Canadian feminist psychology: Where are we now?

Reviews the current status of the psychology of women field within Canadian psychology as revealed in the feminization of psychology in Canada, psychology of women courses in academic psychology, research publications in Canadian journals, papers presented at Canadian Psychological Association (CPA) conventions, and doctoral dissertation projects. The paper concludes with an insider's view of some of the general characteristics of the Canadian variant of feminist psychology. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Are we there yet? Stasis and progress in forensic psychology.

Progress in forensic psychology has been rapid in some areas and nonexistent in others. By contrasting technological and conceptual scientific progress in three areas--the legal disposition of mentally ill offenders, risk appraisal, and theories of individual differences in antisocial behaviour--I attempt to identify some determinants of progress. Conceptual progress appears to depend even more heavily than technological progress on developments in the more advanced sciences, supporting the idea that consilience plays a vital heuristic role in psychology. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Disability: how successful are we in determining disability?

In this report, we describe the cloning and characterization of Boo, a novel anti-apoptotic member of the Bcl-2 family. The expression of Boo was highly restricted to the ovary and epididymis implicating it in the control of ovarian atresia and sperm maturation. Boo contains the conserved BH1 and BH2 domains, but lacks the BH3 motif. Like Bcl-2, Boo possesses a hydrophobic C-terminus and localizes to intracellular membranes. Boo also has an N-terminal region with strong homology to the BH4 domain found to be important for the function of some anti-apoptotic Bcl-2 homologues. Chromosomal localization analysis assigned Boo to murine chromosome 9 at band d9. Boo inhibits apoptosis, homodimerizes or heterodimerizes with some death-promoting and -suppressing Bcl-2 family members. More importantly, Boo interacts with Apaf-1 and forms a multimeric protein complex with Apaf-1 and caspase-9. Bak and Bik, two pro-apoptotic homologues disrupt the association of Boo and Apaf-1. Furthermore, Boo binds to three distinct regions of Apaf-1. These results demonstrate the evolutionarily conserved nature of the mechanisms of apoptosis. Like Ced-9, the mammalian homologues Boo and Bcl-xL interact with the human counterpart of Ced-4, Apaf-1, and thereby regulate apoptosis.     

How are model protein structures distributed in sequence space?

The figure-to-structure maps for all uniquely folding sequences of short hydrophobic polar (HP) model proteins on a square lattice is analyzed to investigate aspects considered relevant to evolution. By ranking structures by their frequencies, few very frequent and many rare structures are found. The distribution can be empirically described by a generalized Zipf's law. All structures are relatively compact, yet the most compact ones are rare. Most sequences falling to the same structure belong to "neutral nets." These graphs in sequence space are connected by point mutations and centered around prototype sequences, which tolerate the largest number (up to 55%) of neutral mutations. Profiles have been derived from these homologous sequences. Frequent structures conserve hydrophobic cores only while rare ones are sensitive to surface mutations as well. Shape space covering, i.e., the ability to transform any structure into most others with few point mutations, is very unlikely. It is concluded that many characteristic features of the sequence-to-structure map of real proteins, such as the dominance of few folds, can be explained by the simple HP model. In analogy to protein families, nets are dense and well separated in sequence space. Potential implications in better understanding the evolution of proteins and applications to improving database searches are discussed.     

Biases against theism in psychology?

Slife and Reber issue a welcome challenge to implicit biases against the serious investigation of religious experience and phenomena in psychology. I agree with the main thrust of their article but express a few friendly reservations about their analysis and some concerns about how a productive dialogue between psychology and religion might best be pursued from this point forward. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Can after-the-fact designs test functional hypotheses, and are they needed in psychology?

While various methodological psychologists have traditionally claimed that ex-post facto or after-the-fact investigational designs cannot test functional hypotheses of "causal" type, it is maintained in the present paper that they can under certain circumstances. To the usual objection that the "treated" groups in after-the-fact studies have not been equated by randomization or matching to the "control" groups, it is argued that where suitable data are available, judicious matching can be done and conceivable regression effects avoided or discounted. While admittedly probable functional determinants ("causes") are preferably investigated by classical experimental designs, there are important fields, such as the study of the effects of physical disorders and investigations of the actual determinants in real-life situations, in which an appropriate series of after-the-fact analyses is essential for the testing of the alleged causal connections. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A sustainable future for humanity? How can psychology help?

