Flexible attention allocation to visual and auditory working memory tasks: manipulating reward induces a trade-off

Prominent roles for general attention resources are posited in many models of working memory, but the manner in which these can be allocated differs between models or is not sufficiently specified. We varied the payoffs for correct responses in two temporally-overlapping recognition tasks, a visual array comparison task and a tone sequence comparison task. In the critical conditions, an increase in reward for one task corresponded to a decrease in reward for the concurrent task, but memory load remained constant. Our results show patterns of interference consistent with a trade-off between the tasks, suggesting that a shared resource can be flexibly divided, rather than only fully allotted to either of the tasks. Our findings support a role for a domain-general resource in models of working memory, and furthermore suggest that this resource is flexibly divisible.     

Visual short-term memory always requires general attention

The role of attention in visual memory remains controversial; while some evidence has suggested that memory for binding between features demands no more attention than does memory for the same features, other evidence has indicated cognitive costs or mnemonic benefits for explicitly attending to bindings. We attempted to reconcile these findings by examining how memory for binding, for features, and for features during binding is affected by a concurrent attention-demanding task. We demonstrated that performing a concurrent task impairs memory for as few as two visual objects, regardless of whether each object includes one or more features. We argue that this pattern of results reflects an essential role for domain-general attention in visual memory, regardless of the simplicity of the to-be-remembered stimuli. We then discuss the implications of these findings for theories of visual working memory.     

The development of cynicism

Two experiments explored the development of cynicism by examining how children evaluate other people who make claims consistent or inconsistent with their self-interests. In Experiment 1, kindergartners, second graders, and fourth graders heard stories with ambiguous conclusions in which characters made statements that were aligned either with or against self-interest. Older children took into account the self-interests of characters in determining how much to believe them: They discounted statements aligned with self-interest, whereas they accepted statements going against self-interest. Experiment 2 examined children's endorsement of three different explanations for potentially self-interested statements: lies, biases, and mistakes. Like adults, sixth graders endorsed lies and bias as plausible explanations for wrong statements aligned with self-interest; younger children did not endorse bias. Implications for the development of cynicism and children's understanding of bias are discussed.     

Evaluation of behavioral skills training for teaching abduction-prevention skills to young children

This study examined the effectiveness of individual behavioral skills training in conjunction with in situ training in teaching 13 preschool children abduction prevention skills. Children's performance was measured during baseline, training, and at 2-week, 1-month, and 3-month follow-ups using in situ assessments in which abduction prevention skills were measured in naturalistic settings. Results revealed that all the children learned the skills and all the children available at the 2-week and 1-month follow-ups maintained the skills at criterion level. All but 3 children's criterion-level performances were maintained at the 3-month follow-up as well.     

Teaching safety skills to children to prevent gun play: an evaluation of in situ training

This study evaluated behavioral skills training with added in situ training for teaching safety skills to prevent gun play. Following baseline, each child received two sessions of behavioral skills training and one in situ training session. Additional in situ training sessions were conducted until the child exhibited the safety skills (don't touch the gun, get away, and tell an adult). All children acquired and maintained the safety skills at a 3-month follow-up. In addition, of the 7 children assessed in a dyad situation, all exhibited the correct skills in the presence of another child.     

Incremental validity in the psychological assessment of children and adolescents

Incremental validity in the process of psychological assessment of children and adolescents is explored. The authors highlight the dependence of the incremental validity of assessment information on factors such as goal of assessment, other information available, base rate of the problem or outcome, age or gender of the child, and type of problem being assessed. The authors discuss the incremental validity of assessment information from alternate sources, methods, and constructs. In view of the limited number of studies directly relevant to incremental validity in child clinical assessments, the authors call for more clinically relevant research. To have the greatest impact on child and adolescent services, this research must be readily generalized and immediately relevant to actual clinical practice.     

Majority reaction to shifting and stable attitudinal deviates

Female undergraduates, in groups of four, voted several times on appropriate treatment for a delinquent, using an electrical signalling device. Two simulatedgroup members consistently agreed with subjects' initial position. A third simulated member (target) exhibited one of nine response patterns. In six movement conditions (which formed a 2 × 3 design), the target (a) gradually moved a short distance toward or away from modal group opinion and (b) manifested high, medium, or low net agreement with the majority position. In three stable conditions, the target consistently (a) agreed with modal opinion, (b) disagreed, or (c) took a neutralposition. In movement conditions, the target was evaluated significantly more favourably in the toward than in the away condition and in the high agreement than in the medium and low agreement conditions. In stable conditions, the agreeing target was liked significantly better than the neutral and disagreeing targets. The target's response pattern also affected subjects' attributions about the target's motives, communication to the target (in notes interspersed between votes), and opinion change. Results were discussed in terms of previous research dealing with majority reaction to moving and stable attitudinal deviates.     

Children's explanations of the intentions underlying others' behaviour

This study investigated developmental differences in children's explanations of the intentions underlying the behaviours of others, including behaviours that conflicted with their expectations. Children aged 6–13 and adults explained the intentions underlying their predictions of behaviour following stories with ambiguous, positive, and negative cues. Children were then presented with experimenter–provided conflicting behaviour and explained again. Results indicated that with no clear cues, children and adults had optimistic expectations. When cues were provided, participants across development provided explanations consistent with positive cues, but children under age 10 were reluctant to provide explanations consistent with negative cues, despite good recall. When explaining conflicting behaviour, people may hesitate to overlook suspicions of negative intent sometimes even in the face of good behaviour, and this reluctance may increase with age. Findings suggest we may all overcome an optimistic bias, but children under age 10 may struggle more to do so.