Precuing benefits for color and location in a visual search task

Selection in multiple-item displays has been shown to benefit immensely from advance knowledge of target location (e.g., Henderson, 1991), leading to the suggestion that location is completely dominant in visual selective attention (e.g., Tsal & Lavie, 1993). Recently, direct selection by color has been reported in displays in which location does not vary (Vierck & Miller, 2005). The present experiment investigated the possibility of independent selection by color in a task with multiple-item displays and location precues in order to see whether color is also used for selection even when target location does vary and supposedly dominant location precues can be used. Precues provided independent information about the location and color of a target, and each type of precue could be either valid or invalid. The precues were followed by brief displays of six letters in six different colors, and participants had to discriminate the case of a prespecified target letter (e.g., R vs. r). Performance was much better when location cues were valid than when they were invalid, confirming the large advantage associated with valid advance location information. Performance was also better with valid advance color information, however, both when location cues were valid and when they were invalid. But these color benefits were dependent on the closeness of the colored letter to the cued location. Our results thus suggest that selection by color in a multiple-item display, where location and color information are independent from each other and equalized, is mediated by location information.     

Optimism across cultures: In response to the severe acute respiratory syndrome outbreak

Based on our early research, we predicted that the Chinese may be more optimistic and less pessimistic than North Americans in response to negative life events. A survey was conducted to investigate optimism cross culturally in the context of the severe acute respiratory syndrome (SARS) outbreaks in Canada and China. Chinese students in Beijing and European Canadians in Toronto answered questions about their perceptions of SARS. No significant cultural difference was found on dispositional optimism, as measured by the Revised Life Orientation Test (LOT-R). Unrealistic optimism was measured in the context of SARS. Both groups demonstrated unrealistic optimism (i.e. reporting that the self was less likely than an average person to get infected with SARS). Such optimistic bias was stronger among Chinese than among Canadians. Compared to the actual infection rates in Beijing and Toronto, both Chinese and Canadian participants overestimated their own chances of getting infected, indicating that they were being pessimistic. Indeed, Chinese were less pessimistic than Canadians. In addition, even though the Chinese reported more inconvenience brought by SARS than did Canadians, they also reported more positive changes brought by SARS, reflecting the Chinese dialectical views of events. Implications for research on optimism in context are discussed.     

Changes in Attitudes Toward Religion Among Those with Mental Illness

Despite the increased attention given to the religious experiences of those with mental illness, the specific nature of the changes in religious attitudes that occur within this population remain yet unknown. In this study, 406 individuals with persistent mental illness who attended one of 13 Los Angeles County Mental Health facilities completed a demographic questionnaire, an adapted version of the Religious Coping Index, and the Symptom Checklist 90-R. Over 54% of the participants reported a change in their religious beliefs such that their faith became stronger or weaker as a result, and 66% perceived these changes to be positive in nature. Qualitative codings suggest that a constructive or destructive use of religion and the quality of one's self-image and relationship with God are the primary themes underlying these changes. Those changes that were predominantly positive were associated with less severe symptomatology and more religious coping when compared to predominantly negative changes. These findings suggest that religious attitudes may be an ongoing and dynamic part of the experience of mental illness that should be considered in the treatment and research afforded by mental health professionals.     

Pilot Evaluation of Outcomes of Combined Parent-Child Cognitive-Behavioral Group Therapy for Families at Risk for Child Physical Abuse

Child physical abuse (CPA) is not only a highly prevalent public health problem, but it has been associated with a wide range of debilitating psychosocial sequelae that may develop during childhood and persist into adulthood. This paper outlines a treatment model, Combined Parent-Child Cognitive-Behavioral Therapy (CPC-CBT), that addresses the complex needs of the parent who engages in physically abusive behavior and the traumatized child. This pilot program was conducted to examine the feasibility of a CBT group approach that incorporates the child into the offending parent's treatment. It highlights the use of gradual exposure, developing a trauma narrative and abuse clarification to address PTSD symptoms in children. Parent components include motivational interviewing and consequence review, cognitive and behavioral anger-control strategies, and the examination of parent-child interactions to assist parents in modulating their emotions, remaining calm, and using effective problem-solving during child-rearing situations. Pilot data examining pre- to posttreatment changes for parents and children participating in the 16-week group treatment program are presented. Participants were 12 caregivers, ages 25 to 54, and their 21 children, ages 4 to 14, who were referred for the treatment of issues related to CPA. About 48% of participating parents were referred for substantiated CPA against their children, while the other parents were deemed to be at-risk for CPA. Both parents and children reported significant pre- to posttreatment reductions in the use of physical punishment. Results also demonstrated pre- to posttreatment improvements in parental anger toward their children, and consistent parenting as well as children's posttraumatic stress symptoms and behavioral problems. Clinical and research implications for these preliminary findings are discussed.     

Brain mechanisms associated with background monitoring of the environment for potentially significant sensory events

Background monitoring is a necessary prerequisite to detect unexpected changes in the environment, while being involved in a primary task. Here, we used fMRI to investigate the neural mechanisms that underlie adaptive goal-directed behavior in a cued task switching paradigm during real response conflict or, more generally, when expectations on the repetitive features of the environment were violated. Unexpected changes in sensory stimulus attributes in the currently unattended stimulus dimension thereby led to activations in a bilateral network comprising inferior lateral frontal, intraparietal, and posterior medial frontal brain regions, independent of whether these attributes elicited a factual response conflict or not. This fronto-parietal network may thus play an important role in adaptive responding to potentially significant events outside the current focus of attention.     

Connectionism and dynamic systems: are they really different?

We propose that connectionism and dynamic systems theory are strong contenders for a general theory of development that holds true whatever the content domain. We illustrate, through our own career narratives, the origins of these theories in motor and language development. We situate connectionism and dynamic systems among other classic and contemporary theories and conclude that, although there are meaningful differences, these differences pale in relation to the shared assumptions about the fundamental processes and mechanisms of change.     

Developmental changes in death anxiety in childhood

A sample of 49 children divided into three age groups (3–4 years, 7–8 years, and 10–11 years) responded to a pictorial derivation of Spielberger's State Anxiety Inventory for Children (STAIC). Three pictures were used as stimuli, in addition to words, for the measure of death anxiety. The intensity measure was the response to six Hebrew mood adjectives as the child chose one of seven schematic face drawings ranging from positive to negative expressions. Reliabilities were comporable to the longer versions of the Hebrew STAIC with older children. Findings indicated significant differences in anxiety scores between the age groups, with older subjects showing higher levels of anxiety. The advantage of a single measure of death anxiety appropriate for a wide age range is discussed, as well as the implication for a developmental pattern of death anxiety.