Vection in depth during treadmill walking

Vection has typically been induced in stationary observers (ie conditions providing visual-only information about self-motion). Two recent studies have examined vection during active treadmill walking--one reported that treadmill walking in the same direction as the visually simulated self-motion impaired vection (Onimaru et al, 2010 Journal of Vision 10(7):860), the other reported that it enhanced vection (Seno et al, 2011 Perception 40 747-750; Seno et al, 2011 Attention, Perception, & Psychophysics 73 1467-1476). Our study expands on these earlier investigations of vection during observer active movement. In experiment 1 we presented radially expanding optic flow and compared the vection produced in stationary observers with that produced during walking forward on a treadmill at a 'matched' speed. Experiment 2 compared the vection induced by forward treadmill walking while viewing expanding or contracting optic flow with that induced by viewing playbacks of these same displays while stationary. In both experiments subjects' tracked head movements were either incorporated into the self-motion displays (as simulated viewpoint jitter) or simply ignored. We found that treadmill walking always reduced vection (compared with stationary viewing conditions) and that simulated viewpoint jitter always increased vection (compared with constant velocity displays). These findings suggest that while consistent visual-vestibular information about self-acceleration increases vection, biomechanical self-motion information reduces this experience (irrespective of whether it is consistent or not with the visual input)

Enhancing Access to Family Planning Services in Medicaid: A Toolkit for States

Important aspects of family planning coverage—including eligibility levels, benefits, and payment policies— vary by state. This toolkit provides an overview of the issues that most affect access to family planning services and supplies, and the policy options available to state Medicaid agencies to enhance access. To enable evaluation of the current family planning landscape and monitor progress toward improved access, this toolkit also provides an inventory of data analyses

CIL\u27s New Generative AI Policy

The Editors-in-Chief of Communications in Information Literacy discuss the development of the journal\u27s new generative artificial intelligence (AI) policy

Guiding Future Practices: A Review of Parent and Family Services

Working with college students often includes working with their parents and families. Higher education institutions across the US have addressed this cultural shift with the creation of parent and family services. As research illustrates continued relationships between students and their parents, student affairs practitioners will need to address this need. This article is a call for student affairs professionals to be creative and proactive when focusing on the future needs of parents and families of college students. Innovations for parent and family services, including the use of technology and the need for collaboration between on-campus departments, are shared

Rural Caregivers: Identification of Informational Needs through Telemedicine Questions

OBJECTIVES: The prevalence of Alzheimer\u27s disease and associated disorders is increasing. Rural residents in the United States have less access to memory care specialists and educational and community resources than in other areas of the country. Over a decade ago, we initiated an interdisciplinary rural caregiving telemedicine program to reach Kentucky residents in areas of the state where resources for supporting individuals with dementia are limited. Telemedicine programs involve a short informational presentation followed by a question and answer session; programs are offered 4 times a year. The purpose of this study was to explore questions asked over 1 year of the rural caregiving telemedicine program-encompassing 5 programs-to identify the scope of dementia-related knowledge gaps among attendees. METHODS: Questions from the 5 programs were recorded and content analyzed to identify areas of frequent informational requests. RESULTS: There were a total of 69 questions over the 5 sessions. For each program, questions ended due to time constraints rather than exhausting all inquiries. The most common topical areas of questions related to risk factors, behavioral management, diagnosis, and medications. DISCUSSION AND IMPLICATIONS: This study highlights that rural caregivers in Kentucky have diverse dementia educational needs. Rural communities may benefit from additional, targeted resources addressing these common areas of unmet informational needs

258— Differential response to cocaine in mice exposed to stress

Exposure to trauma is a risk factor for substance use disorders. Using a mouse model of PTSD, we tested the effects of exposure to a stressor (synthetic fox pheromone: TMT) on response to cocaine. Cocaine induced locomotion and cocaine seeking behavior in a conditioned place preference (CPP) were assessed. TMT was an effective stressor, indicated by freezing behavior, which is a known fear response in mice. In both males and females, TMT-exposed mice showed a greater locomotor response to cocaine compared to control mice, resulting in the interaction between time and TMT treatment. TMT-exposed males, but not females, were overall more active than control mice. During CPP, female mice were first conditioned to associate one side of a 3-chambered arena with cocaine (10 mg/kg) and then tested in a 30-minute session of free exploration (15 minutes of cue-prime, 15 minutes of drug-prime). Time spent inside the drug-associated context was considered an indication of the rewarding properties of cocaine. Results indicated no group differences between female mice exposed to TMT and those that weren’t. Additionally, mice only displayed a preference for the cocaine-paired chamber during cue-primed testing. After receiving a cocaine-prime (10 mg/kg), mice did not continue this behavior

