Brown Bag

2017-2018 Talks

LYLE 1150: 12:30-1:20pm 

September 18, 2017

Ryan Peters, PhD Student, SLHS

Modeling Early Lexico-Semantic Network Development: Perceptual Features Matter Most

Abstract: What kinds of connections among word meaning are important in early vocabulary learning? We approach this question by (1) exploring relations between the semantic characteristics of words and the order in which they are typically learned and (2) modeling normative lexico-semantic noun-feature network development. We use a database of semantic features of early-learned words (Peters et al. in prep) in conjunction with a publicly available dataset of word-level vocabulary data in 16- to 30- month-old children (Frank et al., 2016).

September 25, 2017

MobileMedTek, a Louisville, Kentucky based engineering design firm focused on innovation in neurodiagnostics, will be visiting and presenting from 12:30-1:20 pm in LYLE 1150. MobileMedTek will be providing a demonstration of the ElectroTek system and highlight potential areas for collaboration with innovators in the neurodiagnostics and electrophysiology research space.

The ElectroTek, is a streamlined 32-channel EEG system with expanded capabilities that may be of interest to the neuroscience community.  The product can be used in the diagnosis of neurological disorders ranging from epilepsy to diabetic neuropathy through Electroencephalography (EEG), Electromyography (EMG), Nerve Conduction Studies (NCS), and Evoked Potential (EP) tests.

Key features of our product include:

· Clinical-grade mobile system

· Cloud-enabled

· Real-time remote review

· Intuitive setup and user interface (Approximately 5-minute setup time from power-on)

October 2, 2017

Tory McKenna, Postdoc Candidate

Physiological, Acoustical, and Perceptual Measures of Vocal Effort

Although excessive vocal effort is one of the most common symptoms reported in individuals with tension-based voice disorders, there currently exists no single measure that can objectively indicate or track effort at this time. As a result, further information is needed to guide clinical care in these patients. The studies described in this talk seek to explore quantitative measures to further understand the underlying physiology of effort and evaluate objective indicators of effort and tension. In particular, these studies will explore 1) an acoustic correlate to laryngeal tension during modulations of vocal effort, 2) novel use of a neck-surface accelerometer to estimate subglottal pressure during changes in vocal effort and intensity, and 3) methodology from a comprehensive analysis of laryngeal physiology and acoustical indicators of vocal effort, and their relationship with self- and listener-perceptions

October 30, 2017

Laurence B Leonard, Distinguished Professor

The Preliminary effect of Whispered Speech on Voice Measures.

Many prominent treatment approaches for preschool-age children with morphosyntactic deficits place emphasis on creating an “ideal” input by increasing the number of times the target form is presented, that is, by increasing token frequency. In this presentation, three more recent intervention approaches that go beyond token frequency will be discussed. These approaches are the “Input Informativeness” approach, the “Competing Sources of Input” approach, and the “High Variability” approach. Based on recent intervention studies, all three of these approaches have been successful in helping children make significant gains in morphosyntax. The three approaches go beyond token frequency by emphasizing relative frequency and type frequency in the presentation of target forms to children. Examples of each of these approaches will be presented along with supportive evidence. With very few modifications, the key ingredients of these three approaches can be integrated into a treatment regimen without violating any of their theoretical assumptions.  

November 6, 2017

Anumitha Venkatraman, PhD Candidate

The Preliminary effect of Whispered Speech on Voice Measures.

Whispered speech is characterized by turbulent airflow at the level of the glottis. Using a whisper quality is believed to harm the voice but, there is no consensus on the effects of whispered speech on voice production. We investigated the effects of sustained (45 minutes) whispered speech versus loud speech on voice measures in 24 healthy subjects. Both whispered and loud speech negatively affected aerodynamic and acoustic voice measures. The implications of these findings will be discussed.

November 13, 2017

Julia Krebs, Ph.D.
Research group Neurobiology of Language, Department of Linguistics; Centre for Cognitive Neuroscience (CCNS), University of Salzburg
Visiting Post-doctoral Scholar, Fall 2017

Who is doing what to whom? - The processing of argument relations in Austrian Sign Language (ÖGS)

Studies on spoken languages revealed the human parser’s tendency to interpret a sentence-initial syntactically ambiguous argument as the subject. This “subject preference“ leads to reanalysis and thus causes enhanced processing costs during the processing of locally ambiguous object-initial orders. Because the subject preference has been observed in typologically different languages it has been assumed to represent a universal processing strategy. The studies presented in this talk investigated how word order variations are processed in a sign language (Austrian Sign Language), whether the universality of the “subject preference“ can be supported by data of sign language processing, and whether there are modality specific differences in processing.

 

Speech, Language, & Hearing Sciences, Lyles-Porter Hall, 715 Clinic Drive, West Lafayette, IN 47907-2122, PH: (765) 494-3789

2016 Purdue University | An equal access/equal opportunity university | Copyright Complaints | Maintained by SLHS

If you have trouble accessing this page because of a disability, please contact the webmaster at slhswebhelp@purdue.edu.