Apparent afterimage size, Emmert's law, and oculomotor adjustment

The apparent size of an afterimage viewed from distances between 5 cm and 580 cm was matched to that of a size-adjustable stimulus at a fixed distance (20, 30, 90, and 200 cm). The experiment was conducted under normal indoor illumination with a procedure that facilitated matching for angular size. The matched size was found to increase with focal distance within 1 m and very little beyond 1 m. Similar results were obtained with an equivalent series of real stimuli subtending a constant visual angle. These findings suggest a scaling in perceived angular size in proportion to the oculomotor adjustments for accommodation and convergence. The observations of perceived angular size of the afterimage complement what Emmert's law is meant to describe (perceived object size of the afterimage), even though as the focal distance decreases it may be increasingly difficult to tease out perceived object size and perceived angular size with the matching procedure.     

An evaluation of crisis hotline outcomes. Part 2: Suicidal callers

In this study we evaluated the effectiveness of telephone crisis services/hotlines, examining proximal outcomes as measured by changes in callers' suicide state from the beginning to the end of their calls to eight centers in the U.S. and again within 3 weeks of their calls. Between March 2003 and July 2004, 1,085 suicide callers were assessed during their calls and 380 (35.0%) participated in the follow-up assessment. Several key findings emerged. Seriously suicidal individuals reached out to telephone crisis services. Significant decreases in suicidality were found during the course of the telephone session, with continuing decreases in hopelessness and psychological pain in the following weeks. A caller's intent to die at the end of the call was the most potent predictor of subsequent suicidality. The need to heighten outreach strategies and improve referrals is highlighted.     

Differentiating cognitive content between depressed and anxious outpatients

Quantitative research suggests that depressed and anxious patients can be differentiated based on their cognitive content. This study used qualitative research methods to separate the specific components of open-ended depressive and anxious thought content in 79 psychiatric outpatients. Patients with major depressive disorder (MDD; n = 36), generalized anxiety disorder (GAD; n = 10), and other psychiatric disorders (PC; n = 33) were instructed to (a) describe their most bothersome problem; (b) imagine the worst possible negative outcome followed by the best possible positive outcome; and (c) describe associated thoughts and emotions for each scenario. The content of patients' responses were coded to examine (a) the types and severity of problems; (b) the presence or absence of hopelessness, catastrophizing, hopefulness, and unrealistic positive expectations; and (c) the presence or absence of particular emotions associated with imagined worst and best outcomes. More GAD patients than MDD and PC patients indicated anticipated anxious emotions associated with imagined worst outcomes, and fewer MDD patients than GAD and PC patients indicated anticipated happiness associated with imagined best outcomes. No group differences emerged for the other variables considered. These findings suggest that depressed and anxious patients differ in their cognitive expectancies about future life events in terms of their own anticipated emotional reactions.     

Development of behavioural regulation in Do and Don't contexts among behaviourally inhibited Chinese children

Behavioural inhibition influences the development of behavioural regulation in early childhood. Previous studies have mainly focused on the relationship between inhibition and regulation in the Don't context (e.g., inhibitory control), while few have investigated this relationship in the Do context (e.g., task persistence). This longitudinal study examined the effect of temperamental inhibition on behavioural regulation during both the Do and Don't contexts in 112 Chinese preschoolers. At 3.5 years of age, children's behavioural inhibition was assessed by behavioural observation and parental report, and then at 4.5 years of age, their regulatory behaviours were measured in the following two challenging contexts: Do [locked box (LB)] and Don't [toy inhibition (TI)]. In each task, children were randomly assigned to either a high‐ or a low‐incentive condition designed to vary the value of a given goal. Results suggested that higher inhibition was associated with poorer regulation (lower task persistence) in both conditions of the Do context (LB), whereas in the Don't context (TI) highly inhibited children showed better regulation (less violation behaviours) in the low‐incentive condition than they did in the high‐incentive condition. The results highlight the context characteristics and goal incentive as important factors for behavioural regulation development in inhibited children in China.     