Evidence against an ecological explanation of the jitter advantage for vection

Visual-vestibular conflicts have been traditionally used to explain both perceptions of self-motion and experiences of motion sickness. However, sensory conflict theories have been challenged by findings that adding simulated viewpoint jitter to inducing displays enhances (rather than reduces or destroys) visual illusions of self-motion experienced by stationary observers. One possible explanation of this jitter advantage for vection is that jittering optic flows are more ecological than smooth displays. Despite the intuitive appeal of this idea, it has proven difficult to test. Here we compared subjective experiences generated by jittering and smooth radial flows when observers were exposed to either visual-only or multisensory self-motion stimulations. The display jitter (if present) was generated in real-time by updating the virtual computer-graphics camera position to match the observer’s tracked head motions when treadmill walking or walking in place, or was a playback of these head motions when standing still. As expected, the (more naturalistic) treadmill walking and the (less naturalistic) walking in place were found to generate very different physical head jitters. However, contrary to the ecological account of the phenomenon, playbacks of treadmill walking and walking in place display jitter both enhanced visually induced illusions of self-motion to a similar degree (compared to smooth displays)

System for detecting and estimating concentrations of gas or liquid analytes

A sensor system for detecting and estimating concentrations of various gas or liquid analytes. In an embodiment, the resistances of a set of sensors are measured to provide a set of responses over time where the resistances are indicative of gas or liquid sorption, depending upon the sensors. A concentration vector for the analytes is estimated by satisfying a criterion of goodness using the set of responses. Other embodiments are described and claimed

Outcome Measures in Rheumatology - Interventions for medication Adherence (OMERACT-Adherence) Core Domain Set for Trials of Interventions for Medication Adherence in Rheumatology: 5 Phase Study Protocol

Background: Over the last 20 years, there have been marked improvements in the availability of effective medications for rheumatic conditions such as gout, osteoporosis and rheumatoid arthritis (RA), which have led to a reduction in disease flares and the risk of re-fracture in osteoporosis, and the slowing of disease progression in RA. However, medication adherence remains suboptimal, as treatment regimens can be complex and difficult to continue long term. Many trials have been conducted to improve adherence to medication. Core domains, which are the outcomes of most relevance to patients and clinicians, are a pivotal component of any trial. These core domains should be measured consistently, so that all relevant trials can be combined in systematic reviews and meta-analyses to reach conclusions that are more valid. Failure to do this severely limits the potential for trial-based evidence to inform decisions on how to support medication adherence. The Outcome Measures in Rheumatology (OMERACT) - Interventions for Medication Adherence study by the OMERACT-Adherence Group aims to develop a core domain set for interventions that aim to support medication adherence in rheumatology. Methods/design: This OMERACT-Adherence study has five phases: (1) a systematic review to identify outcome domains that have been reported in interventions focused on supporting medication adherence in rheumatology; (2) semi-structured stakeholder interviews with patients and caregivers to determine their views on the core domains; (3) focus groups using the nominal group technique with patients and caregivers to identify and rank domains that are relevant to them, including the reasons for their choices; (4) an international three-round modified Delphi survey involving patients with diverse rheumatic conditions, caregivers, health professionals, researchers and other stakeholders to develop a preliminary core domain set; and (5) a stakeholder workshop with OMERACT members to review, vote on and reach a consensus on the core domain set for interventions to support medication adherence in rheumatology. Discussion: Establishing a core domain set to be reported in all intervention studies undertaken to support patients with medication adherence will enhance the relevance and the impact of these results and improve the lives of people with rheumatic conditions.The OMERACT-Adherence Group receives funding from OMERACT, which will be used to support a patient research partner in the OMERACT-Adherence Group to attend the OMERACT conference. OMERACT (http://www.omeract.org, contact: secretariat [email protected]) is the primary sponsor responsible for approving the initiation and overviewing the ongoing progress and management of the study. OMERACT mentors overview the design and conduct of the studies, including the interpretation of data and preparation, and review and approval of manuscripts. The following funding organisations had no role in the design and conduct of the studies; collection, management, analysis and interpretation of the data; or preparation, review or approval of manuscripts. AK is supported by the Arthritis Australia Scholarship funded by the Allan and Beryl Stephens Grant from the Estate of the Late Beryl Stephens. AT is supported by a National Health and Medical Research Council Fellowship (1037162). RC’s employer, the Parker Institute, Bispebjerg, and Frederiksberg Hospital, is supported by a core grant (OCAY-13-309) from the Oak Foundation. Phases 1–3 of the OMERACT-Adherence study were funded by a 2018 Arthritis Australia project grant (major funder), and a private research grant provided by Professor Stephen Hall

Fiction Fix 13

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