Although recent literature suggests that fatigue influences the communication of people with multiple sclerosis (MS), its relationship to acoustic measures of speech, specifically formant transitions during diphthongs, has not been explored. In the present study, 11 participants diagnosed with MS, two of whom were perceptually dysarthric, and 12 control subjects were recorded as they performed selected speech tasks in both the morning and the afternoon. Before each recording session, participants rated their fatigue level. The participants with MS gave significantly higher ratings of fatigue than the control group. The speakers with MS had longer diphthong durations in a non-fatigued state, but not in a fatigued state, which was indicative of the variability in this group of speakers. Fatigue was not shown to affect any other acoustic variables. This finding may be attributable to the mildness of the speech impairment of this sample of speakers with MS.

This study examined how retelling stories with a variety different background noise conditions affected the communicative experiences of people with aphasia (PWA). Participants included 11 adults with mild to moderate aphasia and 11 age- and gender-matched controls. Participants participated in a semi-structured interview immediately following the experimental measure where they were asked open-ended questions regarding their experience retelling stories and how those experiences related to their everyday lives. Results revealed three themes related to how participants responded to communicating in noise: (a) cognitive reactions, (b) emotional reactions, and (c) social reactions. The findings suggest that PWA exert more effort when speaking in noise and benefit from supportive communication partners more than control participants. Findings also suggest that PWA who reported a lack of strategies were more likely to adopt maladaptive strategies. Explicit training for communication partners and PWA may help PWA more effectively cope with the challenges of difficult noise situations which may lead to increased confidence and social participation.

The purpose of this study was to examine how varying pause lengths in speech of people with aphasia (PWA) influences listeners' perceptions. The study specifically assesses listeners' perceptions of communicative effectiveness and speaker likability. Speech samples from six people with nonfluent or fluent aphasia were obtained from a previous study conducted by Harmon (2018). The speech samples were modified to create four sets of stimuli, including the original recordings, normalized within utterance pauses, normalized between utterance pauses, and normalized for both within and between utterance pauses. Forty listeners rated each of the speech samples based on the perceived communicative effectiveness and likability using a visual analog scale. Communicative effectiveness and likability ratings were significantly higher for the normalized within utterance and normalized within and between utterance conditions when compared to the baseline and normalized between utterance conditions. Both male and female listeners rated the recordings from nonfluent aphasic speakers lower than recording from speakers with fluent aphasia. Results of the study provide preliminary evidence that pauses in speech of PWA influence listeners' perceptions of communicative effectiveness and likability of the speaker. It is hoped that additional research regarding pause in speech of PWA will be conducted to determine if targeting pause in speech-language therapy will improve the communication of PWA.

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This study evaluated the impact of a clinically-based Speech Entrainment (SE) approach on content word production and phonemic accuracy in a single-subject design involving a stroke survivor with nonfluent aphasia and acquired apraxia of speech (AOS). Due to the emergence of the COVID-19 pandemic, the study was conducted entirely through remotely-delivered telepractice using the online conferencing platform Zoom. SE is a current speech-language treatment that aims to improve the expressive deficits typically encountered in individuals with nonfluent aphasia and AOS through consistent practice in mimicry of pre-recorded audiovisual supports. This single-subject, multiple-baseline across behaviors design utilized a clinically-driven, patient-centered SE approach to evaluate the generalization of treatment effects to trained and untrained pre-scripted targets across the participant's daily communicative contexts. Treatment stimuli were developed with direct participation by the participant and his family in accordance with the principles of patient-centered treatment design. The participant underwent an 8-week treatment period in which SE was used to facilitate repeated practice using audiovisual recordings of pre-scripted stimuli across six categories. Preliminary results suggest a positive impact on content word production and phonemic accuracy for trained targets with and without the use of the audiovisual supports. This study also aimed to evaluate the potential for SE to become a longer-term communication support; a suggestion made by authors of previous research using SE. Recommendations for further research in clinically-based SE treatment and use of SE as a long-term communication support are made.

Research has demonstrated that automated grammatical tagging is fast and accurate for both English and Spanish child language, but there has been no research done regarding its accuracy with bilingual children. The present study examined this topic using English and Spanish language samples taken from 254 children living in the United States. The subjects included school-aged children enrolled in public schools in the United States in grades 2, 3, or 5. The present study found high automated grammatical tagging accuracy scores for both English (M = 96.4%) and Spanish (M = 96.8%). The study suggests that automated grammatical analysis has potential to be a valuable tool for clinicians in the analysis of the language of bilingual children.

Speech audiometry is an important aspect of audiological testing. One aspect of speech audiometry is the measurement of an individual's speech reception threshold (SRT). Materials needed to measure the SRT are available in many languages; however, recorded materials for the Mongolian Language are not widely available. The purpose of this study was to develop a list of psychometrically equivalent words for evaluating the hearing abilities of native Mongolian speaking individuals. A set of 90 commonly used bisyllabic Mongolian words were digitally recorded by a male and female talker of Mongolian and then evaluated by 20 native Mongolian listeners. A final list of 28 words with relatively steep psychometric function slopes were selected and digitally adjusted to reduce intensity threshold variability among words. Digital recordings of the 28 psychometrically equivalent bisyllabic words are available on compact disc to facilitate SRT testing of native Mongolian speakers.

The purpose of this study was to develop, digitally record, evaluate, and equate Spanish trisyllabic words which could then be used in the measurement of the speech reception threshold. A selection of 90 frequently utilized trisyllabic words were selected and then digitally recorded by male and female talkers of Spanish and presented to 20 subjects with normal hearing beginning at 6 dB below their pure-tone average (PTA) and ascending in 2 dB increments until one of the following criteria had been met: (a) the participant responded correctly to 100% of the test items, or (b) the presentation level reached 16 dB HL. Using logistic regression, psychometric functions were calculated for each word. Twenty-eight trisyllabic words with the steepest psychometric function slopes were selected. To decrease the variability among the words the intensities were digitally adjusted to match the mean subject PTA (5.83 dB HL). The resulting lists included mean slopes at 50% threshold which ranged from 7.3 %/dB to 12.7 %/dB (M = 10.1) for the male talker recording and from 7.1 %/dB to 12.8 %/dB (M = 8.7) for the female talker. Digital recordings of the 28 final psychometrically equivalent trisyllabic words are available on compact disc.

Previously existing computer analysis programs have been unable to correctly identify many complex syntactic structures thus requiring further manual analysis by the clinician. Complex structures, including the relative clause, are of interest in child language samples due to the difference in development between children with and without language impairment. The purpose of this study was to assess the comparability of results from a new automated program, Cx, to results from manual identification of relative clauses. On language samples from 10 children with language impairment (LI), 10 language matched peers (LA), and 10 chronologically age matched peers (CA), a computerized analysis based on probabilities of sequences of grammatical markers agreed with a manual analysis with a Kappa of 0.88.

Several recent studies have suggested that persons with multiple sclerosis (MS) have diminished syntactic complexity. A greater variability in responses to a variety of tasks has also been noted for persons with MS. However, naturalistic data on syntactic complexity and the complexity's variability in persons with MS have not been examined. In the present study, 8 volunteers with MS (age 18-70 years) and 10 adults without MS participated in both a 15-minute conversational language sample and a sentence completion task in two different sessions. No significant differences were found between groups on any measure, and variability within the groups was similar. This may have been because volunteers were people with mild cases of MS or those in a state of remission and may not be representative of persons who were at a more advanced stage of the disease or in a state of exacerbation.