Relations between covert orienting and filtering in the development of visual attention

This study examined a widely held assumption concerning the development of visual attention, namely, that different aspects of visual selectivity depend on common processing resources. Observers aged 5, 7, 9, and 24 years participated in a speeded classification task designed to examine the relations between covert shifts of attention and filtering. There were three important findings: (1) covert orienting and filtering share processing resources, (2) the ability to orient covertly to a target location and to filter competing information on the same trial became more efficient with age, and (3) 5 year olds were able to filter as efficiently as adults when target location was precued. The implications of these results for theories of attentional development are discussed.     

Al‐Dhimma: The non‐believers’ identity in Islam

The question as to the status of non‐Muslim minorities in Muslim states under an Islamic aegis has assumed importance once again in our times. The article argues that since dhimma status is secondary to the status of non‐believers, it is necessary that the theoretical basis of this latter relationship should be explored further. The article also points to the need of a fresh analytical understanding of the qur'anic term ‘the people of the Book’ and the possibilities of its wider application. The article reverts to the basic qur'anic distinction between din or faith and shir^ca and minhaj or code of conduct and way of life. The accommodative possibilities inherent in the distinction are briefly referred to.     

An experiment control computer system time shared by several laboratories

An experiment control computer system, operational for more than 2 years, is discussed. The system is multiprogammed, using a vendor supplied real-time operating system. Individual experiments employ multitasking—fast response functions are implemented in core resident tasks while interactive and other slow response functions are implemented in tasks that operate under time sharing. The areas of psychological research currently supported are concept formation studies, EEG evoked response studies, monitoring the autonomic nervous system, perception studies, and family interaction studies.     

The distinction between needs and wishes: implications for psychoanalytic theory and technique.

After a comprehensive survey of the literature is presented and some caveats entered, this paper delineates the concept of a psychological "need," noting that it bears a complex relation to the concept of a "wish." Need is universal, wish experience-bound. A need, unlike a wish, is not subject to repression. In addition, although a wish can be replaced by another wish, a need cannot be replaced by another need. Whereas the frustration of a wish causes dynamic shifts, the frustration of a need leads to structural disintegration. Needs and wishes can be in harmony or in opposition. The paper also identifies six basic psychological needs, which would seem to be ubiquitous, though the degree to which they are overt and the ways in which they are met vary across cultures. Their gratification seems necessary for healthy psychic development to occur, for relationships to survive, and for psychoanalytic work to take hold and to continue optimally. These needs are (1) the need for one's physical needs to be deemed legitimate; (2) the need for identity, recognition, and affirmation; (3) the need for interpersonal and intrapsychic boundaries; (4) the need for understanding the causes of events; (5) the need for optimal emotional availability of a love object; and (6) the need for a resilient responsiveness by one's love objects under special circumstances. Ordinarily these needs are met during the course of treatment with no deliberate effort by the analyst. In the treatment of some patients, however, they require more direct attention. A number of clinical vignettes are presented to elucidate these ideas.     

Patients as Teaching Tools: Merely Informed or True Consent

Using patients as teaching tools raise many ethical issues like informed consent, privacy, confidentiality and beneficence. The current study highlights issues on respecting patient’s choice and acquiring informed consent with its spirit rather than as mere formality. The study was conducted in out-patient department of The Kidney Center Postgraduate Training Institute Karachi Pakistan in May 2008 to July 2008. All patients who had come for the first time to see the author were included in the study. The said study explored the willingness of patients to allow medical students to be present during history taking and physical examination by the consultant. There were 18 male and 03 female patients. Age ranging from 22 to 73 years with mean age of 53.5 ± 13.7 years. There were total of 21 patient–students encounters out of which two encounters were with male students only and two with female students only. So in 17 Patient–students encounters, students of both genders were present. All patients permitted history taking in the presence of medical students except one who had a history of extramarital sexual contact and signs and symptoms suggestive of sexually transmitted disease. Of the male patients 50% (9/18) did not allow intimate examination before medical students. Out of these nine patients who refused, four consented earlier but when enquired again about their true willingness, they expressed their preference not to have medical students in the room while undergoing digital rectal and external genital examinations. Physicians need to develop sensitivity to acquire informed consent in its true essence rather than just as a formality by exploring actual willingness of the patient. One should refrain from being judgmental on the basis of gender, looks, religion or norms.     

Immigration, lack of control and psychological distress: findings from the Oslo Health Study

The aims of this study are to compare the level of psychological distress between Norwegian born and immigrants from countries with different income levels and culture, and to investigate the explanatory effect of socioeconomic and psychosocial factors, with special emphasis on lack of control (powerlessness and self-efficacy). A cross-sectional survey with self-administered questionnaire was conducted in 2000-2001 in a sample of 15,723 adults living in Oslo. Psychological distress was measured by a ten-item shortened version of Hopkins Symptom Checklist-25 items, whereas psychosocial variables were measured by various instruments. The results show that the level of psychological distress is significantly higher in immigrants from low- and middle-income countries than in the Norwegian born and the immigrants from high-income countries. They also report more powerlessness, more negative life events, less social support, less income and less paid work. It is concluded that negative life events, mainly related to social network, somatic health and economic situations, as well as lack of social support, are important mediators between immigration from low- and middle-income countries to Norway and psychological distress. Powerlessness also plays a role, but this is mainly because of a concept overlap between psychological distress and powerlessness.     

Context extinction and associative learning in Lymnaea

Aerial respiratory behavior in the pond snail Lymnaea was operantly conditioned so that snails learned not to perform aerial respiration in a hypoxic environment. Snails were trained in either the standard context (no food odorant) or a carrot (food-odorant) context. An operant training procedure of two 45-min training sessions with a 1-h interval between the sessions followed by a third 45-min training session 18 h later was sufficient to produce associative learning and long-term memory (LTM) that persisted for at least 5 days. If, however, following the third operant training session snails received three 45-min extinction training sessions, with each extinction session separated by at least a 1-h interval, LTM was not observed when tested the following day. That is, the memory was extinguished. Extinction, however, did not occur if the context of the extinction training was different from the context of the associative training. That is, in the snails trained in the standard context, extinction did not occur if the extinction training sessions were performed in the food-odorant context and vice versa.