The sustainability of human life on Earth in the future is in danger. Human actions are producing many harmful and possibly irreversible changes to the environmental conditions that support life on Earth. This article summarizes major threats to Earth's environment, including global warming, ozone layer destruction, exhaustion of fisheries and agricultural land, and widespread exposure to toxic chemicals. Unless they are overcome, these changes will make human life increasingly miserable and eventually may make Earth nearly uninhabitable for future generations. These threats are caused by patterns of human behavior, particularly overpopulation and overconsumption. Urgent changes to human lifestyles and cultural practices are required for the world to escape ecological disaster, and psychologists should lead the way in helping people adopt sustainable patterns of living. Specific steps toward that goal are proposed in this and the following four articles. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

How pervasive are relative age effects in secondary school education?

Relative age effects (RAEs; R. H. Barnsley, A. H. Thompson, & P. E. Barnsley, 1985) convey school attainment (dis)advantages depending on whether one is relatively older or younger within annually age-grouped cohorts. In the present study, the authors examined the pervasiveness of RAEs by examining (a) attainment in 4 secondary school subjects, (b) attainment consistency across subjects, (c) pupils enrolled in gifted and talented programs, (d) pupils referred for learning support or identified as having special educational needs, and (e) whether RAEs were related to pupil attendance. For 2004–2005, attainment, program participation, and attendance data for 657 pupils (aged 11–14) at a secondary school in North England were analyzed. Relatively older pupils (i.e., September–November born) attained significantly higher in subjects (except for English), were more likely to attain consistently high scores across subject areas, and be enrolled in gifted and talented programs. In contrast, relatively younger pupils (i.e., January–August born) were overrepresented in learning support referrals and identified as having special educational needs, and were more likely to be among the lowest 20% of attainment and attendees, attending on average school 6 days less. RAEs are pervasive and systematic across the curriculum, implicating maturational and psychological mechanisms. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

If we are so rich, why aren't we happy?

Ever since systematic thought has been recorded, the question of what makes men and women happy has been of central concern. Answers to this question have ranged from the materialist extreme of searching for happiness in external conditions to the spiritual extreme claiming that happiness is the result of a mental attitude. Psychologists have recently rediscovered this topic. Research supports both the materialist and the mentalist positions, although the latter produces the stronger findings. The article focuses in particular on one dimension of happiness: the flow experience, or the state of total involvement in an activity that requires complete concentration. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Is positive psychology only White psychology?

Comments on the special issue of the American Psychologist (2000[Jan], Vol 55[1]) on positive psychology. The author points out that in this special issue the perspectives of psychologists of color were not represented. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Is rehabilitation psychology in need of rehabilitation?

Discusses the Golden Age of rehabilitation psychology, when rehabilitation of persons with traumatic brain injury was the fastest growing areas in all health care, and comments on the current state and possible future directions of the field. The author's care plan for the future includes a focus on chronic conditions in addition to the field's current primary focus on end results (disability). The new focus would involve branching out beyond the field's traditional work in inpatient and outpatient rehabilitation facilities. The author points out rehabilitation psychology's unique focus on a team approach to treatment, and notes that this model can be transported to treating other chronic conditions, typically seen in more acute or primary settings. In an effort to introduce their model into hospitals around the country, rehabilitation psychologists need to expand their clinical practices, modify their training model, and broaden the scope of their research efforts. As corporations are concerned about disability and chronic illness and are largely unaware of what rehabilitation psychology could offer them, a logical step in their care plan is to work more closely with corporations and employee benefit services. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Bias in binge eating disorder: How representative are recruited clinic samples?

The aim of this study was to investigate sampling bias as it affects recruited clinic samples of binge eating disorder (BED). Demographic and clinical characteristics of a recruited clinic sample were compared with a community sample. The 2 groups met the same operational definition of BED and were assessed using the same primarily interview-based methods. Ethnicity, severity of binge eating, and social maladjustment were found to increase treatment seeking among participants with BED rather than levels of psychiatric distress or comorbidity. These findings suggest that previous studies using recruited clinic samples have not biased estimates of psychiatric comorbidity in BED. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

How similar are motor imagery and movement?

It has been suggested that motor imagery (MI) has the basic components of real motion. This possibility was tested here in 17 healthy volunteers studied while performing or imaging a fast sequence of finger movements of progressive complexity, a fast and precise extension of the arm to touch a small circle with the tip of a pencil, a periodic repetitive flexion-extension of the index finger at a specified rate, and a velocity-regulated continuous rotary movement of the right hand. Motor sequences of 4 to 5 fingers showed a real-virtual congruency similar to that previously reported with other equivalent tests, but it decreased in the simplest sequences performed with 1 to 2 fingers. A more marked decrease of real-virtual congruency was found in the experimental paradigm aimed at producing movements with a pre-specified velocity, which was low for rhythmic movements of the index finger and practically absent in the continuous rotary movements of the hand. Present data show that the ability of MI to produce realistic simulations of motion is not the same for all motor tasks. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Adolescent abstinence and condom use: are we sure we are really teaching what is safe?

