Communication Sciences and Disorders Commons^™

Lcd 207: Anatomy And Physiology For Speech And Language, Yael Neumann

Open Educational Resources

This course is an introduction to the anatomy and physiology of the respiratory, phonatory, articulatory, resonatory, and nervous systems as they relate to voice, swallowing, speech production and language systems.

Aphasia In Multilingual Patients, Mira Goral, Zahra Hejazi

Publications and Research

Purpose of Review

We summarize recent published work concerning assessment and treatment of aphasia in bilingual and multilingual people and review current related models of treatment outcomes. As well, we discuss studies that address the recently debated topic of cognitive processes in bilingual individuals with aphasia, with a focus on the effects of bilingualism on aphasia recovery and its potential protective effects.

Recent Findings

Providing assessment and treatment tools that best serve multilingual individuals with aphasia and unpacking the variables and mechanisms that underlie response to treatment have emerged as goals of several recent studies. Additionally, while findings are still …

Strengthening The Semantic Verb Network In Multilingual People With Aphasia: Within- And Cross-Language Treatment Effects, Aviva Lerman, Mira Goral, Lisa Edmonds, Loraine K. Obler

Publications and Research

In multilingual people, semantic knowledge is predominantly shared across languages.
Providing semantic-focused treatment to people with aphasia has been posited to strengthen
connectivity within association cortices that subserve semantic knowledge. In multilingual people, such treatment should result in within- and cross-language generalisation to all languages, although not equally. We investigated treatment effects in two multilingual participants with aphasia who received verb-based semantic treatment in two pre-stroke highly
proficient languages. We compared within- and cross-language generalisation patterns across languages, finding within- and cross-language generalisation after treatment in the less-impaired, pre-morbidly more-proficient first-acquired language (L1). This observation supports the theory that connectivity …

Variables And Mechanisms Affecting Response To Language Treatment In Multilingual People With Aphasia, Mira Goral, Aviva Lerman

Publications and Research

Background: Despite substantial literature exploring language treatment effects in multilingual people with aphasia (PWA), inconsistent results reported across studies make it difficult to draw firm conclusions. Methods: We highlight and illustrate variables that have been implicated in effecting cross-language treatment effects in multilingual PWA. Main contribution: We argue that opposing effects of activation and inhibition across languages, influenced by pertinent variables, such as age of language acquisition, patterns of language use, and treatment-related factors, contribute to the complex picture that has emerged from current studies of treatment in multilingual PWA. We propose a new integrated model—Treatment effects in Aphasia in …

Effects Of Speech Cues In French-Speaking Children With Dysarthria, Erika S. Levy, Gemma Moya-Galé, Younghwa Michelle Chang, Luca Campanelli, Andrea A. N. Macleod, Sergio Escorial, Christelle Maillart

Publications and Research

Background: Articulatory excursion and vocal intensity are reduced in many children with dysarthria due to cerebral palsy (CP), contributing to the children’s intelligibility deficits and negatively affecting their social participation. However, the effects of speech-treatment strategies for improving intelligibility in this population are understudied, especially for children who speak languages other than English. In a cueing study on English-speaking children with dysarthria, acoustic variables and intelligibility improved when the children were provided with cues aimed to increase articulatory excursion and vocal intensity. While French is among the top 20 most spoken languages in the world, dysarthria and its management in …

Just Culture: It's More Than Policy, Linda Ann Paradiso, Nancy Sweeney

Publications and Research

Any healthcare organization’s top priority is effective and safe care. Despite this, medical error is the third-leading cause of death in the US. Hospitals are imperfect systems where nurses have competing demands and are forced to improvise and develop workarounds. Errors rarely occur in a vacuum, rather they’re a sequence of events with multiple opportunities for correction. Clinical nurses can have a significant impact on reducing errors due to their proximity to patients. When errors are identified, the events and impact on safe care need to be shared. Just culture is a safe haven that supports reporting. In a just …

Neural Indices Of Vowel Discrimination In Monolingual And Bilingual Infants And Children, Yan H. Yu, Carol Tessel, Henry Han, Luca Campanelli, Nancy Vidal, Jennifer Gerometta, Karen Garrido-Nag, Hia Datta, Valerie L. Shafer

Publications and Research

Objectives: To examine maturation of neural discriminative responses to an English vowel contrast from infancy to 4 years of age and to determine how biological factors (age and sex) and an experiential factor (amount of Spanish versus English input) modulate neural discrimination of speech.

Design: Event-related potential (ERP) mismatch responses (MMRs) were used as indices of discrimination of the American English vowels [ε] versus [I] in infants and children between 3 months and 47 months of age. A total of 168 longitudinal and cross-sectional data sets were collected from 98 children (Bilingual Spanish–English: 47 male and 31 female …

Lcd 322 Disorders Of Speech, Karen Ball

Open Educational Resources

LCD 322 is an undergraduate class that provides an overview of the symptoms, etiology, diagnosis, and treatment of various speech disorders including disorders of phonology/articulation, voice/resonance, fluency, swallowing, and speech impairment associated with neurological impairment. Speech disorders will be considered across the lifespan.

