|
Dear Christian, and Daniel, This is starting to get interesting. What we showed is that the variance on these average consonant tests is so large as to render them somewhat uninteresting (my reading, and possible over interpretation of our results). You can decide for yourself if you do or dont like my conclusion. Ref 1 Age has nothing to do with it (Another personal opinion). Hearing loss, even with near- normal thresholds, has everything to do with it. A small hearing loss (30 dB at 6 kHz) can kill the very high performance, on a few consonants. (refs 3,4,5) We find that most consonants (80%) have zero error (1 error in 500 trials) down to 0 dB SNR, and a subset down to -10 dB SRN. (ref 2) Each consonant has a binary threshold which we call either SNR90 (or SNR50), SNR90 means the threshold for getting other than zero errors, 10% of the time. The probability correct is 90% at SNR-90. (refs 1 and 2) You can read about this in the following two papers: 1) Toscano, Joseph and Allen, Jont B (2014) Across and within consonant errors for isolated syllables in noise, Journal of Speech, Language, and Hearing Research, Accepted July 25, 2014; doi:10.1044/2014_JSLHR-H-13-0244, (JSLHR,pdf) http://auditorymodels.org/GEAR/Djvu/Toscano-Allen-JSLHR-2014.pdf 2) Riya Singh and Jont Allen (2012); "The influence of stop consonants’ perceptual features on the Articulation Index model," J. Acoust. Soc. Am., apr v131,3051-3068 (pdf) http://auditorymodels.org/GEAR/Djvu/SinghAllen12.pdf The Hearing loss results are here: 3) Trevino, Andrea and Allen, Jont B (2013). "Individual Variability of Hearing Impaired Consonant Perception," Seminars in Hearing, Guest Editor: Jason Galster PhD.; (pdf) 4) Trevino, Andrea C and Allen, Jont B (2012). "Within-Consonant Perceptual Differences in the Hearing Impaired Ear," JASA v134(1); Jul, 2013, pp 607--617 (pdf) 5) Allen, Jont B, Trevino, Andrea, Han, Woojae (2012); "Speech perception in impaired ears," Presentation at the AG Bell Research Symposium, Scottsdale AZ, Jul 1; (event,djvu,pdf,doc) If you get a login/passwd challenge, email me and I'll send it to you. Its a pretty simple password, that even could be guessed. Its only there to keep hackers out of my hair. Jont Allen On 04/13/2015 03:44 AM,
Oberfeld-Twistel, Daniel wrote:
Dear Christian, we recently tested a group of young normal-hearing participants in a "cocktail party listening" task with two spatially separated interfering speakers (http://dx.doi.org/10.13140/RG.2.1.1876.9448 or http://www.staff.uni-mainz.de/oberfeld/downloads/oberfeld_kloeckner_DAGA2015_549.pdf ). The speech identification performance was significantly correlated with an intensity discrimination task under backward masking, indexing auditory selective attention (e.g. http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0099745 ). Binaural TFS sensitivity also explained a significant portion of the variance. However, there was no sign. relation with the rea ding-span score. The data collection for a group of listeners aged 30-60 years will be completed end of April, will keep you updated... Best Daniel Privatdozent Dr. Daniel Oberfeld-Twistel Johannes Gutenberg - Universitaet Mainz Department of Psychology Experimental Psychology Wallstrasse 3 55122 Mainz Germany Phone ++49 (0) 6131 39 39274 Fax ++49 (0) 6131 39 39268 http://www.staff.uni-mainz.de/oberfeld/ https://www.facebook.com/WahrnehmungUndPsychophysikUniMainz-----Original Message----- From: AUDITORY - Research in Auditory Perception [mailto:AUDITORY@xxxxxxxxxxxxxxx] On Behalf Of Christian F�llgrabe Sent: Friday, April 10, 2015 3:26 PM To: AUDITORY@xxxxxxxxxxxxxxx Subject: Working memory (Reading Span) & Speech in noise Dear List, There is a growing body of evidence that working memory capacity is positively associated with speech-in-noise perception in listeners with hearing loss and when spanning a wide age range. In a recent study (Fullgrabe, Moore, and Stone, 2015), we found a significant correlation between consonant-in-noise or speech-in-speech identification and Reading-Span scores in an audiometrically normal-hearing group composed of young and older listeners. However, this correlation was no longer significant when the effect of age was partialled out or when only the older (60-79 years) listeners were entered into the correlational analysis. A review of the recent literature reveals that the results of those studies investigating this link in normal-hearing listeners (with the effect of age controlled for and using the Reading-Span test) are mixed (see Zekveld et al., 2011; Besser et al., 2012; Ellis and Munro, 2013; Kilman et al., 2014; Moradi et al., 2014; Zekveld et al., 2014; Stenback et al., 2015). Can anyone please point me to other publications on the topic of speech-in- noise perception and working memory capacity (as measured by the Reading- Span test) in young normal-hearing listeners I might have overlooked, or share his/her opinion, experience, unpublished data? Many thanks in advance for any pointers. Christian (christian@xxxxxxxxxxxxx) Christian Fullgrabe Senior Investigator Scientist MRC Institute of Hearing Research Nottingham NG7 2RD UK Email: christian@xxxxxxxxxxxxx Phone: 00 44 (0)115 922 34 31 This message and any attachment are intended solely for the addressee and may contain confidential information. If you have received this message in error, please send it back to me, and immediately delete it. Please do not use, copy or disclose the information contained in this message or in any attachment. Any views or opinions expressed by the author of this email do not necessarily reflect the views of the University of Nottingham. This message has been checked for viruses but the contents of an attachment may still contain software viruses which could damage your computer system, you are advised to perform your own checks. Email communications with the University of Nottingham may be monitored as permitted by UK legislation. |