Predictability and Variability of a Dynamic Environment Impact Affordance Judgments

Abstract

A crucial component of locomotion and mobility is the successful navigation of apertures (e.g., doorways, lanes, corridors). While much research has studied perceptions of action capabilities in a static environment, far less work has considered how action capabilities change in a dynamic environment, particularly when the environment moves in unpredictable ways. The current experiment assessed actors’ perceptions of aperture passability for a dynamically moving gap. In an immersive virtual environment, participants were seated in a wheelchair rolling toward a sliding door while the door oscillated to various widths. The patterns of oscillation were manipulated in terms of their amplitude (sequence standard deviation), predictability (sequence sample entropy), and base width (sequence mean) in a within-participants design. Participants gave judgments of passability within a temporal occlusion paradigm. Results showed that both the amplitude and predictability of the oscillating door impacted the reliability of passability judgments. We suggest that these variables act to alter the salience of optical constraints (e.g., attractors and repellors) within a dynamical systems framework.     

Metacognition in nurse practitioner students: How nurse educators can best serve their students

The dynamic and changing healthcare environment requires educators to prepare nurse practitioner students with more than knowledge and skills. Healthcare providers need to be prepared with enhanced skills related to critical thinking and decision making. Metacognition training has been used by many disciplines within and outside of healthcare to prepare individuals to work in an environment that has volatility, uncertainty, complexity, ambiguity, and delayed feedback (VUCAD). This retrospective exploratory study uses computerized strategic management simulation (SMS) data to address the question: What parameters of metacognition do master's level nurse practitioner (NP) students excel versus underperform? Elements of Presentation: Presentation will include SMS parameters linked with the National Organization of Nurse Practitioner Faculties (NONPF) Core Competencies. In doing this, faculty can better assess students' individualized learning needs and tailor their academic education to address specific needs. Fifty-nine master's level students completed SMS, measuring five unique parameters of metacognition (Crisis, Task, Strategy, People & Information Management). Students' mean and median scores were observed to be high range for crisis management; and moderate range for task management, strategy management, and people management. Conversely, mean and median scores were in the low range for information management. Knowledge gained from this study can be used for curriculum development and planning to ensure that the parameters of metacognition are demonstrated throughout the curriculum's content delivery, training exercises, and evaluation methods. Knowledge related to areas in which NP students score in the low range can be added to courses to assist students better.     

Psychological adjustment among African American breast cancer patients: one-year follow-up results of a randomized psychoeducational group intervention.

The effectiveness of support group interventions for cancer patients has been established among White patients but has been virtually unstudied among minority patients. The current study represents the 1st randomized support group intervention targeted to African American women with breast cancer. Participants (N = 73) with nonmetastatic breast cancer were randomly assigned to an 8-week group intervention or an assessment-only control condition At 12 months, the intervention resulted in improved mood as well as improved general and cancer-specific psychological functioning among women with greater baseline distress or lower income. Subsequent research is needed to address effective methods of enrolling and following women with fewer psychosocial and financial resources, as they were the most likely to benefit from this particular intervention.