An experimental investigation of the impact of the Lidcombe Program on early stuttering

Preliminary Phase I and II trials for the Lidcombe Program of early stuttering intervention have found favorable outcomes and that the treatment is safe. Although speech-language pathologists (SLPs) often need to intervene with pre-schoolers' early stuttering, many of these children will recover at some time in the future without such intervention. Consequently, they need to know whether the Lidcombe Program's effect on stuttering is greater than that of natural recovery. Participants were 23 pre-school children who were randomly assigned to either a control group or a treatment group that received the Lidcombe Program for 12 weeks. A repeated measures ANOVA showed no main effect on stuttering for the group (control/treatment), a significant main effect for the measurement occasion (at the start and at the end of the treatment period), and a significant interaction between group and measurement occasion. Stuttering in the treatment group reduced twice as much as in the control group. These results are interpreted to mean that the introduction of the Lidcombe Program has a positive impact on stuttering rate, which exceeds that attributable to natural recovery.     

Adolescents' knowledge and beliefs about pregnancy: the impact of "ENABL"

Finding effective ways to prevent adolescent pregnancy is a concern of public health officials, educators, social workers, parents, and legislators. Numerous programs exist, but there is debate as to whether it is the specific program itself or other factors that are responsible for participants' successful outcomes. Using a quasi-experimental design, this study sought to determine which factors predicted changes in knowledge and beliefs among middle school students (N = 1,450) after exposure to Postponing Sexual Involvement (PSI), the curricular component of Education Now and Babies Later (ENABL), a pregnancy prevention program. It was found that the single most important predictor of improvement in knowledge and beliefs about pregnancy prevention was PSI itself, not background variables. The findings contradict some of the previous studies on factors impacting teenage pregnancy and lend support for the continued examination of ENABL as a promising component of pregnancy prevention efforts.     

Long-term memory for elementary visual percepts: memory psychophysics of context and acquisition effects

In the first phase of each of two experiments, participants learned to associate a set of labels (i.e., consonant-vowel-consonant [CVC]) with a set of line lengths by using a paired-associate learning procedure. In the second phase of each experiment, these learned labels were used as memorial standards in the method of constant stimuli. Psychometric functions and the associated indices of discriminative performance (i.e., Weber fractions [WFs], just noticeable difference, and point of subjective equality) were then obtained for the remembered standards. In Experiment 1, WFs (i.e., the indices of memory precision) obtained with remembered standards were found to be higher (i.e., had poorer discriminability) than were WFs obtained with perceptual standards. In addition, WFs obtained with the remembered standards exhibited serial position effects (i.e., poorer discriminability for central items in the memory ensemble) and systematically varied with set size (i.e., the number of standards in the memory set), but WFs obtained with perceptual standards did not depend on serial position or set size. In Experiment 2, increasing the number of acquisition trials reduced WFs and diminished serial position effects. In addition, WFs did not vary systematically with the "physical" spacing between the standards in memory, but they did with the ordinal spacing. The results are consistent with a noisy analogue representation of remembered magnitudes, whereby central items in a memory ensemble are subject to lateral inhibition and thus reduced discriminability. Finally, presentation order effects, as defined by the classic time-order error, were observed with purely perceptual comparisons but not with comparisons involving a remembered standard. This latter finding is inconsistent with a strong form of the functional equivalence view of perception and memory.     

Quantitative Electroencephalography (QEEG) and Neuropsychological Syndrome Analysis

The ideographic, syndrome analysis and the nomothetic, standardized test battery approaches to neuropsychological assessment are compared and contrasted within the context of advances in noninvasive technology readily available for use within the examiner's office. By demonstrating the relative strengths and benefits of syndrome analysis, it is suggested that this approach provides a thorough and efficient method of neuropsychological assessment. Subsequently, the utility of an a priori hypothesis testing process approach as a critical technique in syndrome analysis will be supported. It will be proposed that QEEG procedures provide a useful method for further substantiating conclusions generated from a syndrome analysis approach to neuropsychological assessment. Two cases are described demonstrating the utility and flexibility of the QEEG as a confirmatory test of localization following syndrome analysis. In summary, the contributions that neuropsychologists make to the understanding of brain–behavior relationships may be strengthened by combining neuropsychological and neurophysiological assessment methods.     

Between two selves: comparing global and local predictors of speed of switching between self-aspects

Self-concepts are composed of multiple self-aspects that vary in their momentary accessibility. When a particular self-aspect is active, it guides one’s cognition and behavior in a context-specific fashion. The current research quantified the ease with which people switch from one active self-aspect to another using a novel reaction time approach. Specifically, two studies tested how self-aspect switching speed is influenced by global (i.e., self-complexity) and local (i.e., self-aspect importance) features of the self-concept. The findings revealed that people transition between self-aspects more slowly when switching from a more important self-aspect to a less important one. In other words, important self-aspects are privileged within the working self-concept.     

Reactions of African American Students to the George Zimmerman Trial: Co-Rumination and Thought Intrusions as Mediators

We document how prior experiences with racism, sequentially mediated by co-rumination about racial problems with a friend and thought intrusions, are associated with negative reactions to a racially charged event—the fatal shooting of Trayvon Martin by George Zimmerman and the subsequent trial and acquittal of Mr. Zimmerman. African Americans’ prior experiences with racial discrimination predicted more co-rumination about racial problems with a friend. In turn, co-rumination was associated with more thought intrusions about the trial, leading to more negative affect and less forgiveness for Zimmerman. Co-rumination about racism and worrisome thinking about high-profile race-related events may amplify concern about racism for a frequent target of racial discrimination, lowering the threshold for negative psychological reactions to racist acts (including acts of violence) that may happen to other African Americans or to oneself.     

Moving along to things left undone

This paper expands on three areas of clinical theory that are introduced and discussed in the lead paper and the others in this symposium. The first issue addressed is the concept of the real relationship as used in the moment of meeting model of psychotherapeutic change. Particular focus has been placed on the past, the present, and the hierarchy of goals in the treatment relationship. Second, the paper explores the concept of implicit relational knowledge with attention to the concepts of transference, countertransference, interpretation, and insight in the change process. Finally, the paper attends to the nature of the “now moment” in the moment of meeting model. Specifically explicated are ways this concept relates to changes in brain organization and also ways the moment of meeting model relates to other psychotherapy models, such as the relational schools and self-psychology. © 1998 Michigan Association for Infant Mental Health