Perceptions of the Scope of Practice of Audiology.

Purpose: The primary purpose of this study was to determine which scope of practice roles and responsibilities are attributed to the profession of audiology (AUD) relative to other health care disciplines by a group of health and human services faculty and students.

Method: An online survey inquiring about participant knowledge of different health professions' scopes of practice, and experience with and attitude toward the profession of AUD, was sent to faculty and students in the Western Michigan University College of Health and Human Services. Students also completed two subscales of the Interprofessional Attitudes Scale.

Clock Drawing Test Performance of Young Adults Based on a One-Shot Case Study.

Objective: The clock drawing test (CDT) is being used regularly by medical professionals in a variety of settings to aid in assessing cognitive functioning in adults of all ages. As our technological environment has changed significantly, because of the inception of this measure, the use of and exposure to the analog clock have diminished. We investigated whether young adults, who have grown up in a mainly digital world, can draw and tell time on an analog clock.

Retrospective Chart Review Examining Differences and Timelines in Recommended and Delivered Wheelchair Equipment in a Midwestern Dedicated Seating Department.

Objective: To compare recommended wheeled mobility equipment with delivered equipment, excluding custom seats and backs, considering demographic factors, such as sex, age, and funding source, as well as the timeline of the procurement process.

Design: Retrospective chart review.

Setting: Dedicated wheelchair seating department within a Midwestern rehabilitation hospital and associated complex rehabilitation technology durable medical equipment suppliers.

Assessment of online patient education materials designed for people with age-related macular degeneration.

Background: Age-related macular degeneration (AMD) is a chronic eye condition that leads to permanent vision loss in the central visual field. AMD makes reading challenging and inefficient. People with AMD often find it difficult to access, process and understand written patient education materials (PEMs).

Considerations for the Use of Neuroimaging Technologies for Predicting Recovery of Speech and Language in Aphasia.

Purpose: The number of research articles aimed at identifying neuroimaging biomarkers for predicting recovery from aphasia continues to grow. Although the clinical use of these biomarkers to determine prognosis has been proposed, there has been little discussion of how this would be accomplished. This is an important issue because the best translational science occurs when translation is considered early in the research process.

Self-Judgments of Word Production Accuracy in Acquired Apraxia of Speech.

Purpose: The ability to recognize one's own speech errors has long been considered a clinical feature of acquired apraxia of speech (AOS) despite limited empirical data supporting this notion. This study was designed to (a) investigate the ability of speakers with AOS to self-judge the accuracy of their own word productions and (b) examine the test-retest stability of a measure to quantify the self-judgments of speakers with AOS.

Method: Twenty-four speakers with AOS and aphasia repeated mono- and multisyllabic words.

The effect of speaking rate on serial-order sound-level errors in normal healthy controls and persons with aphasia.

Background: Although many speech errors can be generated at either a linguistic or motoric level of production, phonetically well-formed sound-level serial-order errors are generally assumed to result from disruption of phonologic encoding (PE) processes. An influential model of PE (Dell, 1986; Dell, Burger & Svec, 1997) predicts that speaking rate should affect the relative proportion of these serial-order sound errors (anticipations, perseverations, exchanges). These predictions have been extended to, and have special relevance for persons with aphasia (PWA) because of the increased frequency with which speech errors occur and because their localization within the functional linguistic architecture may help in diagnosis and treatment.

Ease of articulation: A replication.

Unlabelled: Researchers, as well as the lay public and the popular press, have become increasingly concerned about the lack of reproducibility of research findings. Despite this concern, research has shown that replications of previously published work comprise a very small proportion of published studies. Moreover, there are fewer published direct replications of research studies by independent investigators, and this type of replication is much less likely to confirm the results of the original research than are replications by the original investigator or conceptual replications.

Motor demand-dependent activation of ipsilateral motor cortex.

The role of ipsilateral primary motor cortex (M1) in hand motor control during complex task performance remains controversial. Bilateral M1 activation is inconsistently observed in functional (f)MRI studies of unilateral hand performance. Two factors limit the interpretation of these data.

Does experience in talking facilitate speech repetition?

Speech is unique among highly skilled human behaviors in its ease of acquisition by virtually all individuals who have normal hearing and cognitive ability. Vocal imitation is essential for acquiring speech, and it is an important element of social communication. The extent to which age-related changes in cognitive and motor function affect the ability to imitate speech is poorly understood.

Motor demand-dependent improvement in accuracy following low-frequency transcranial magnetic stimulation of left motor cortex.

The role of primary motor cortex (M1) in the control of voluntary movements is still unclear. In brain functional imaging studies of unilateral hand performance, bilateral M1 activation is inconsistently observed, and disruptions of M1 using repetitive transcranial magnetic stimulation (rTMS) lead to variable results in the hand motor performance. As the motor tasks differed qualitatively in these studies, it is conceivable that M1 contribution differs depending on the level of skillfulness.

The effect of sublexical and lexical frequency on speech production: An fMRI investigation.

There is no consensus regarding the fundamental phonetic units that underlie speech production. There is, however, general agreement that the frequency of occurrence of these units is a significant factor. Investigators often use the effects of manipulating frequency to support the importance of particular units.

An fMRI investigation of covertly and overtly produced mono- and multisyllabic words.

Studies suggest that the left insula may play an important role in speech motor programming. We used functional magnetic resonance imaging to investigate the role of the left insula in the production of monosyllabic or multisyllabic words during overt and covert speech conditions. The left insula did not show a BOLD response for multisyllabic words (which should require more speech motor programming) that was different from that for monosyllabic words.

Toward a better understanding of the perception of self-produced speech.

Unlabelled: The subject of how humans hear their own voices while speaking has received sporadic attention. Previous investigations suggest that the voice is heard substantially via bone conduction, implying a different transfer function to the ear--perhaps a low-pass filter--than for purely air-conducted vocalizations. Determining the characteristics of the transfer function of self-produced speech might contribute to a better understanding of self-perception.