Effect of an auditory training program on reading, phoneme awareness, and language

This investigation examined the effect of an auditory training program, Fast ForWord-Language, with 26 children ages 7 to 10 years. As two subgroups based on reading ability, all children received 6 wk. of intervention. Thresholds for three conditions of backward masking were obtained pre- and postintervention, and 6 mo. afterward. Immediately following the intervention period, backward masking thresholds improved for all backward masking conditions. Participants also showed increases in language skills and in phoneme awareness but not in reading skills. Six months after intervention, there were improvements in thresholds for backward masking but no improvements in language or reading skills for either group. This study calls into question the efficacy of an intensive auditory training program to improve reading skills.     

Treatment choice for PTSD

The impetus for seeking help for assault-related difficulties often rests upon the victims themselves. Yet, we know very little about what factors influence a woman's decision to seek a particular kind of help after an assault. To learn more about these factors, data from 273 women with varying degrees of trauma history and subsequent PTSD symptoms were collected. All participants read a standard, "if this happened to you, what would you do" scenario describing a traumatic event and subsequent trauma-related psychiatric symptoms. Participants were given the same trauma scenario (i.e., sexual assault) and three treatment options to choose from: sertraline (SER), prolonged exposure (PE), or no treatment. Ratings of treatment credibility, personal reactions to treatment options, and treatment choice were examined. Women were more likely to choose PE than SER for the treatment of chronic PTSD. Perceived credibility of the treatment and personal reactions coincided with women's choices. By better understanding who would choose which treatments for PTSD and why, we will improve our ability to tailor how we approach discussing treatment options with these women.     

Directed forgetting following mood induction in chronic posttraumatic stress disorder patients

Current research of posttrauma sequelae suggests that intrusive rather than avoidant-dissociative models more accurately represent the encoding processes of trauma cues. However, posttraumatic stress disorder (PTSD) is often conceptualized as a phasic phenomenon, altering between arousal and avoidance states. The failure to support a relationship between avoidant encoding style and PTSD may reflect this alteration. To explore this hypothesis, participants with PTSD and controls (no PTSD) completed an item-cued directed-forgetting task, following either a dissociative or a serenity (control) mood induction. Results suggested that, following the serenity induction, a standard directed-forgetting effect was observed. However, following the dissociation induction, this effect was not observed. The role of dissociation in impairing encoding via lack of selective rehearsal or source discrimination is discussed.     

Opinion formation in evaluating the adjudicative competence and restorability of criminal defendants: a review of 8,000 evaluations

Evaluations of competence to stand trial (CST) are the most common type of criminal forensic evaluation conducted, and courts tend to defer to clinician opinions regarding a defendant's competence. Thus, it is important to study the ways in which clinicians arrive at opinions regarding adjudicative competence and the data they consider in forming their opinions. We reviewed 8,416 evaluations conducted by forensic evaluators in Virginia over a 12 year period, and examined (a) the clinical, demographic, and criminal characteristics of a defendant as related to opinions regarding competence, predicted restorability, and impairment on "prongs" of the Dusky standard, (b) process and outcome differences in evaluations conducted by psychiatrists versus psychologists and inpatient versus outpatient evaluators, and (c) the consistency of incompetence base rates over a 10 year period. Overall, clinicians opined that 19% of defendants were incompetent and considered 23% of these unlikely to be restored to competence. Not surprisingly, psychotic and organic/intellectual disorders were most strongly associated with findings of incompetence. However, there were some notable differences between evaluations by psychologists versus psychiatrists and between evaluations conducted in inpatient versus outpatient settings.     

A critical evaluation of visually moderated phonetic context effects

Fowler, Brown, and Mann (2000) have reported a visually moderated phonetic context effect in which a video disambiguates an acoustically ambiguous precursor syllable, which, in turn, influences perception of a subsequent syllable. In the present experiments, we explored this finding and the claims that stem from it. Experiment 1 failed to replicate Fowler et al. with novel materials modeled after the original study, but Experiment 2 successfully replicated the effect, using Fowler et al.'s stimulus materials. This discrepancy was investigated in Experiments 3 and 4, which demonstrate that variation in visual information concurrent with the test syllable is sufficient to account for the original results. Fowler et al.'s visually moderated phonetic context effect appears to have been a demonstration of audiovisual interaction between concurrent stimuli, and not an effect whereby preceding visual information elicits changes in the perception of subsequent speech sounds.     

Perceptual effects of preceding nonspeech rate on temporal properties of speech categories

The rate of context speech can influence phonetic perception. This study investigated the bounds of rate dependence by observing the influence of nonspeech precursor rate on speech categorization. Three experiments tested the effects of pure-tone precursor presentation rate on the perception of a [ba]-[wa] series defined by duration-varying formant transitions that shared critical temporal and spectral characteristics with the tones. Results showed small but consistent shifts in the stop-continuant boundary distinguishing [ba] and [wa] syllables as a function of the rate of precursor tones, across various manipulations in the amplitude of the tones. The effect of the tone precursors extended to the entire graded structure of the [w] category, as estimated by category goodness judgments. These results suggest a role for durational contrast in rate-dependent speech categorization.     

Verbal mediation and memory for novel figural designs: a dual interference study

To the extent that all types of visual stimuli can be verbalized to some degree, verbal mediation is intrinsic in so-called "visual" memory processing. This impurity complicates the interpretation of visual memory performance, particularly in certain neurologically impaired populations (e.g., aphasia). The purpose of this study was to investigate the relative contributions of verbal mediation to recognition memory for visual stimuli that vary with respect to their amenability to being verbalized. In Experiment 1, subjects attempted to verbally describe novel figural designs during presentation and then identify them in a subsequent recognition memory test. Verbalizing these designs facilitated memory. Stimuli that were found to be easiest or most difficult to verbalize at the group level were retained for the second study. In Experiment 2, subjects evidenced superior recognition memory for the relatively easy to verbalize items. This advantage was attenuated in subjects who performed a concurrent verbal interference task during encoding, but not in those who performed an analogous visual interference task. These findings provide evidence that impoverished verbal mediation disproportionately impedes memory for visual material that is relatively easy to verbalize. Implications for the clinical assessment of visual memory are discussed.     

Structural contingency theory and individual differences: examination of external and internal person-team fit

This article develops and tests a structurally based, integrated theory of person-team fit. The theory developed is an extension of structural contingency theory and considers issues of external fit simultaneously with its examination of internal fit at the team level. Results from 80 teams working on an interdependent team task indicate that divisional structures demand high levels of cognitive ability on the part of teammembers. However, the advantages of high cognitive ability in divisional structures are neutralized when there is poor external fit between the structure and the environment. Instead, emotional stability becomes a critical factor among teammembers when a divisional structure is out of alignment with its environment. Individual differences seem to play little or no role in functional structures, regardless of the degree of external fit.