Souther, 1985). The second stimulus set, the affective-face set, which included three different affective faces, has been 1793© As an initial step toward developing a theory of visual concealment, we assessed whether people would use factors known to influence visual search difficulty when the degree of concealment of objects among distractors was varied. In Experiment 1, participants arranged search objects (shapes, emotional faces, and graphemes) to create displays in which the targets were in plain sight but were either easy or hard to find. Analyses of easy and hard displays created during Experiment 1 revealed that the participants reliably used factors known to influence search difficulty (e.g., eccentricity, target-distractor similarity, presence/absence of a feature) to vary the difficulty of search across displays. In Experiment 2, a new participant group searched for the targets in the displays created by the participants in Experiment 1. Results indicated that search was more difficult in the hard than in the easy condition. In Experiments 3 and 4, participants used presence versus absence of a feature to vary search difficulty with several novel stimulus sets. Taken together, the results reveal a close link between the factors that govern concealment and the factors known to influence search difficulty, suggesting that a visual search theory can be extended to form the basis of a theory of visual concealment.
Background: Individuals with neurodevelopmental disorders (NDD) are at increased risk for suicide, yet little work has been done to address the specific needs for this population. Specifically, there are no validated suicide risk screening instruments and processes for individuals with NDD; this study aimed to assess the opinions of individuals with NDD and their therapists on suicide risk screening in order to inform best practices for screening. Method: A pilot study was launched to qualitatively evaluate processes and instruments that may be used in future studies on suicide screening risk in NDDs. Participants and their therapists were surveyed after filling out suicide risk screening instruments and provided qualitative feedback on their opinions of screening for suicide risk. Results: Most participants (9/15) reported positive experiences of being screened for suicide risk. Additionally, almost all therapists (14/15) were in support of suicide risk screening. Several themes, such as interpersonal benefits, emerged as reasons for supporting screening. Conclusions: The findings from this pilot study provide initial qualitative evidence that many individuals with NDD and their therapists would be comfortable with and are in support of suicide risk screening for this population. Screening tools to guide clinicians on how to ask about suicide risk are needed and appear to be desired by clinicians on the frontlines of mental health treatment for people with NDD.
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