Previous anatomical studies demonstrated vagal innervation to the ovary and distal colon and suggested the vagus nerve has uterine inputs. Recent behavioral and physiological evidence indicated that the vagus nerves conduct sensory information from the uterus to the brainstem. The present study was undertaken to identify vagal sensory connections to the uterus. Retrograde tracers, Fluorogold and pseudorabies virus were injected into the uterus and cervix. DiI, an anterograde tracer, was injected into the nodose ganglia. Neurectomies involving the pelvic, hypogastric, ovarian and abdominal vagus nerves were performed, and then uterine whole-mounts examined for sensory nerves containing calcitonin gene-related peptide. Nodose ganglia and caudal brainstem sections were examined for the presence of estrogen receptor-containing neurons in "vagal locales." Labeling of uterine-related neurons in the nodose ganglia (Fluorogold and pseudorabies virus) and in the brainstem nuclei (pseudorabies virus) was obtained. DiI-labeled nerve fibers occurred near uterine horn and uterine cervical blood vessels, in the myometrium, and in paracervical ganglia. Rats with vagal, pelvic, hypogastric and ovarian neurectomies exhibited a marked decrease in calcitonin gene-related peptide-immunoreactive nerves in the uterus relative to rats with pelvic, hypogastric, and ovarian neurectomies with intact vagus nerves. Neurons in the nodose ganglia and nucleus tractus solitarius were immunoreactive for estrogen receptors. These results demonstrated: (1) the vagus nerves serve as connections between the uterus and CNS, (2) the nodose ganglia contain uterine-related vagal afferent neuron cell bodies, and (3) neurons in vagal locales contain estrogen receptors.     

Rediscovering differential psychology?

Comments on the original article, "Many forms of culture," by A. B. Cohen (see record 2009-04471-003). Cohen offered an eye-opening review of how culture means much more than ethnicity within a nation or differences between nations. After developing a much-expanded definition of culture, he concluded, “I have lamented the fact that psychology has focused on some important cultural differences, but not others” (Cohen, 2009, p. 202), and he went on to explain how deeply this expanded definition can impact our psychological research. Without naming it, Cohen (2009) apparently rediscovered the now-forgotten concept of “differential psychology,” which actually surpasses his own expanded definition of culture. Anastasi (1937) defined differential psychology simply as “the scientific study of differences between groups” (p. 59). One look at her book’s table of contents shows that this definition goes far beyond race and ethnicity, to include all sorts of group differences based on gender, social class, education, religion, age, and family. These all qualify as cultural differences under Cohen’s (2009) expanded definition. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

How should we revise diagnostic criteria for substance use disorders in the DSM-V?

This article reviews literature on the validity and performance characteristics of the Diagnostic and Statistical Manual of Mental Disorders (4th ed.; DSM-IV; American Psychiatric Association, 1994) diagnostic criteria for substance use disorders (SUDs) and recommends changes in these criteria that should be considered for the next edition of the DSM (DSM-V). Substantial data indicate that DSM-IV substance abuse and substance dependence are not distinct categories and that SUD criteria are best modeled as reflecting a unidimensional continuum of substance-problem severity. The conceptually and empirically problematic substance abuse diagnosis should be abandoned in the DSM-V, with substance dependence defined by a single set of criteria. Data also indicate that various individual SUD criteria should be revised, dropped, or considered for inclusion in the DSM-V. The DSM-V should provide a framework that allows the integration of categorical and dimensional approaches to diagnosis. Important areas for further research are noted. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

How interchangeable are different estimators of effect size?

The computation of effect sizes is a key feature of meta-analysis. In treatment outcome meta-analyses, the standardized mean difference statistic on posttest scores (d) is usually the effect size statistic used. However, when primary studies do not report the statistics needed to compute d, many methods for estimating d from other data have been developed. Little is known about the accuracy of these estimates, yet meta-analysts frequently use them on the assumption that they are estimating the same population parameter as d. This study investigates that assumption empirically. On a sample of 140 psychosocial treatment or prevention studies from a variety of areas, the present study shows that these estimates yield results that are often not equivalent to d in either mean or variance. The frequent mixing of d and other estimates of d in past meta-analyses, therefore, may have led to biased effect size estimates and inaccurate significance tests. (PsycINFO Database Record (c) 2010 APA, all rights reserved)