstem correlates with listeners’ linguistic experience. -Krishnan et al., 2005 • Musical training shapes brainstem encoding of linguistic pitch patterns. -Wong et al., 2007, Nature Neuroscience • Some Autism and SLI children show compromised pitch tracking accuracy. –Russo et al., 2008 • Pitch encoding at the brainstem is related with reading and speech-in-noise perception. –Hornickel et al., 2009

  6. 語調次發反應 Stimulus Response Control Jeng et al., 2011

  7. 美國國家科學院研究計劃 (2013 -2015)Dear baby, can you hear me?

  8. 美國 國家科學院研究計劃 (2013 -2015) Education Science www.pittstate.edu

  9. About Us • Dr. Jeng’s AEP lab • Dr. Jeng’s research

  10. Ohio University • Located in Athens, Ohio • 8,000 miles (12,500 kilometers) from Taichung, Taiwan

  11. Current Research • Questions • What are the characteristics of FFR to voice pitch in neonates (1-3 days old). • What are the contributions of our innate factors versus our language experiences on pitch processing at the human brainstem level • To answer these questions….

  12. How we feel about Taiwan

  13. Research in Taiwan • Now that we are here • Two teams • Team Taiwan and Team USA • One goal • Obtain FFR/MMN recordings from infants • One purpose • Assess the contributions of biological factors and language experience on pitch processing

  14. Methods • Collection and analysis of recordings from 120 infants over a 24 month time period • These infants will be assessed within 1-3 days of birth • Potential follow up includes an additional session at 3 months and a final session at 6 months

  15. Project 1: Neonates Goals and Hypotheses • Goals • Investigate the characteristics of FFR to voice pitch in neonates (1-3 days old). • Examine the relative contributions of the “biological capacity” versus “linguistic experience” influences on pitch processing at the human brainstem and cortical levels. • Hypotheses • Based on the “biological capacity” model, neonates will demonstrate accurate processing of voice pitch during the first few days after birth. • Based on the “linguistic experience” model, enhancement of the FFR to voice pitch will be expected as a result of exposure to a specific language environment.

  16. Schedule • 18 days left in Taiwan • Familiarize team members in Taiwan with our equipment • Training team members in Taiwan to obtain FFR/MMN recordings from infants using our equipment • Have the trained team members begin data collection on infants and obtain quality recordings • Foster international relationships that will ensure a team approach • Remaining time will be spent • Continued collaboration and building of team chemistry • Data collection in the United States • Maintaining weekly contact to ensure both teams obtain high quality recordings to address the research questions • Data analysis

  17. Questions?

More Related