Indiana University

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

Archive for the 'WIPI' Category

03rd Mar 2014

Speech Research Lab Meeting – March 7 – Irina Castellanos

For this week’s SRL meeting, postdoctoral research fellow Dr. Irina Castellanos will present a WIPI-style talk to discuss some preliminary data from her current research project.

The title and brief abstract are below, all are invited and welcome to attend.

Where: Psychology room 128

When: Friday, March 7, 1:30pm

Title: Spoken word learning in infants with hearing loss: The role of parent interactions.

Abstract: Language serves as a foundation for social and cognitive development. As compared to normal hearing (NH) peers, many deaf infants with hearing aids (HAs) and cochlear implants (CIs) display speech and language delays throughout childhood. Predictors for speech and language performance include, for example, age at implantation (Houston & Miyamoto, 2010), amount of residual hearing (El-Hakim et al., 2001), and communication mode (Kirk, Miyamoto, Ying, Perdew, & Zuganelis, 2000). After accounting for these factors, considerable individual differences remain. In the present study, we investigated the role of parents’ scaffolding of attention on hearing-impaired infants’ novel word learning. Previous research indicates that NH infants’ early word learning is facilitated when parents’ labeling of novel objects is synchronized with infants’ self-directed looking and touching of the novel objects (Yu & Smith, 2012). For hearing-impaired children, research indicates that parents use more directive parenting styles than parents of NH children(Meadow-Orlans, 1997). We predict that parent-infant coordination of looking and touching behavior may be influenced by the infants’ hearing status and that differences may be predictive of infants’ word learning.

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28th Jan 2014

Speech Research Lab Meeting – January 31 – Jon Willits

For this week’s SRL meeting, Dr. Jon Willits, a postdoc in Mike Jones’ lab will present a WIPI style talk. His title and abstract are provided below, all are welcome and invited to attend.

When: Friday, January 31, 2014, 1:30pm
Where: Psychology room #128

Title: Semantic Models and their Applications to Vocabulary Development in Children with Cochlear Implants and Normal Hearing Children

Abstract: I will give a talk that has two parts. In the first half I will discuss semantic memory models and some of their applications to vocabulary development in typically developing children. I will show that these models can help predict interesting facts about language development, such as which words and concepts are easy and difficult to learn. The models also make suggestions about some underlying facts about the language learning process, such as the importance of different kinds of information. In the second half I will discuss some preliminary work on applying these models to language development with children with cochlear implants, such as modeling behavior on verbal fluency tasks.

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21st Jan 2014

Speech Research Lab Meeting – January 24 – Suyog Chandramouli

For this week’s SRL meeting a graduate student in our lab, Suyog Chandramouli, will be presenting a WIPI (Work-in-Progress) style presentation to discuss some new ideas about his project. Below is a brief synopsis and two readings to provide background for the discussion.

Download the two articles by clicking the following links:

WixtedRohrer1993JEPLMC- Proactive Interference and Dynamics of Free Recall

Wickens – Some Characteristics of Word Encoding

All are welcome to join.
Where: Psychology conference room #128
When: Friday, January 24, 1:30pm

“In this WIPI, I will talk about a release from proactive interference experiment that is being designed in the lab to study storage and
retrieval of speech information in memory.

The aim of the study is to obtain rankings of the relative importance of parameters of speech stimuli such as gender of talker, accents, etc. in aiding episodic memory performance, and to study how these ranks vary under conditions such as clear/processed speech, embedding in noise, etc.

Use of the release from proactive interference paradigm was pioneered by DD Wickens in the 60’s and 70’s to study coding processes in human memory. The design closely follows modifications of the PI-design by Gardiner (1972) and, John Wixted and Doug Rohrer (1993).

Studies may be conducted in the future with cochlear implant patients at different levels of expertise to glean the parameters salient to them in different listening conditions. With this knowledge, it might be possible to develop programs that would focus on training novice cochlear implant users to automatically pay attention to features important for encoding context so that they can better remember and recall information.

Attached is a short overview by Wickens of his research, and the paper by Wixted and Rohrer that will be discussed in the presentation.

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