Multidimensional voice program analysis in profoundly deaf children: quantifying frequency and amplitude control

Characterization of the vocal profile of profoundly deaf children using an objective voice analysis was carried out in a university-based pediatric otolaryngology clinic. 21 persons ages 3.5 to 18 years were assessed. From each sustained phonation of the vowel /a/ the following acoustic variables were extracted: fundamental frequency (F0), jitter percentage, shimmer percentage, fundamental frequency variation (vF0), peak amplitude variation (vAM), and first, second, and third formant frequencies (F1, F2, F3). Mean F0 was 267.8 Hz and consistent with established normative data. Mean measurements of jitter (0.88%) and shimmer (3.5%) were also within normal limits. The notable feature of the acoustic analysis was a statistically significant elevation in vF0 (2.81%) and vAM (23.58%). With the exception of one subject, the F1, F2, and F3 formant frequencies were comparable to those for normal hearing children. Auditory deprivation results in poor long-term control of frequency and amplitude during sustained phonation. The inability to maintain a sustained phonation may represent the partial collapse of an internal model of voice and speech.     

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Call for papers electronic archiving: Norms, stimuli, and data a special issue ofBehavior Research Methods, Instruments, & Computers     

Visual recognition of biological motion is impaired in children with autism

Autistic children and typically developing control children were tested on two visual tasks, one involving grouping of small line elements into a global figure and the other involving perception of human activity portrayed in point-light animations. Performance of the two groups was equivalent on the figure task, but autistic children were significantly impaired on the biological motion task. This latter deficit may be related to the impaired social skills characteristic of autism, and we speculate that this deficit may implicate abnormalities in brain areas mediating perception of human movement.     

Is job search related to employment quality? It all depends on the fit

In this longitudinal study on job search, fit perceptions, and employment quality, 113 graduates completed surveys prior to organizational entry and 4 months after entry. Job search behavior and career planning were positively related to pre-entry person-job (P-J) and person-organization (P-O) fit perceptions, and pre-entry P-J fit perceptions mediated the relationship between career planning and postentry P-J fit perceptions. P-J and P-O fit perceptions were positively related to job and organizational attitudes, and pre-entry P-J fit perceptions mediated the relationship between career planning and job attitudes. Further, the relationships between pre-entry fit perceptions and employment quality were mediated by postentry fit perceptions. These results indicate that P-J and P-O fit perceptions play an important role in linking job search to employment quality.     

Influences on the Food Choice Behaviors of Adults With Severe Mental Illness

The objective of this research was to gain a deeper understanding of factors influencing the healthiness of food choice behaviors of community-dwelling adults with severe mental illness. Semi-structured interviews were conducted in an outpatient treatment facility with 20 program participants and 10 staff. Grounded theory analysis methods were used. Five dominant themes emerged: food availability, preference for simple food preparation, perceived cost of food, complexity of choice, and relative importance of healthy food choices. The theme of medication effects only emerged from staff interviews. This research can be useful to inform the design of nutrition interventions for this population.     

Relationship between Trauma and Risky Behavior in Substance-Abusing Parents Involved in a Family Dependency Treatment Court

This exploratory study examined participants in a Family Dependency Treatment Court (FDTC), designed for substance-abusing parents whose children were removed from the home. Twenty-five participants were interviewed one year after FDTC enrollment to assess retrospectively the relationship between trauma history and risky behaviors. Treatment compliance rates were found to be high, and most participants had negative urinalysis results. Qualitative analyses revealed that approximately half of the participants attributed decreases in risky behaviors to the FDTC program. This study increases understanding of the effect of substance abuse and trauma on high-risk behaviors and might help to improve services for substance-abusing parents involved in the child welfare system. Finally, the future success of reducing child abuse and neglect and parental substance use could hinge on the partnership between judicial and substance abuse treatment through FDTCs. Findings from this exploratory pilot study should be replicated with more representative and larger samples.     

Methodological considerations in developing measures of HIV risk-relevant behaviors and attitudes: An empirical illustration

Abstract

This paper describes the pilot testing of a survey designed to assess the prevalence of HIV exposure risk-relevant behaviors and associated attitudes, beliefs and knowledge in a heterogeneous, ethnically diverse, sexually active population (the US Army). The specific objectives for the pilot test were to: (1) define optimal survey question formats for behavioral and attitude items; (2) identify questions that were poorly worded or that would not contribute to the overall objectives of the survey; (3) assess the extent to which respondents could accurately follow instructions; (4) identify appropriate and culturally relevant terminology for sensitive items; (5) determine the appropriate timeframe for recall of simple and complex sexual behaviors; (6) assess the degree of respondent honesty and belief in the anonymity of the survey results.