Indiana University

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The Speech Research Laboratory is a part of the Psychological and Brain Sciences department at Indiana University in Bloomington.
1101 E. 10th Street
Bloomington, IN 47405
812-855-1768

Archive for September, 2013

30th Sep 2013

Speech Research Lab Meeting – Friday October 4 – Journal Club

For this week’s SRL meeting we are planning to have a journal club style discussion about a brand new paper entitled “Swinging at a Cocktail Party: Voice Familiarity Aids Speech Perception in the Presence of a Competing Voice.”  Click here to download, the abstract and citation is below. All are invited and are welcome to attend.

Where: Psychology Conference Room 128

When: Friday, October 4, 2013, 1:30pm

Johnsrude IS, Mackey A, Hakyemez H, Alexander E, Trang HP, and Carlyon RP. (2013) Psychological Science. Published online ahead of print.

Abstract: People often have to listen to someone speak in the presence of competing voices. Much is known about the acoustic cues used to overcome this challenge, but almost nothing is known about the utility of cues derived from experience with particular voices—cues that may be particularly important for older people and others with impaired hearing. Here, we use a version of the coordinate-response-measure procedure to show that people can exploit knowledge of a highly familiar voice (their spouse’s) not only to track it better in the presence of an interfering stranger’s voice, but also, crucially, to ignore it so as to comprehend a stranger’s voice more effectively. Although performance declines with increasing age when the target voice is novel, there is no decline when the target voice belongs to the listener’s spouse. This finding indicates that older listeners can exploit their familiarity with a speaker’s voice to mitigate the effects of sensory and cognitive decline.

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23rd Sep 2013

Speech Research Lab Meeting – Friday September 27 – Justin Aronoff

For this week’s SRL meeting we are happy to welcome Dr. Justin Aronoff, a new faculty member at University of Illinois in the Department of Speech and Hearing Sciences.  His research interests are focused on understanding how information from the left and right ear is combined and developing new techniques to improve bilateral cochlear implant user’s performance. The talk and abstract are provided below and a brief paper on a new test of spectral resolution will provide some background about his talk, download here.

Where: Psychology Room 128

When: Friday, September 27, 2013, 1:30pm

Title: Two ears are better than one: The benefits, limits, and possibilities of bilateral cochlear implants. 

Abstract: Having two ears greatly helps a listener localize the origin of a sound as well as understand speech in noisy environments such as a restaurant. For patients who have lost their hearing, getting a single cochlear implant can greatly help them understand speech in quiet environments, but they still have considerable difficulty localizing sounds and understanding speech in noisy environments. It is becoming more common for patients to be implanted with a cochlear implant in both ears (bilateral cochlear implants) in an effort to help them perform better in challenging listening tasks. This talk will discuss the benefits and limits of current bilateral cochlear implants and how the two implants can be coordinated to yield even better performance.

Visit his lab website for additional information about his research interests and publications: binauralhearinglab.shs.illinois.edu

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23rd Sep 2013

PRESTO Workshop – Wednesday October 9th – 2:00pm

Our PRESTO workshop is coming up soon, and we are looking forward to hearing how everyone has used the PRESTO sentence test in their research. Come and learn how PRESTO has been incorporated into research studies involving normal hearing participants, aging adults, hearing-impaired listeners, non-native English speakers, and pre- and post-lingually deafened cochlear implant users. Faculty, postdocs, and graduate students are encouraged to attend, particularly those from IU Speech and Hearing, Psychology, IUPUI, and Purdue.

The PRESTO workshop will be held on Wednesday afternoon, October 9th, following the conclusion of the Aging and Speech Communication meeting. The meeting will be held in the Psychology Building, just a few steps away from the Indiana Memorial Union where the ASC meeting is held.

Where: Psychology Building, Room 137C

1101 E. 10th Street,
Bloomington, IN 47405

When: Wednesday, October 9th, 2:00-5:30pm. 

For participants staying at the Indiana Memorial Union, parking is provided in the hotel parking lot. For other attendees, parking will be provided in the parking garage directly behind the Psychology building, adjacent to the Kelly School of Business. It is located on the corner of North Fee Lane and E 11th Street. Park and bring your ticket and it will be validated. Please email if you need additional parking instructions. IUPUI attendees can use their “A” parking permits in all IU garages and “B” permits can be used to park in the “C” lots.

For those presenting, please consider the following questions: *15-20 minute presentation, 10-15 minutes for discussion*

  1. How did you incorporate PRESTO into your research?
  2. What are your results with PRESTO in your chosen population(s)?
  3. Have these materials been helpful/useful, have you uncovered anything new?
  4. Have you experienced any challenges or problems using these materials?
  5. How do you plan to use the PRESTO in your future work?

Snacks and coffee will be provided, and we look forward to a lively discussion.

We’re looking forward to seeing everyone at the PRESTO workshop!

UPDATE: Schedule

When:       Wednesday, 2:00pm-5:30pm
Following the conclusion of the ASC meeting.

Where:      Psychology Building, Room 137-C

Steps away from the IMU, see map on next page.

Coffee and snacks will be provided.

