An Open Trial of Web-Based Mindfulness-Based Cognitive Therapy for Perinatal Women at Risk for Depressive Relapse

Depression occurring during pregnancy and postpartum (i.e., the perinatal period) is common and associated with adverse outcomes for women and their offspring. Mindfulness-based cognitive therapy (MBCT) has been shown to reduce risk for depressive relapse among at-risk individuals generally, and recent adaptations document the efficacy of MBCT among perinatal women specifically. In addition, MBCT, when delivered using a web-based format (Mindful Mood Balance [MMB] program), has demonstrated acceptability and feasibility for at-risk individuals generally. The aim of the present open trial study was to examine the feasibility, acceptability, and preliminary outcomes of MMB for use with pregnant women at risk for depressive relapse (N = 37). We predicted that MMB would be feasible and acceptable as assessed by session completion and participation in phone coaching calls, home practice completion, and self-reported satisfaction via questionnaire and interview. We also predicted that women would not demonstrate significant worsening of depression symptom severity during MMB, consistent with our focus on prevention. A brief case example based on a composite of participants is presented to illustrate the MMB structure and content and the phone coaching protocol. Participants demonstrated engagement with the program, reported perceiving benefits in the intended depression prevention targets of MMB, and sustained minimal to mild depressive symptom severity over the course of the program. Given these promising results and the potential benefits of averting depression for women and their families, further development and rigorous testing of MMB among at-risk pregnant women is warranted.     

Neuromuscular effects of shifting the focus of attention in a simple force production task

Research on the focus of attention has begun exploring the physiological changes that underlie the difference between internal and external foci of attention. However, previous electromyography studies have used dynamic tasks, making it difficult to interpret electrophysiological data. The authors analyzed how the focus of attention affects a subject's ability to perform an isometric force production task (focus was directed either at the force platform or the muscles responsible for force production). Subjects received practice without attentional focus instructions and then completed blocks of trials with an external and internal attentional focus separately. An external focus led to significantly less error overall and reduced surface electromyography activity with lower median power frequencies in the antagonist muscle, but attentional focus had no effects on the agonist muscle. Thus, an external focus of attention led to more efficient motor unit recruitment patterns (reduced cocontraction) and improved performance. Posttest surveys revealed subjects were aware of their improved performance with an external focus.     

Searching for the structure of coping: a review and critique of category systems for classifying ways of coping

From analyzing 100 assessments of coping, the authors critiqued strategies and identified best practices for constructing category systems. From current systems, a list of 400 ways of coping was compiled. For constructing lower order categories, the authors concluded that confirmatory factor analysis should replace the 2 most common strategies (exploratory factor analysis and rational sorting). For higher order categories, they recommend that the 3 most common distinctions (problem- vs. emotion-focused, approach vs. avoidance, and cognitive vs. behavioral) no longer be used. Instead, the authors recommend hierarchical systems of action types (e.g., proximity seeking, accommodation). From analysis of 6 such systems, 13 potential core families of coping were identified. Future steps involve deciding how to organize these families, using their functional homogeneity and distinctiveness, and especially their links to adaptive processes.     

Representation and retrieval of arithmetical facts: Developmental difficulties

One form of developmental difficulty with arithmetic affects the storage or retrieval of arithmetical facts, such as tables, which are required to implement arithmetical computations (Temple, 1991, 1994). Such difficulties may arise because of impairment in a specialized system for the storage of arithmetical facts or as a result of causally linked impairment in another cognitive domain. This study explored issues concerning the representation and retrieval of arithmetical facts in children with number fact disorders (NF) and in normal children, in particular the status of hypothesized linked impairments: short-term memory (STM) spans, counting skills, speed of speech, and speed of number fact and lexical retrieval. There was no evidence that NF children had weak STM spans on any span measure or that STM spans related to arithmetical fact skills. There was also no evidence that NF children had weak counting abilities or free counting speeds. The NF children were slower in speeded counting, which also correlated with number fact skill. The significance or not of this is discussed. The NF children were also slower than controls in speed of speech and on some measures of speed of access. However, the absence of correlation with number fact skill, the absence of generality across tasks, and the possibility that delayed speeds in fact retrieval reflect the use of alternative strategies, together suggest that the increased speeds are not causally linked to number fact skill. The results are consistent with modular accounts, in which there is a specialized system for the storage and retrieval of arithmetical facts.     

Speed-accuracy tradeoffs in rapid bimanual aiming movements

Two experiments reported the effect of movement time and knowledge of results on overall spatial errors in rapid simultaneous bimanual aiming movements. In Exps. 1 (n=32) and 2 (n=32), participants used light, aluminum levers oriented vertically in the sagittal plane to make reversal movements over the same distance (20 degrees - 20 degrees or 60 degrees - 60 degrees) or different distances (20 degrees - 60 degrees) in each arm in 250, 350, or 450 msec. to the reversal point. The participants in Exp. 1 were given knowledge of results on the spatial and temporal accuracy for both arms, while in Exp. 2 knowledge of results was provided for one arm only. Strong speed-accuracy tradeoffs were shown for all groups in both experiments, but errors were larger in the different distance movements compared to the same distance groups. Spatial errors were also elevated in Exp. 2 when knowledge of results was not available compared to those conditions where knowledge of results was available. Overall, bimanual speed-accuracy tradeoffs are similar to single arm movements when one moves the same distance in each arm and when knowledge of results is available.     

Macro-contexts for learning: Initial findings and issues

The purpose of this paper is to explore the use of video-based technologies to create macro-contexts that can facilitate comprehension and learning. A theoretical rationale for the use of macro-contexts is considered, and the results of three experiments are described. The experiments involve very simple uses of technology yet show positive results. The results suggest that more sophisticated uses of technology, especially computer-controlled interactive videodiscs, should have even greater benefits on comprehension and learning. The findings provide a rationale for conducting more extensive investigations that utilize sophisticated technologies.     

Effect of bandwidth knowledge of results on movement consistency

The effect of "bandwidth" knowledge of results (KR), given only if the subject's response is outside of a certain movement-time bandwidth, on learning and performance of a rapid elbow-flexion movement was examined. Subjects were randomly assigned to one of three feedback groups, a 5% bandwidth group (BW5), a 10% bandwidth group (BW10), or a control group (KR), who received knowledge of results on every trial. Subjects moved a light, horizontal, aluminum lever through 60 degrees in 200 msec., for 100 acquisition trials with KR given depending on group and 25 transfer trials without KR (transfer phase). Although the subjects in the BW10 group received knowledge of results fewer times during acquisition, they showed less within-subject variability than the BW5 and KR groups on the transfer test which suggests that giving KR about a relatively large bandwidth enhances movement consistency.     

Time requirements of changes in program and parameter variables in rapid ongoing movements

Two experiments investigated the differences in processing time requirements of two types of modifications of a rapid ongoing movement. In response to a signal presented at either 0, 100, or 200 msec after initiation of a 400-msec horizontal arm movement, subjects attempted to either increase the speed of the movement or to reverse it. EMG modification latencies were shorter in the former condition than in the latter indicating a difference in processing-time requirement between modification types. The results support the generalized motor program hypothesis of Pew (1974) and Schmidt (1976) in that increasing the speed of an ongoing movement may require modification of a parameter variable while reversing movement direction requires the implementation of a new motor program.