The Influence of Attentional Focus on Balance Control over Seven Days of Training

This study examined the training effect of attentional focus (external focus, internal focus, or no focus instructions) on a dynamic balance task. Participants completed baseline balance testing, seven consecutive days of dynamic balance board training, and retention testing 24 hours after the last session. The novel finding of this study was the presence of a training effect on balance control when adopting an external focus relative to an internal focus or no focus instructions. Further, we report the unique observation that more patterned behavior was adopted regardless of the focus instructions. These findings provide insight into how instructions can be altered to enhance human balance control and complement the constrained-action hypothesis.     

Reciprocal Relationships Between Parenting Behavior and Disruptive Psychopathology from Childhood Through Adolescence

Theoretical models suggest that child behaviors influence parenting behaviors, and specifically that unpleasant child behaviors coerce parents to discontinue engaging in appropriate discipline. This study examined reciprocal relationships between parenting behaviors (supervision, communication, involvement, timid discipline and harsh punishment) and child disruptive disorder symptoms (ADHD, ODD and CD) in a clinic-referred sample of 177 boys. Annual measures, including structured clinical interviews, were obtained from the beginning of the study (when boys were between the ages of 7 to 12) to age 17. Specific reciprocal influence was observed; only timid discipline predicted worsening behavior, namely ODD symptoms, and ODD symptoms predicted increases in timid discipline. Greater influence from child behaviors to parenting practices was found: ODD also predicted poorer communication and decreased involvement, and CD predicted poorer supervision. ADHD was neither predictive of, nor predicted by, parenting behaviors. The results are specifically supportive of a coercive process between child behaviors and parenting behaviors, and generally suggestive of greater influence of child behaviors on parenting behaviors than of parenting behaviors on child behaviors.     

An Examination of Established Antecedents of Power in Purchase Decision Making: Married and Nontraditional Couples

This research examined the extent that resource theory, sex-role orientation, least interested partner hypothesis, and involvement apply to cohabiting heterosexual, gay, and lesbian couples. Findings revealed that (a) resources significantly affected only married partners' relative influence and strategy usage; (b) sex-role orientation significantly affected relative influence for married partners and strategy selection for partners in both types of heterosexual couples; (c) least interest significantly affected relative influence for partners in both types of heterosexual couples and influence strategy selection for cohabi-tors; and (d) involvement significantly affected relative influence and strategy usage for all couple types. Overall, the effect of the antecedents on relative influence and strategy usage depends on the extent that partners within any couple type are similar on various antecedents.     

Evolving standards and regulation: Exploring the development and provision of closed circuit television in the United Kingdom

This article explores the emergence of standards and regulation associated with the provision of Closed Circuit Television (CCTV) surveillance systems in the United Kingdom. It argues that despite the intrusive and controlling nature of CCTV technology there is limited formal intervention in the form of legislation, governing its introduction and use. Instead government has sought to influence the regulation of the technology indirectly through its ability to shape and govern policy networks in the policy arena. In doing so, it is argued here, that government remains the dominant actor in the policy process. He is director of the Public Management and Administration degree program. His research interests focus on the emerging governance structures associated with the development of electronic public services, citizenship, and democracy in the information age.     

Cerebral lateralization of visual stimulus recognition in stutterers and fluent speakers

Cerebral lateralization of stutterers and nonstutterers was assessed in terms of choice reaction times to stimuli presented to either the left or right visual hemifield on letter recognition and figure recognition tasks. Reaction times on both tasks were determined before and after a behavioral speech therapy program. Stutterers demonstrated a significant reduction in mean reaction times in the letter recognition task over the course of the therapy program. This change differed significantly from that obtained from stutterers in the figure recognition task. The stutterers' responses were in contrast to the responses of the nonstutterers, who showed no reduction in mean reaction times for the letter or figure recognition tasks. The results were discussed in terms of alterations in aspects of central nervous system processing as a result of participation in the behavioral speech therapy.     

Spatial-frequency-contingent color aftereffects: adaptation with one-dimensional stimuli.

The McCollough effect was shown to be spatial-frequency selective by Lovegrove and Over (1972) after adaptation with vertical colored square-wave gratings separated by 1 octave. Adaptation with slide-presented red and green vertical square-wave gratings separated by 1 octave failed to produce contingent color aftereffects (CAEs). However, when each of these gratings was adapted alone, strong CAEs were produced. Adaptation with vertical colored sine-wave gratings separated by 1 octave also failed to produce CAEs, but strong effects were produced by adaptation with each grating alone. By varying the spatial frequency of the test sine wave, CAEs were found to be tuned for spatial frequency at 2.85 octaves after adaptation of 4 cycles per degree (cpd) and at 2.30 octaves after adaptation of 8 cpd. Adaptation of both vertical and horizontal sine-wave gratings produced strong CAEs, with bandwidths ranging from 1.96 to 2.90 octaves and with lower adapting contrast producing weaker CAEs. These results indicate that the McCollough effect is more broadly tuned for spatial frequency than are simple adaptation effects.     

Assaultive behavior resulting from marital conflict

Recent evidence shows that dangerous acts, especially serious ones, are highly likely to be directed against family members. This fact calls for interpersonal assessment of dangerous behavior. The present authors have undertaken preliminary study of fighting behavior (verbal and physical) between married couples. A semistructured interview procedure has been devised to establish the methods used by both partners in carrying on their disputes. The authors propose that there are three broad types of fighting patterns to be found:constant high—sustained level of balanced antagonism;unpredictable volatile—low level of overt antagonism with occasional difficult-to-predict highly violent episodes;steady escalation—increasing levels of violence over time. Data from one couple representing each pattern are presented to demonstrate different parts of the interview schedule.     

Effects of changing compatibility relationships on reaction time to the first stimulus in a double-stimulation task

This study investigated the effects of manipulating the response requirement to the second stimulus (S2) on reaction time (RT) to the first stimulus (S1) in a double-stimulation choice RT task. Forty subjects responded to the 100 msec presentation of a left or right light by pressing the key on the same or opposite side as the light. Treatment conditions included a single-stimulation control (no S2 presented), and two double-stimulation conditions each requiring two responses (R1 and R2) in close succession, in one of these latter conditions, the rule governing R2 was the same as that governing R1 while, in the other, the rule governing R2 changed. Results showed the typical double-stimulation effect; i.e., increased latency of R1 when it was followed by S2 - R2. More importantly, R1 latency was increased further when the rules governing R1 and R2 were different. Results are discussed in terms of divided preparation capacity as well as other theories of the psychological refractory period.