Promoting Aphasia Awareness, Yvonne M. Faria, Fiona Mcnulty, Veronica C. Gonzalez, Peggy S. Conner

Publications and Research

The National Aphasia Association defines aphasia as an impairment of language, affecting the production or comprehension of speech and ability to write. This communication disorder is typically acquired after a brain injury resulting from an accident or stroke. Nearly 180,000 Americans acquire aphasia each year. Despite efforts to increase awareness about aphasia, via organizations such as the National Aphasia Association, general knowledge is still limited. In 2000 Elman and colleagues collected data on the number of news articles that mentioned the term “aphasia” and compared it to similar health conditions with comparable or lower prevalence rates. They found that these …

Perception Of American–English Vowels By Early And Late Spanish–English Bilinguals, Miriam Baigorri, Luca Campanelli, Erika S. Levy

Publications and Research

Increasing numbers of Hispanic immigrants are entering the US and learning American–English (AE) as a second–language (L2). Previous studies investigating the relationship between AE and Spanish vowels have revealed an advantage for early L2 learners for their accuracy of L2 vowel perception. Replicating and extending such previous research, this study examined the patterns with which early and late Spanish–English bilingual adults assimilated naturally-produced AE vowels to their native vowel-inventory and the accuracy with which they discriminated the vowels. Twelve early Spanish–English bilingual, 12 late Spanish–English bilingual, and 10 monolingual listeners performed perceptual-assimilation and categorical-discrimination tasks involving AE /i,ɪ,ɛ,ʌ,æ,ɑ,o/. Early bilinguals …

Executive Control Mechanisms In Bilingualism: Beyond Speed Of Processing, Klara Marton, Mira Goral, Luca Campanelli, Jungmee Yoon, Loraine K. Obler

Publications and Research

The question of interest in this study was whether bilingual individuals show superior executive control compared to monolingual participants. Findings are mixed, with studies showing advantage, disadvantage, or no difference between bilingual and monolingual speakers. In this study, we used different experimental conditions to examine implicit learning, resistance to interference, monitoring, and switching, independently. In addition, we matched our monolingual and bilingual participants on baseline response time. Bilingual participants demonstrated faster implicit learning, greater resistance to interference, more efficient switching compared to monolingual participants. The groups did not differ in monitoring. In conclusion, depending on task complexity and on the …

Working Memory And Interference Control In Children With Specific Language Impairment, Klara Marton, Naomi Eichorn, Luca Campanelli, Lilla Zakarias

Publications and Research

Language and communication disorders are often associated with deficits in working memory (WM) and interference control. WM studies involving children with specific language impairment (SLI) have traditionally been framed using either resource theories or decay accounts, particularly Baddeley's model. Although significant interference problems in children with SLI are apparent in error analysis data from WM and language tasks, interference theories and paradigms have not been widely used in the SLI literature. A primary goal of the present paper is to provide an overview of interference deficits in children with SLI. Review of the extant literature on interference control shows deficits …

Communication And Common Interest, Peter Godfrey-Smith, Manolo Martínez

Publications and Research

Explaining the maintenance of communicative behavior in the face of incentives to deceive, conceal information, or exaggerate is an important problem in behavioral biology. When the interests of agents diverge, some form of signal cost is often seen as essential to maintaining honesty. Here, novel computational methods are used to investigate the role of common interest between the sender and receiver of messages in maintaining cost-free informative signaling in a signaling game. Two measures of common interest are defined. These quantify the divergence between sender and receiver in their preference orderings over acts the receiver might perform in each state …

“What” And “Where” In Auditory Sensory Processing: A High-Density Electrical Mapping Study Of Distinct Neural Processes Underlying Sound Object Recognition And Sound Localization, Victoria M. Leavitt, Sophie Molholm, Manuel Gomez-Ramirez, John J. Foxe

Publications and Research

Functionally distinct dorsal and ventral auditory pathways for sound localization (WHERE) and sound object recognition (WHAT) have been described in non-human primates. A handful of studies have explored differential processing within these streams in humans, with highly inconsistent findings. Stimuli employed have included simple tones, noise bursts, and speech sounds, with simulated left–right spatial manipulations, and in some cases participants were not required to actively discriminate the stimuli. Our contention is that these paradigms were not well suited to dissociating processing within the two streams. Our aim here was to determine how early in processing we …

A Sentence Test Of Speech Perception: Reliability, Set Equivalence, And Short Term Learning, Arthur Boothroyd, Laurie Hanin, Theresa Hnath

Publications and Research

The general goal of this project is to study the processes and outcomes of speech perception training in postlingually deafened adults fitted with cochlear implants. As part of this work we need to measure speech perception performance, using materials that place different relative emphases on the several components of the speech perception process. One of the materials that we have developed consists of 48 sets of topic-related sentences (see report #RCIl). These sets have been videorecorded by one female talker. One of the audio tracks contains the full acoustical signal. The other contains the output from an electroglottograph and consists …