梁漱溟的宗教社会思想

梁漱溟一生竭力复兴中国文化的合理价值,努力重构儒学体系向现代形态转变,他以一种宗教式的超越气度,带着一种救世主的姿态,思考整个人类的关怀和中国社会的危机,试图重建新的价值体系与意义世界来回应西方文化的挑战,提出了著名的"文化三路向"说,其宗教社会思想是他对中国以及整个人类未来命运思考的结果.他认为中国没有系统宗教,儒学非宗教,但她发挥了类似于宗教的作用,维系中国社会秩序稳定运转.     

Carbon dioxide narcosis modifies the patch leaving decision of foraging parasitoids

Gleaning information is a way for foragers to adjust their behavior in order to maximize their fitness. Information decreases the uncertainty about the environment and could help foragers to accurately estimate environmental characteristics. In a patchy resource, information sampled during previous patch visits is efficient only if it is retained in the memory and retrieved upon arrival in a new patch. In this study, we tested whether the braconid Asobara tabida, a parasitoid of Drosophila larvae, retains information gleaned on patch quality in the memory and adjusts its foraging behavior accordingly. Females were anesthetized with CO₂ after leaving a first patch containing a different number of hosts and were allowed to visit a second patch containing only kairomones. CO₂ is known to erase unconsolidated information from the memory. We show that in the absence of a short CO₂ narcosis, females responded according to their previous experience, whereas anesthetized females did not. The anesthetized females stayed a given time in the second patch irrespective of what they encountered before. CO₂ narcosis had no effect on the residence time of the non-experienced females in a patch containing hosts or only kairomones in comparison with the non-anesthetized females that had a previous foraging experience. We conclude that CO₂ narcosis erases the effect of the previous patch quality, perhaps due to a memory disruption. Direct information processing is likely to be involved in parasitoid decision making through retention of the information on the previous patch quality into a CO₂ sensitive memory.     

The impact of age at seizure onset on the likelihood of atypical language representation in children with intractable epilepsy

Studies have suggested that early postnatal lesions are associated with a greater likelihood of atypical speech representation than lesions acquired later in life. Comparison groups have been defined differently across studies, with age typically being treated as a dichotomous (i.e., early versus late lesion onset) rather than continuous variable. Thus, little is known about the age at which children become less likely to exhibit atypical representation following a brain insult. This study examined the likelihood of typical versus atypical speech representation in children with intractable epilepsy (n = 75). Age of seizure onset was treated as a continuous variable to examine whether there was a naturally occurring cut-off point after which the rate of atypical speech representation decreased. A much higher proportion of children with seizure onset prior to the fifth year showed atypical speech representation as compared to children whose seizures began after 5 years of age.     

Simultaneous Discrimination Learning in Pigeons: Value of S - Affects the Relative Value of its Associated S+

In a simple simultaneous discrimination involving a positive stimulus (S+) and a negative stimulus (S-), it has been hypothesized that positive value can transfer from the S+ to the S- (thus increasing the relative value of the S-) and also that negative value can transfer from the S- to the S+ (thus diminishing the relative value of the S+; Fersen, Wynne, Delius, & Staddon, 1991). Evidence for positive value transfer has been reported in pigeons (e.g. Zentall & Sherburne, 1994). The purpose of the present experiments was to determine, in a simultaneous discrimination, whether the S- diminishes the value of the S+ or the Sis contrasted with the S+ (thus enhancing the value of the S+). In twoexperiments, we found evidence for contrast, rather than value transfer, attributable to simultaneous discrimination training. Thus, not only does the S+ appear to enhance the value of the S-, but the S appears to enhance rather than reduce the value of the S+.     

Natural kind and entitative beliefs in relation to prejudice toward mental disorders

Mental health campaigns often promote biogenetic beliefs to reduce stigma, but their effectiveness may vary across disorders. Our study (N = 127) examined two components of essentialist beliefs—entitative (i.e., characterizing groupness) and natural kinds (i.e., biogenetic)—about two stigmatized mental disorders (schizophrenia, alcoholism) as well as a somatic disorder (Parkinson's disease), and their relation to prejudice. The three disorders significantly differed in natural kind beliefs (Parkinson's highest, then schizophrenia, and alcoholism lowest) and prejudice (alcoholism highest, then schizophrenia, and Parkinson's lowest), but not entitative beliefs. Entitative beliefs, however, was a stronger predictor of prejudice against schizophrenia than natural kind beliefs even after controlling for social dominance orientation and prior contact. Implications for anti‐stigma efforts and strategies are discussed.