Matching Items (37)
Description
The purpose of this study was to explore the effects of word type, phonotactic probability, word frequency, and neighborhood density on the vocabularies of children with mild-to-moderate hearing loss compared to children with normal hearing. This was done by assigning values for these parameters to each test item on the Peabody Picture Vocabulary Test (Version III, Form B) to quantify and characterize the performance of children with hearing loss relative to that of children with normal hearing. It was expected that PPVT IIIB scores would: 1) Decrease as the degree of hearing loss increased. 2) Increase as a function of age 3) Be more positively related to nouns than to verbs or attributes. 4) Be negatively related to phonotactic probability. 5) Be negatively related to word frequency 6) Be negatively related to neighborhood density. All but one of the expected outcomes was observed. PPVT IIIB performance decreased as hearing loss increased, and increased with age. Performance for nouns, verbs, and attributes increased with PPVT IIIB performance, whereas neighborhood density decreased. Phonotactic probability was expected to decrease as PPVT IIIB performance increased, but instead it increased due to the confounding effects of word length and the order of words on the test. Age and hearing level were rejected by the multiple regression analyses as contributors to PPVT IIIB performance for the children with hearing loss. Overall, the results indicate that there is a 2-year difference in vocabulary age between children with normal hearing and children with hearing loss, and that this may be due to factors external to the child (such as word frequency and phonotactic probability) rather than the child's age and hearing level. This suggests that children with hearing loss need continued clinical services (amplification) as well as additional support services in school throughout childhood.
ContributorsLatto, Allison Renee (Author) / Pittman, Andrea (Thesis director) / Gray, Shelley (Committee member) / Brinkley, Shara (Committee member) / Barrett, The Honors College (Contributor) / Department of Speech and Hearing Science (Contributor)
Created2013-05
Description
This creative project is a children's book entitled Sheldon the Shy Tortoise. Accompanying the story is a literature review of the research on childhood shyness. The purpose of the project is to gain a better of understanding of shyness in childhood. Topics covered in the literature review include risk factors and causes, negative social and behavioral effects, impact on academics, and treatment options. Using this information, the children's book was written. It aims to be fun for children to read while also providing insight and encouragement into some of the problems related to being shy. The story features animal characters and a relatively simple plot so it is easily understandable by the target audience of late-preschool and early-elementary children. The main character, Sheldon the tortoise, is often physically and metaphorically "stuck in his shell". He wants to participate in social activities but is afraid to do so. Through a series of events and interactions, Sheldon starts to come out of his shell in every sense of the phrase. The book is illustrated using photographs of hand-crocheted stuffed animals representing each of the characters. By incorporating scholarly research into the writing process, children will hopefully be able to gain an understanding of their shyness and ways to help decrease it. Teachers should be able to better understand their shy students and understand some of the unique challenges of working with shy children. This creative project helps convey necessary information to children and families during a critical period of development.
ContributorsRyan, Amanda (Author) / Hansen, Cory (Thesis director) / Bernstein, Katie (Committee member) / Department of Speech and Hearing Science (Contributor) / Sanford School of Social and Family Dynamics (Contributor) / Department of Psychology (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
In this pilot study, the purpose was to determine if certain language interventions could help bilingual children reduce maze use and improve their story retell abilities. We used language intervention, Story Champs, and its Spanish version, Puente de Cuentos to help bilingual children improve their story retell abilities. We conducted the intervention over the course of three days in both Spanish and English. The children participated in three stories in each language each day. They also received a narrative measure before and after the intervention to measure gains in story ability and to measure maze use. Results of the study indicated that there were no statistically-significant differences in the children's story retell abilities or maze use before and after the intervention. Nevertheless, we are encouraged by our results for future further study because of some improvements the children made.
