Flashbulb Memories for September 11th can be Preserved in Older Adults

Flashbulb memories (FMs) are vivid, long-lasting memories for the source of surprising, arousing news. Laboratory studies have consistently found that older adults, especially those with below-average frontal lobe (FL) function, are impaired in source memory relative to young. We tested memory for the source of news concerning the September 11th terrorist attacks in older adults with high or low frontal lobe function and in young people. We found no age differences in source memory a year after the event and no differences related to FL function. Flashbulb memories may be different from usual cases of source memory because of their emotional content, personal importance, or social relevance.     

Stressing the Flesh: In Defense of Strong Embodied Cognition

In a recent paper, Andy Clark (2008) has argued that the literature on embodied cognition reveals a tension between two prominent strands within this movement. On the one hand, there are those who endorse what Clark refers to as body‐centrism, a view which emphasizes the special contribution made by the body to a creature’s mental life. Among other things, body centrism implies that significant differences in embodiment translate into significant differences in cognition and consciousness. On the other hand, there are those who endorse what Clark calls extended functionalism, a view which sees the mind as the joint product of the computational resources presented by (i) intracranial processing, (ii) bodily input, and (iii) environmental scaffolding. As such, extended functionalism allows for the possibility that any contribution of the body to cognition and consciousness can be compensated for by the other two contributing factors. While Clark’s sympathies lie with the latter approach, we argue in favour of the former. In particular, we focus on consciousness and argue that the unique contribution the body makes to a creature’s manifold of phenomenal experience cannot be compensated for, in the manner, and on the scale, that Clark envisages.     

A comparison of types of support for lower-skill workers: Evidence for the importance of family supportive supervisors

The work–family literature to date does not offer a clear picture in terms of the relative importance of different types of supports for balancing work and family demands. Grounded in conservation or resources theory, we develop an integrative model relating multiple forms of social support, both formal (i.e., work–life benefit use) and informal (supervisor work–family support and family support) to work-interference-with-family and family-interference-with-work and task and contextual performance. We chose to focus our study on lower-skill workers because, despite being a relatively large segment of the workforce, these workers are relatively understudied in the work–family literature. Results revealed that supervisor support is a key form of support in this sample. Supervisor support had negative same domain (work-interference-with-family) and cross domain (family-interference-with-work) effects with work–family conflict, as well as positive relationships with task and contextual performance. Family support was negatively related to family-interference-with-work; whereas use of work–life benefits was not significantly related to either form of work–family conflict or any of the performance variables. The implications of our results for conservation of resources theory and practical implications to employers of lower-skill workers are discussed.     

Evaluation of fixed momentary dro schedules under signaled and unsignaled arrangements

Fixed momentary schedules of differential reinforcement of other behavior (FM DRO) generally have been ineffective as treatment for problem behavior. Because most early research on FM DRO included presentation of a signal at the end of the DRO interval, it is unclear whether the limited effects of FM DRO were due to (a) the momentary response requirement of the schedule per se or (b) discrimination of the contingency made more salient by the signal. To separate these two potential influences, we compared the effects of signaled versus unsignaled FM DRO with 4 individuals with developmental disabilities whose problem behavior was maintained by social-positive reinforcement. During signaled FM DRO, the experimenter presented a visual stimulus 3 s prior to the end of the DRO interval and delivered reinforcement contingent on the absence of problem behavior at the second the interval elapsed. Unsignaled DRO was identical except that interval termination was not signaled. Results indicated that signaled FM DRO was effective in decreasing 2 subjects' problem behavior, whereas an unsignaled schedule was required for the remaining 2 subjects. These results suggest that the response requirement per se of FM DRO may not be problematic if it is not easily discriminated.     

Replies to Kane,McCormick, and Vargas

This is a reply to discussions by Robert Kane, Kelly McCormick, and Manuel Vargas of Shaun Nichols, Bound: Essays on Free Will and Responsibility.     