 

Schedule:

2:00            Introduction and Welcome – David Pisoni

2:15-2:45   Pavel Zhorik – University of Louisville

2:45-3:15   Dan Fogerty – University of South Carolina

3:15-3:45   Nirmal Srinivasan – NCRAR (Portland) & UT-Dallas

3:45-4:15   Katie Faulkner – Indiana University

4:15-4:45   Terrin Tamati – Indiana University

4:45-5:15   Summary of other work by Team PRESTO (Bay Pines, Veterans Affairs Healthcare System-University of South Florida & University of Washington)

5:15-5:30   Wrap up – Future Directions

 

7:30pm     Dinner at Samira Restaurant

                  100 W 6th St, Bloomington, IN 47404

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19th Sep 2013

Speech Research Lab Meeting – Friday September 20 – Eriko Atagi

For this week’s SRL meeting Eriko Atagi, doctoral student in Speech and Hearing, will be giving a practice talk for an upcoming meeting. Her title and abstract are below, all are invited and welcome to attend – there will be plenty of time to give feedback on the content and suggestions for improvement.
Where: Psychology 128
When: Friday, September 20, 2013, 1:30pm
Title: Auditory free classification of nonnative speech
Abstract: Recent research on speech variability has found that listeners encode and integrate indexical features of speech (e.g., talker’s gender, age, dialect) with the linguistic information in speech. Furthermore, through repeated encoding, listeners build categories of indexical features (e.g., male/female, child/adult), similar to the categories of linguistic variables (e.g., phonemes and semantic classes). For English, a language that now has more nonnative speakers than native speakers across the world, foreign accents are indexical features that introduce a significant amount of between-talker variability. The auditory free classification task—a task in which listeners freely group talkers based on audio samples—has been a useful tool for examining listeners’ perceptual representations of regional dialects, and is employed in the current studies to examine native and nonnative listeners’ representations of nonnative speech. In this talk, I present two studies that address the following questions. (1) What are the salient features of nonnative speech for native listeners, and how stable is their perception across different stimulus sets? (2) Does listeners’ perception of nonnative speech change depending on whether they are asked about the general similarity of talkers or about the talkers’ native languages? (3) How does nonnative listeners’ perception of nonnative speech compare to that of native listeners? Results indicate that listeners—both native and nonnative—find nonnative talkers’ degrees of foreign accent to be a central organizational principle. Other listener and stimulus factors, however, also play important roles in further shaping listeners’ perception of nonnative speech. Specifically, I will discuss listeners’ attention to the talkers’ native language, listeners’ prior linguistic experience, and variability in the stimulus set as relevant factors when perceiving nonnative speech.

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11th Sep 2013

Speech Research Lab Meeting – Friday September 13 – Gary Kidd & Charles Watson

For this week’s SRL meeting we are pleased to welcome Dr. Gary Kidd and Dr. Charles Watson from the Department of Speech and Hearing Sciences. They will present on their work in the development and validation of an over-the-telephone hearing screening test that is being used all over the world. The title and abstract are below. Please click here to download a recent paper to provide additional background for the talk and discussion. All are invited and welcome to attend.

Where: Psychology Conference Room 128
When: Friday, September 13, 2013, 1:30pm

Title: Hearing evaluation with digits in noise: Development and validation of a telephone-based screening test for hearing impairment.

Abstract:
An estimated 36 million US citizens have impaired hearing, but nearly half of them have never had a hearing test, and no readily accessible low cost hearing screening programs are available in the US.  Since 2004, telephone administered screening tests utilizing three-digit sequences presented in noise have been developed, validated, and implemented in seven countries. Each of these tests has been based on a test protocol conceived by Smits and colleagues in The Netherlands.  Investigators from Communication Disorders Technology, Inc., Indiana University, and VU University Medical Center of Amsterdam have collaborated in the development and validation of a screening test for hearing impairment suitable for delivery over the telephone, for use in the United States. This test, utilizing three-digit sequences (triplets) spoken in a Middle American dialect, was based on the design of Smits and his colleagues.  The screening test has now been validated in two studies; one conducted in the Indiana University Hearing Clinic, and the other in three VA clinics across the country (Florida, Tennessee, and California).  A computer-based version has also been developed in collaboration with investigators at the Portland VA Medical Center.

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05th Sep 2013

Speech Research Lab Meeting – Friday September 6 – Angela AuBuchon

For this week’s SRL meeting, postdoctoral fellow Angela AuBuchon will give a talk about her recent research project exploring verbal rehearsal speed in long-term cochlear implant users. The abstract and title are provided below. All are invited and welcome to attend.

Where: Psychology conference room 128
When: Friday, September 6, 2013, 1:30pm

Title: Processing Speed, Speech and Language Skills, and Executive Functioning in Long-Term Cochlear Implant Users

Abstract: Verbal rehearsal speed (VRS), a form of private speech used to maintain information in working memory, predicts speech and language outcomes in deaf children with cochlear implants (CIs), as well as verbal working memory in CI users and normal-hearing (NH) children. In this study we replicated these findings and further examined the relations of VRS and perceptual encoding speed with two other domains of EF known to be at risk in CI users–Inhibition-Concentration and Fluency-Speed. CI users displayed significantly slower perceptual encoding and slower VRS than NH subjects. For CI users, VRS was related to speech perception, language, and language-mediated EF measures (e.g. verbal working memory and retrieval-fluency); for NH controls, VRS related to both language- and non-language-mediated EF measures but not to language. Encoding speed was related to all measures of EF for both groups, but to language only for the CI group. The relationship of encoding speed and VRS with speech, language, and executive functioning skills in children with CIs is complex and differs markedly from the pattern observed in NH peers.

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