ContributorsWhiteley, Aaron Kyle (Author) / Restrepo, Maria (Thesis director) / Dixon, Maria (Committee member) / Department of Speech and Hearing Science (Contributor) / School of International Letters and Cultures (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
This pilot study evaluated whether Story Champs and Puente de Cuentos helped bilingual preschoolers increase their usage of emotional terms and ability to tell stories. Participants in this study included 10 Spanish-English bilingual preschoolers. Intervention was conducted in 9 sessions over 3 days using the Test of Narrative Retell to measure results. Results did not find significant gains in either emotional term usage or ability to tell stories, but the results were promising as a pilot study.
ContributorsSato, Leslie Mariko (Author) / Restrepo, Maria (Thesis director) / Dixon, Maria (Committee member) / Department of Speech and Hearing Science (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
Hearing and vision are two senses that most individuals use on a daily basis. The simultaneous presentation of competing visual and auditory stimuli often affects our sensory perception. It is often believed that vision is the more dominant sense over audition in spatial localization tasks. Recent work suggests that visual information can influence auditory localization when the sound is emanating from a physical location or from a phantom location generated through stereophony (the so-called "summing localization"). The present study investigates the role of cross-modal fusion in an auditory localization task. The focuses of the experiments are two-fold: (1) reveal the extent of fusion between auditory and visual stimuli and (2) investigate how fusion is correlated with the amount of visual bias a subject experiences. We found that fusion often occurs when light flash and "summing localization" stimuli were presented from the same hemifield. However, little correlation was observed between the magnitude of visual bias and the extent of perceived fusion between light and sound stimuli. In some cases, subjects reported distinctive locations for light and sound and still experienced visual capture.
ContributorsBalderas, Leslie Ann (Author) / Zhou, Yi (Thesis director) / Yost, William (Committee member) / Department of Speech and Hearing Science (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
To localize different sound sources in an environment, the auditory system analyzes acoustic properties of sounds reaching the ears to determine the exact location of a sound source. Successful sound localization is important for improving signal detection and speech intelligibility in a noisy environment. Sound localization is not a uni-sensory experience, and can be influenced by visual information (e.g., the ventriloquist effect). Vision provides contexts and organizes the auditory space for the auditory system. This investigation tracks eye movement of human subjects using a non-invasive eye-tracking system and evaluates the impact of visual stimulation on localization of a phantom sound source generated through timing-based stereophony. It was hypothesized that gaze movement could reveal the way in which visual stimulation (LED lights) shifts the perception of a sound source. However, the results show that subjects do not always move their gaze towards the light direction even when they experience strong visual capture. On average, the gaze direction indicates the perceived sound location with and without light stimulation.
ContributorsFlores, Nancy Gloria (Author) / Zhou, Yi (Thesis director) / Azuma, Tamiko (Committee member) / Department of Speech and Hearing Science (Contributor) / School of International Letters and Cultures (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
Preschoolers' vocabularies are an important component of their receptive and expressive language skills. This study was designed to catalog preschoolers' expressive vocabularies to provide an accurate estimate of how many words and which words seven preschoolers knew. In this study a LENA digital recorder was used to record language samples of the children (age range 40 months to 69 months) over 4-6 days. Their language samples were transcribed and individual root words were extracted. The children spoke an average of 1,698 unique words (range 1,522 \u2014 1,957 words). There were 539 words produced by all of the children in the study as well as 820 words produced by 6 of the 7 children. These data provide preliminary information that will be useful for designing a larger, more comprehensive study of children's vocabulary with the goal of teachers and speech-language pathologists being able to use this information to determine if a child's vocabulary is smaller than other children when they enter elementary school. This can inform assessment and intervention decisions as well as provide guidance to preschool curriculum developers.
ContributorsStanovich, Laura Ashlee (Author) / Gray, Shelley (Thesis director) / Restrepo, M. Adelaida (Committee member) / Department of Speech and Hearing Science (Contributor) / Sanford School of Social and Family Dynamics (Contributor) / Barrett, The Honors College (Contributor)
Created2015-12