A semiotic model of mind

A theory of signs is presented to arrive at a model of mind that provides a smooth transition from inanimate matter to the thinking brain. Principles of information theory and semiotics are invoked to create a conceptual scheme that can contribute to an understanding of the "mind-body problem." The thesis is pursued that in living systems, as opposed to inorganic ones, there occurs the phenomenon of semiotic transmission of information. The result is a "dualistic-materialist" position; the dualism arises from the fact that at the beginning of life a set of processes comes into being different from those of the inorganic world. This model has implications for psychology and psychoanalysis. It allows for semiotic systems at different levels--e.g., the molecular, the neural network, the language system, and higher mental functions--to be integrated. Analytic concepts such as free association, clinical technique, feedback systems, personality structure, transference, and repetition compulsions can be understood in both biological and semiotic terms. This model interdigitates with linguistic studies already done in psychoanalysis, as well as with biological models extrinsic to the field.     

Does previewing one stimulus feature help conjunction search?

We examined the effects of previewing one aspect of a search display, in order to determine what subset of display information is most useful as a prelude to a search task. Observers were asked to indicate the presence or absence of a known target, in a conjunction search where the target was defined by the combination of colour and orientation (a yellow horizontal line presented among yellow vertical and pink horizontal distractors). In the colour preview condition of experiment 1, observers were first shown a 1 s preview of the locations and colours of the search items before the actual search set was presented. That is, search items first appeared as yellow and pink squares for 1 s, which each then turned into yellow and pink oriented lines (in the same locations) which comprised the display to be searched. In the orientation preview condition, observers were first shown a 1 s preview of the locations and orientations of the search items before the actual search display was presented. These two conditions were compared to a control condition consisting of standard conjunction search without any preview display. There was no effect of colour preview; there was a marginal effect of orientation preview, but in the opposite direction from what was expected reaction time increased for orientation preview searches. In experiment 2 these previews were compared to two spatial cueing conditions; in this experiment the colour preview did provide a small amount of help. Finally, in experiment 3 both previews were presented in succession, and increased facilitation was found, in particular when the colour preview preceded the orientation preview. These findings are discussed in relation to the literature, in particular the Guided Search model (Wolfe et al 1989 Journal of Experimental Psychology: Human Perception and Performance 15 419-433; Wolfe 1994 Psychonomic Bulletin & Review 1 202-238).     

Interactions between search mechanisms in conjunction search.

We report the results of a technique designed to measure interactions between different visual search processes. We interrupted pop-out search before it produced a detection response, by adding extra distractors to the display so that a target initially defined by a single feature difference (e.g., a yellow horizontal line among yellow vertical lines) could then only be found on the basis of the conjunction of two features (a yellow horizontal line among yellow vertical lines and pink horizontal lines; difficult search). This technique has been used to measure the duration of the perceptual components of pop-out search, independent of over-all response time, for targets presented among different sets of distractors. In addition, when pop-out failed because it was interrupted, past work has shown that it nevertheless provided useful information to the processes responsible for difficult search. That is, partial pop-out assisted difficult search, when extra distractors made search difficult because the target was between the two types of distractors in the relevant feature space (Olds, Cowan, & Jolicoeur, 2000a,b,c). The present results demonstrate that partial pop-out also assists difficult search when difficult search is a conjunction search, and therefore these interactions may occur at a stage where information from different feature dimensions is combined.     

Spiritually based parenting workshop: An outcome study

The present study observed the effects of one spiritually based parenting workshop: Parent and Family Healing. A repeated-measures design using before, after, and 3-week follow-up revealed that in the sample of 65 parents, Parent and Family Healing significantly lowered parents’ stress and negative affect, and increased their parental efficacy and parental satisfaction. These effects were all maintained at the 3-week follow-up. The workshop also significantly increased parents’ positive affect, but this change was not maintained 3 weeks following the workshop. Spirituality level did not change significantly over the course of the workshop or at follow-up, despite the workshop being spiritually based. Participants rated all the spiritual components of the workshop as between somewhat and very helpful. Finally, parents’ free-response answers revealed very positive opinions about the workshop, its effects, and the spiritual approach taken.     

Identification: psychoanalytic and biological perspectives

In recent attempts to bring psychoanalysis into greater contact with other sciences, a number of works have explicated neural science concepts and phenomena--affect, memory, consciousness--for the psychoanalyst. These efforts have helped analysts build a more scientific foundation for their theory and practice. A related task remains--namely, to take psychoanalytic concepts and see how they relate to other sciences. The concept of identification has a long history in psychoanalytic theory. It is seen in parent-child interactions, in teaching and mentoring relationships, and in psychoanalysis and psychotherapy. Neuropsychology and evolutionary biology have explored the phylogenetic precursors of identification, while genetics and infant observation provide insights into individual processes of identification. Finally, neuroscience, particularly recent studies of mirror neurons, offers information about the biological mechanisms of imitation and the relationship of imitation to identification. Findings from these sciences are presented in an effort to further the psychoanalytic understanding of identification, especially its biological underpinnings.     

In the Shadow Side of Hope: Charisma and Mutuality in the Pastoral Care of Men with Tendencies Toward Affective Disturbance

This paper explores dialectical relationships between affective mental disturbance and religious development in men. It then proposes a form of pastoral engagement—the mutual encounter—with men so afflicted. In care giving, the pastor may draw on his or her own charismatic endowment to solicit the recognition of the same within the care seeker, all the while respecting a man’s attenuating psychosocial need for communicative boundaries and privacy. Both pastor and care seeker may engage the care process as a mutual, continuing, and dialogic quest for authentic Christian relationship, charisma, and selfhood where each serves as “guide” and “messenger.”

Reliability of the 5-min psychomotor vigilance task in a primary school classroom setting

This study evaluated the reliability of the 5-min psychomotor vigilance task (PVT) in a single-sex Australian primary school. Seventy-five male students (mean age 5 11.82 years, SD = 1.12) completed two 5-min PVTs using a Palm personal digital assistant (PDA) in (1) an isolated setting and (2) a classroom setting. Of this group of students, a subsample of 37 students completed a test-retest reliability trial within the classroom setting. Using a mixed-model analysis, there was no significant difference in the mean response time (RT) or number of lapses (RTs ≥ 500 msec) between the isolated and the classroom setting. There was, however, an order effect for the number of lapses in the isolated setting, with the number of lapses being greater if the isolated test was conducted second. Test-retest intraclass correlation coefficients (ICCs) in the classroom setting indicated moderate to high reliability (mean RT = .84, lapses = .59). Bland-Altman analysis showed no systematic difference between the two settings. Findings suggest that the 5-min PDA PVT is a reliable measure of sustained attention in the classroom setting in this sample of primary-aged schoolchildren. The results provide further evidence for the versatility of this measuring device for larger interventions outside the laboratory.