How do Motor Systems Deal with the Problems of Controlling Three-Dimensional Rotations?

Rotations are fundamental to motor control, not only for orienting to stimuli but also in the joint articulations that underlie translational movements. Studying three-dimensional (3-D) rotations of the simplest joint system, the eye, has provided general insights into the neural control of movement. First, in selecting one 3-D eye orientation for each two-dimensional (2-D) gaze direction, the oculomotor system generates a behavior called Listing's law that constrains eye position to a 2-D plane, Listing's plane. This selection is made internally by an inverse kinematic transformation called the Listing's law operator. Second, the oculomotor system incorporates the inherent multiplicative relationship between rotational velocity and position to generate the 3-D movement and position commands required by Listing's law. Finally, the coordinate systems for these commands appear to align with Listing's plane rather than with anatomic structures. Recent investigations have revealed similar behavioral constraints in the orientations of the head and arm, suggesting that the neural mechanisms for Listing's law may have analogues in many motor systems.     

A Bibliometric Analysis of the Quantitative Mental Health Literature in Occupational Therapy

ABSTRACT

A bibliometric analysis was performed to examine the impact and use of the peer-reviewed occupational therapy intervention effectiveness literature addressing adults with mental illness, 2000–2016. Of 2,597 articles, 68 were quantitative studies assessing an intervention for adults with mental illness. These studies had a collective citation count of 1,455 and were published in 29 journals in 14 countries. The majority (n?=?36; 52.94%) were randomized controlled and two-group controlled studies. The most commonly assessed interventions were life skills and community reintegration (n?=?20, 29.41%) and supported employment (n?=?16, 23.52%). Sixty-five (95.58%) studies found statistically significant results on the primary or secondary outcomes.     

Toward an Understanding of the Connections in Creating Lasting Family Connections

Abstract

The Creating Lasting Family Connections^® (CLFC) program is designed to help improve relationship skills and reduce antisocial behaviors. Strader and colleagues propose that prosocial connectedness is responsible for program outcomes. We propose that the intersection of high agreeableness and low impulsivity represent an operational definition. We examined this definition in the context of a RCT with 246 men in prison reentry. CLFCFP increased the number of connected individuals. Being connected and the program independently impacted relationship skills, but no evidence was found to support the hypothesis that the program impacts would be more pronounced among those who were connected.     

Langdon Gilkey: In Memoriam

Langdon Gilkey died on 19 November 2004. This article reviews his career and examines elements in his systematic theology such as: (1) fallenness in human nature; (2) the transcendence and graciousness of God; (3) the Neo-Orthodox agenda; (4) creation and the dialogue with science; and (5) inter-religious dialogue. Gilkey's theological method of responding to human experience with the Christian message through a process of interpreting symbols is critically evaluated. This article is simultaneously published in Dialog and Theology and Science.     

UNDERMINING AND CONSTRUCTING COHERENCE IN TRADITIONAL NARRATIVE PARADIGMS: CONTEMPORARY VIEWS

Using both images and metaphor proved an effective qualitative method in our study with adolescent girls who use crystal methamphetamine. The combination increased the depth of learning by inviting less calculated responses and the breadth of learning by allowing for consideration of societal and contextual dimensions of experience. In this article, we demonstrate how combining images and metaphors in qualitative inquiry can enable researchers to resist the tendency to distill complex experiences down to manageable forms. In so doing, we offer a contextualized perspective of how change may occur, thus reconceptualizing our roles as practitioners.