Saccadic eye movements and dual-task interference

Four dual-task experiments required a speeded manual choice response to a tone in a close temporal proximity to a saccadic eye movement task. In Experiment 1, subjects made a saccade towards a single transient; in Experiment 2, a red and a green colour patch were presented to left and right, and the saccade was to which ever patch was the pre-specified target colour. There was some slowing of the eye movement, but neither task combination showed typical dual-task interference (the “psychological refractory effect”). However, more interference was observed when the direction of the saccade depended on whether a central colour patch was red or green, or when the saccade was directed towards the numerically higher of two large digits presented to the left and the right. Experiment 5 examined a vocal second task, for comparison. The findings might reflect the fact that eye movements can be directed by two separate brain systems--the superior colliculus and the frontal eye fields; commands from the latter but not the former may be delayed by simultaneous unrelated sensorimotor tasks.     

Self-image bias and the perception of other persons' skills

Previous research on the Self-image bias' has demonstrated a defensive tendency to overestimate the importance of positive general self-attributes (e.g. warm, patient) when forming impressions of other people. The current research replicates and extends the self-image bias findings in an area of theoretical as well as applied relevance: The evaluation of other peoples specific skills, and resulting social preferences.     

Residential Transience,Major Depressive Episodes,and the Risk of Suicidal Thoughts,Plans, and Attempts

The association between past‐year residential transience (frequent moving) and suicidal ideation among a nationally representative sample of over 190,000 U.S. adults was evaluated. Suicidal thoughts, plans, and attempts were more prevalent among transient adults. Among adults without major depressive episodes (MDE), transience was associated with 70% to 90% greater odds of suicidal ideation compared to nontransient adults. Among adults with MDE, transience was associated with a 60% to 80% increased odds of suicidal ideation compared to nontransient adults. Residential transience may be an indicator for increased suicide risk even in the absence of depression.