A Research Note on the Influence of Relationship Length and Sex on Preferences for Altruistic and Cooperative Mates.

Previous literature suggests that altruism may have evolved as a sexually selectable trait. Recent research suggests that women seek altruistic traits for long-term, not short-term relationships, as altruism can serve as an honest signal of one's character. We tested this hypothesis by asking 102 participants to complete a modified version of Buss's Mate Preferences Questionnaire.

Ideological vs. Instrumental Barriers to Accessing Formal Mental Health care in the Developing World: Focus on South-eastern Nigeria.

The striking gaps in formal mental health care in the developing world are largely traceable to Instrumental and Ideological Barriers. Focusing on south-eastern Nigeria, the study aimed to establish the relative weight, significance and determinants of these barriers for prioritised policy interventions. Multistage sampling method was used to select participants (n = 706) to whom questionnaires were administered.

Pathways to mental healthcare in south-eastern Nigeria.

In sub-Saharan Africa, traditional and faith healers provide competing services alongside biomedical professionals. This may be associated with delays in reaching specialised mental health services, and hence with longer duration of untreated illness. As first line care constitutes a crucial stage in accessing of psychiatric care, investigating pathways to mental healthcare can highlight help-seeking choices.

Different combinations of perceptual, emotional, and cognitive factors predict three different types of delusional ideation during adolescence.

Although adolescence is a particularly sensitive period for the development of schizotypy (Walker and Bollini [Schizophr Res 54:17-23, 2002]), there has been relatively limited research on the psychological factors that specifically predict delusional beliefs during adolescence. We studied 392 school students aged 11 to 16 years with a battery of behavioral and psychometric measures. Anxiety and negative-other schemas mediated the relationship between hallucinatory experiences and paranoid beliefs; anxiety mediated the relationship between hallucinatory experiences and grandiose beliefs; anxiety and self-negative schemas mediated the relationship between hallucinatory experiences and "other delusions" (Schneiderian/reference/misidentification).

Subclinical delusional ideation and appreciation of sample size and heterogeneity in statistical judgment.

Previous studies demonstrate that people high in delusional ideation exhibit a data-gathering bias on inductive reasoning tasks. The current study set out to investigate the factors that may underpin such a bias by examining healthy individuals, classified as either high or low scorers on the Peters et al. Delusions Inventory (PDI).

Subclinical delusional ideation and a self-reference bias in everyday reasoning.

Previous studies (e.g. Moller & Husby, 2000; Blackwood et al.

Can subthreshold summation be observed with the Ehrenstein illusion?

Subthreshold summation between physical target lines and illusory contours induced by edges such as those produced in the Kanizsa illusion has been reported in previous studies. Here, we investigated the ability of line-induced illusory contours, using Ehrenstein figures, to produce similar subthreshold summation. In the first experiment, three stimulus conditions were presented.