Language Difficulty at School Entry and the Trajectories of Hyperactivity-Inattention Problems from Ages 4 to 11: Evidence from a Population-Representative Cohort Study

Latent growth curve modelling was used to contrast the developmental trajectories of hyperactivity-inattention (H-I) problems across childhood for children with a language difficulty at the start of school and those with typical language and to examine if the presence of a language difficulty moderates the associations of child, parent and peer predictors with these trajectories. Unconditional and language-status conditional latent growth curves of H-I problems were estimated for a large nationally representative cohort of children, comprising 1627 boys (280 - language difficulty) and 1609 girls (159 - language difficulty) measured at age 4 to 5, 6 to 7, 8 to 9 and 10 to 11. Multiple regression tested interaction between language status and predictors of the level and slope of the trajectory of H-I problems. On average, boy’s H-I behaviours showed temporal stability while for girls H-I decreased over time with a slower rate of decrease with age. For both boys and girls, the levels of H-I problems were persistently elevated for those with a language difficulty compared to their peers. Neither the shape nor rate of change of H-I problems were associated with language status. Child sociability predicted the rate of growth in H-I for boys with a language difficulty but not for other boys. Child prosocial behaviours and parental psychological distress predicted the rate of growth in H-I for girls with a language difficulty but not for other girls. Parental hostility was associated with the rate of growth only for boys with typical language. The findings indicate that having a language difficulty at school entry is associated with persistently higher levels of H-I problems across childhood and moderates the rate of their growth in some circumstances.     

Biased Lineup Instructions: Examining the Effect of Pressure on Children's and Adults' Eyewitness Identification Accuracy1

Two experiments were conducted to examine the effects of pressure on lineup decisions across child and adult eyewitnesses. In both experiments, participants were exposed to a target via videotape and then presented with a 6‐person, target‐absent lineup. Pressure was manipulated via lineup instructions (neutral vs. biased instructions). With neutral lineup instructions, children had a higher false‐positive rate than did adults. With biased lineup instructions, children's patterns of false‐positive responding paralleled that of adults; that is, an increase in false positives occurred. These results suggest that social pressure may not be the only factor driving children's higher false‐positive responding, compared to adults. Potential factors that may be affecting children's lineup decision processes are discussed.     

Attentional spreading in object-based attention

The authors investigated 2 effects of object-based attention: the spread of attention within an attended object and the prioritization of search across possible target locations within an attended object. Participants performed a flanker task in which the location of the task-relevant target was fixed and known to participants. A spreading attention account predicts that object-based attention will arise from the spread of attention through an attended object. A prioritization account predicts that there will be a small, if any, object-based effect because the location of the target is known in advance and objects are not required to prioritize the deployment of attentional search. The results suggested that object-based attention operates via the spread of attention within an object.     

Can a Lineup Procedure Designed for Child Witnesses Work for Adults? Comparing Simultaneous,Sequential, and Elimination Lineup Procedures

A study (N = 165) was conducted to examine whether the elimination lineup, an identification procedure developed for children to reduce their false‐positive responding, was effective for adult witnesses. Although the sequential lineup is available to help reduce adults’ false‐positive identifications, having different procedures for child and adult witnesses poses difficulty for the police and justice system. One procedure for all witnesses would be ideal. Simultaneous, sequential, and elimination procedures were compared. The elimination procedure produced a comparable correct rejection rate to the sequential procedure. Both the elimination and sequential procedure produced a higher correct rejection rate than did the simultaneous procedure. Correct identification rates were comparable across the 3 lineup procedures.     

Family,friend, and neighbour child care providers and maternal well‐being in low‐income systems: An ecological social perspective

Integrating theory from the family ecological systems and social support literatures with findings from child care research, in this study we develop and test a model relating family, friend, and neighbour (FFN) child care provider characteristics to perceived child care quality (provider reports of caregiving behaviours, mother‐provider caregiving relationship) and maternal well‐being (work‐family conflict, depressive symptoms). Results from phone interviews with 187 FFN providers receiving public subsidies indicated that even after controlling for familial status or household income, caregiver perceptions of higher quality care were associated with higher education levels, greater attachment to child care as a job; and lower provider depressive symptoms. After controlling for familial status, data analysed from a subset of 51 mother‐provider pairs, indicated that mothers using care from providers who reported higher quality parent‐caregiver social relationships reported lower work‐family conflict and depressive symptoms. This study suggests mothers who have providers with whom they have good caregiving interactions may experience positive social support and psychological crossover dynamics associated with mother well‐being.