Visually guided step descent in children with Williams syndrome

Individuals with Williams syndrome (WS) have impairments in visuospatial tasks and in manual visuomotor control, consistent with parietal and cerebellar abnormalities. Here we examined whether individuals with WS also have difficulties in visually controlling whole-body movements. We investigated visual control of stepping down at a change of level in children with WS (5-16-year-olds), who descended a single step while their movement was kinematically recorded. On each trial step height was set unpredictably, so that visual information was necessary to perceive the step depth and position the legs appropriately before landing. Kinematic measures established that children with WS did not use visual information to slow the leg at an appropriate point during the step. This pattern contrasts with that observed in typically developing 3- and 4-year-old children, implying severe impairment in whole-body visuomotor control in WS. For children with WS, performance was not significantly predicted by low-level visual or balance problems, but improved significantly with verbal age. The results suggest some plasticity and development in WS whole-body control. These data clearly show that visuospatial and visuomotor deficits in WS extend to the locomotor domain. Taken together with evidence for parietal and cerebellar abnormalities in WS, these results also provide new evidence for the role of these circuits in the visual control of whole-body movement.     

Executive function as a function of sub-clinical psychopathy

Some aspects of executive function are thought to be dysfunctional in psychopathic individuals. We administered a small battery of neuropsychological tests (spatial alternation task, object alternation task, and Porteus Maze) to two samples of college students and obtained a measure of psychopathy via a self-report questionnaire. Psychopathic traits were related to the tests of object alternation and Porteus Maze but not to the spatial alternation task. Our results support the hypothesis of orbitofrontal cortex (OFC) dysfunction with sparing of dorsolateral prefrontal cortex (DLPFC) in psychopathy and provide a downward extension of this theory to sub-clinical levels of psychopathy.     

Male Athletes and the Cult(ure) of Thinness in Sport

This article troubles the “down low” (DL) discourse by focusing on an Internet forum—Craigslist.org—where people on the “down low” post. The advertisements, gathered from seven cities in two U.S. regions, reinforce some of the “down low” discussion in the previous literature, as they show a pattern of seeking “masculine” men. These ads also depart from general perceptions such as the DL being a term used predominantly by black men. The authors discuss methodological implications in research with posts, and suggest advancing analyses on the relationship between race, sexuality and power, and gender and sexuality in DL research.     

On the representation of intentions: Do personally relevant consequences determine activation?

The intention-superiority effect describes shorter latencies for reactions to stimuli intended for future enactment, relative to stimuli associated with no enactment or canceled enactment. Previous attempts to demonstrate an intention-superiority effect for other types of tasks—for instance, observing the experimenter executing actions—have not yielded an intention-superiority effect. A reason for this could be that the typical enactment task was associated with a higher degree of personal relevance than were other laboratory-based tasks and that task importance or its consequences heighten the accessibility of intention-relevant materials. In two experiments, we demonstrate an intention-superiority effect for different types of tasks (e.g., monitoring a video clip) when task realization has personally relevant consequences in terms of a performance evaluation. In contrast, we found no intention-superiority effect when future enactment had no personally relevant consequences for participants. These findings imply that the intention-superiority effect is not restricted to actions but occurs generally for relevant plans.     

Maternal sensitivity and overt aggression in young children with Down syndrome

Children with genetic syndromes offer a unique opportunity to combine genetic and environmental approaches to the study of aggression. Children with genetic syndromes associated with developmental delay are at increased risk for behavior problems, but little is known about risk and resilience factors. In this study, we examined maternal sensitivity of mothers of children with Down syndrome using home observations when their children were 2, 3, and 5 years old, and relations with maternal reports and observations of overt aggression at school at age 5. Maternal sensitivity at ages 2 and 3 years did not significantly predict child aggression at age 5, but low maternal sensitivity at age 5 was significantly related to overt aggression at both home and school. By replicating and extending earlier work, this study informs developmental theory and identifies an important maternal variable related to aggression in children with Down syndrome.     

