Aging and the role of working memory resources in visuospatial attention

Visuospatial attention has been shown to be robust to the effects of increasing age. Nonetheless, models linking individual differences in working memory capacity to attentional performance suggest that older adults may experience disruptions in visuospatial attention under conditions of resource load. Two experiments were conducted to investigate the effects of age and concurrent working memory load on two tasks that have been proposed to require posterior attentional processes. The findings suggest that loading working memory resources selectively disrupts performance on a nonintegrated Stroop task, whereas cue utilization remains intact. In addition, imposing a working memory load delays the deployment of visuospatial attention in both experiments. Regarding the effects of age, findings suggest that older adults can effectively perform both attentional tasks despite working memory load. Age differences did emerge in the time course of cue utilization. Findings point to the resilience of visuospatial attention in aging, even under conditions of significant cognitive load. We discuss these results and their implications for models postulating a role for working memory capacity in attentional behaviors.     

Drug-induced amnesia hurts recognition, but only for memories that can be unitized

Midazolam is a drug that creates temporary anterograde amnesia. In a within-subjects, double-blind experiment, participants studied a list of stimuli after receiving an injection of midazolam in one session and after receiving saline in another session. The lists consisted of three types of stimuli: words, photographs, and abstract pictures. Recognition memory was tested at the end of each session. Memory was reliably poorer in the midazolam condition than the saline condition, but this amnesic effect was significantly smaller for pictorial stimuli than for words and almost nonexistent for abstract pictures. We argue that the less familiar the stimulus, the less likely it is to be associated with an experimental context. These data bolster our claim that unitization increases the chances of episodic binding and that drug-induced amnesia prevents episodic binding regardless of unitization.     

“Not in My Back Yard”: The Situational and Personality Determinants of Oppositional Behavior1

The present study considered situational and dispositional factors underlying behavioral opposition characteristic of a “not‐in‐my‐back‐yard” (NIMBY) response to a change having adverse personal consequences. Students considered the proposition of comprehensive exams required for graduation taking effect in the near or distant future (high and low vested interest, respectively). Although both groups had similarly negative attitudes toward the idea, the high vested interest group perceived greater personal consequence and expressed greater intention to oppose the plan. From a situational‐dispositional interactionist perspective, it was the impact of the situation (perceived stake), rather than personality traits presumed to underlie a NIMBY response, that proved to be the primary determinant of oppositional behavior.     

Subject–Aux Inversion in Children with SLI

Journal of Psycholinguistic Research - An elicited production study investigated subject–aux inversion in 5-year-old children with specific language impairment (SLI) and 2 control groups,...