Does retinal size have a unique correlate in perceived size?

Subjects estimated the size and distance of a single electroluminescent disc in the absence of distance cues and without the use of visual comparators. For different groups of Ss the disc subtended a visual angle of 1, 2, 4, or 8 deg. The size estimates varied directly with visual angle and the distance estimates varied inversely with visual angle. These results were considered in relation to the question of whether or not retinal size hasa direct correlate in perceived size.     

Incidental Finding of Tumor While Investigating Subarachnoid Hemorrhage: Ethical Considerations and Practical Strategies

High-resolution neuroimaging modalities are used often in studies involving healthy volunteers. Subsequently, a significant increase in the incidental discovery of asymptomatic intracranial abnormalities raised the important ethical issues of when follow-up and treatment may be necessary. We examined the literature to establish a practical set of criteria for approaching incidental findings. Our objective is to develop an algorithm for when follow-up may be important and to provide recommendations that would increase the likelihood of follow-up. A systematic literature search was performed using the PubMed and MEDLINE databases to identify articles describing brain tumors and intracranial aneurysms. The treatment algorithm we present suggests that incidental intracranial masses suspicious for glioma should be biopsied or resected, while other masses are to be followed with serial imaging based on the expected growth pattern. Lack of follow-up can result in adverse outcomes that can be mitigated by using technology to facilitate communication and improve follow-up care. The importance of training physicians to be good communicators is also stressed. New technology including automated telephone systems, texting and email will improve access to patients and hopefully encourage compliance and follow-up.     

Association Between Religiosity and Happiness Among a Group of Muslim Undergraduate Students

The association between religiosity and happiness has been the focus of much recent research. The majority of them report a positive correlation between a religious attitude and behavior and the level of happiness. However, different findings have been reported. The aim of the current study was to test link between religiosity and happiness among a group of undergraduate Muslim students. Two hundred and seventy-one health-related students agreed to participate and completed Oxford Happiness Index and a religious belief questionnaire. It was found that higher score on religious belief was significantly linked to the level of happiness (r = .256, P = .01). The result confirms that individuals with a more religious attitude experience more happiness. The result of this study should be considered in programs designed to improve overall well-being of university students.     

Management Strategies of Sexual Dysfunctions

The purpose of this essay is to discuss on the possible impact on a couple's sexual relationships when the male partner's erectile problems contribute to a sexual dysfunction on the part of the female. The complex reciprocal nature of sexual interactions emphasizes the importance of the relationship for sexual function and dysfunction. The treatment of sexual dysfunction then takes into account the contribution of factors from the couple and the system. An integrated behavioural-systems approach is applied to address both sexual and non-sexual aspects of the interaction in the marital unit. This approach outlines a range of methods that may be used during the treatment of sexual dysfunctions in order to bring about relevant changes in sexual functioning and general relationships.     

Memory performance in abstinent 3,4-methylenedioxymethamphetamine (MDMA, "ecstasy") users

Research with animals and humans has suggested that acute and subacute use of 3,4-methylenedioxymethamphetamine (MDMA "ecstasy") may lead to memory impairment. However, research is limited by (1) low power due to small sample sizes, (2) the possible confound of polydrug use, and (3) the failure to consider intelligence as a covariate. The present study compared the memory performance on the Wechsler Memory Scale-III of 26 abstinent (2-wk. minimum) recreational MDMA users with 26 abstinent (2-wk. minimum) recreational polydrug users. Despite significantly greater polydrug use amongst these MDMA users, no significant group differences in memory were observed. Regression of total lifetime amount of MDMA use also did not predict memory performance after accounting for intelligence. In addition, the length of time since abstinence (at least 2 wk.) was not associated with an increase in memory performance. Greater total lifetime cocaine use, rather than total lifetime MDMA use, was significantly associated with greater decrements in General Memory and Delayed Verbal Memory performance.