Accuracy and perspective in involuntary autobiographical memory

This study investigated accuracy (veridicality) and perspective (point of view) in everyday involuntary memories (i.e. spontaneous recollections of the past). Using the naturalistic diary method, subjects were asked to give confidence ratings on the accuracy of their involuntary memories as well as contact others who were present in them, having them also give confidence ratings. Memory perspective was assessed by asking subjects to indicate whether their memories had a field (original) or observer (the perspective of another) point of view. The results showed subjects assigning high confidence ratings to involuntary memories, which did not differ from the confidence ratings given by others, or from the confidence ratings that they had assigned to their voluntary memories. The perspective query showed that involuntary memories come with both field and observer perspectives, and that their relative proportions did not differ from those reported for their voluntary memories. Copyright © 2009 John Wiley & Sons, Ltd.     

Acquaintance and the sublime: an alternative account of theistic sublime experience

In this paper I argue that when one has an epiphany of the form ‘God is F’ (e.g., ‘God is wise’) upon having a sublime experience one can be accurately described as being acquainted with the fact that God is F as opposed to inferring that God is F from the experience at hand. To argue for this, I will, first, outline what a sublime experience is, in general, before outlining what a theistic sublime experience is in particular. Second, I will outline two ways of understanding theistic sublime experiences. First, I will outline a model that I will call the ‘inference model’ which, put simply, says that when one has an epiphany of the form ‘God is F’, upon having a theistic sublime experience, one is drawing this conclusion via a process of ‘inference-to-the-best-explanation’ (Chignell and Halteman in: Costelloe (ed) The sublime: From antiquity to the present, Cambridge University Press, Cambridge, 2012, p. 426). Second, I will outline an alternative model that I call the ‘acquaintance model’ which, put simply, says that no inferential process occurs when one has an epiphany of the form ‘God is F’ upon having a theistic sublime experience, but one is made directly aware of the fact that God is F. Third, and finally, I will respond to some objections to the acquaintance model.     

The effects of enactment and intention accessibility on prospective memory performance

The intention-superiority effect denotes faster response latencies to stimuli linked with a prospective memory task compared to stimuli linked with no prospective task or with a cancelled task. It is generally assumed that the increased accessibility of intention-related materials contributes to successful execution of prospective memory tasks at an appropriate opportunity. In two experiments we investigated the relationship between the intention-superiority effect and actual prospective memory performance under relatively realistic conditions. We also manipulated enactment versus observation encoding to further investigate the similarity in representations of enacted and to-be-enacted tasks. Additionally, Experiment 1 included a control condition to investigate the development of the intention-superiority effect over time. Participants were asked to perform prospective tasks at the end of the experiment to prepare the room for the next participant. They studied these preparatory tasks at the beginning of the experiment either by enacting them themselves or by observing the experimenter perform them. In Experiment 2, participants in a control condition did not intend to perform prospective tasks. We observed a smaller intention-superiority effect after enactment encoding than after observation encoding, but only if response latencies were assessed immediately before the prospective memory task. In addition, Experiment 2 suggested that the size of the intention-superiority effect is related to successful prospective memory performance, thus providing evidence for a functional relationship between accessibility and memory.     

Lazos que Atan: The Influence of Normative Gender Beliefs on Sexual Risk Behaviors of Latino Men and Women

Not all Latino men and women conform to proscribed gender roles. Nonetheless, their sexual risk taking may well be influenced by traditional beliefs concerning these roles. We explored the relationship between gender beliefs that are normative in Latino culture, and the sexual risk behaviors of 152 Latino men and women who participated in a behavioral rapid needs assessment survey in Houston, TX. Path—analytic results indicate that normative gender beliefs are influenced by respondents' sex and their levels of acculturation and that these 2 variables influence sexual risk behaviors, including unprotected sex and multi partnerism. Our results suggest that beliefs about gender influence sexual behavior and, therefore, are an important factor that should be considered in understanding sexual risk taking among Latinos.