Contingent capture by color is sensitive to categorical color perception.

Contingent capture (CC) theory postulates that attention can only be captured by top-down matching stimuli. Although the contingent capture of attention is a well-known and thoroughly studied phenomenon, there is still no consensus on the characteristics of the top-down template which guides the search for colors. We tried to replicate the classical contingent capture effect on color (Experiment 1) and then added linguistic processing to this perceptual effect (Experiment 2). In Experiment 1, attention was indeed captured by the cues of the same color as the target, while the cues of different colors were successfully ignored. In Experiment 2, the cue color was never identical to the target color but would either belong to the same linguistic category or not (i.e., linguistic matching and linguistic nonmatching cues). In both cases, cues were made to be equally perceptually distant from the target. Although, attention was captured by both cue types, the degree of capture was significantly higher for linguistic matching cues. Our research replicated the classic contingent capture effect but on color, and also demonstrated the effect of color categories in the search task. In short, we demonstrated the effect of color categories in the search task. Results show that the template for color search contains physical characteristics of color, as well as information about color category names.

Psychiatric admission as a risk factor for posttraumatic stress disorder.

Psychiatric hospitalization poses a risk for Posttraumatic Stress Disorder (PTSD), partly because of coercion. However, the role of legal status is less clear, while factors like insight, exposure to violence and affective disorders have not been addressed adequately. The present study aims at assessing PTSD rates after hospitalization and evaluating the potential role of these factors. 98 inpatients were assessed for PTSD, insight, main diagnosis, adverse events during hospitalization and legal status. Assessment took place at discharge (T1) and three months later (T2). Three months after discharge, 74.2% of patients with affective disorders met symptom-criteria for PTSD. Voluntarily hospitalized patients had more severe PTSD-symptoms. This relation vanished after controlling for affective disorders. The latter, as well as exposure to violence were the most significant risk factors at T2. Female gender, marital status (not married) and employment status (not employed), were additional risk factors at T1, while involuntary medication had a negative effect on PTSD-symptoms. Voluntarily hospitalized patients are more vulnerable to PTSD, due to higher rates of affective disorders. Females suffering from affective disorders who are not married and not employed should be monitored for PTSD symptoms during and after hospitalization, especially if exposed to violence.