An Analysis of Motor Coordination Components for Various Localization Tasks

Localization abilities of subjects in three perceptual-motor tasks were considered before and after an exposure to a visual distortion. During this distortion the subject observed his hand ballistically point to an invisible but audible target while either receiving or not receiving knowledge of results (KR) concerning pointing accuracy. Also, subjects either received a 1-or a 4-sec rest period between each of 30 exposure ballistic pointing actions. The pre-and postexposure tasks involved the ability of a subject to accurately point to an occluded and stationary auditory target, to point to the straight-ahead position in space, and to indicate when a moving, auditory target was perceived as being in the straight-ahead position. For these tasks, the pre-vs. postexposure localization difference scores are referred to as the negative aftereffect, the proprioceptive shift, and the auditory shift, respectively. Wilkinson’s (1971) two-component additive model (negative aftereffect= proprioceptive shift plus auditory shift) held when KR was given regardless of amount of rest between exposure pointing responses. With a 4-sec rest and no KR, the relationship between coordination components was nonadditive (negative aftereffect greater than proprioceptive shift plus auditory shift).     

Urbanization and Changing Perceptions of Responsibilities Among African Fathers

This study examined the effect of urbanization on 102 South African fathers' perceptions of their paternal responsibilities. Fathers were categorized as rural, transitional, or urban on the basis of a standardized interval measure of urbanization. Perceptions of paternal responsibilities were rank-ordered into three basic anthropologically sequential categories: breadwinner, governor, and family. Results indicated that rural, transitional, and urban fathers all viewed breadwinner responsibilities as most important but that urbanization had a significant effect on fathers' perceptions of their responsibilities.     

The Anomalous Wellbeing of Disabled People: A Response

Disabled people frequently find themselves in situations where their quality of life and wellbeing is being measured or judged by others, whether in decisions about health care provision or assessments for social supports. Recent debates about wellbeing and how it might be assessed (through subjective and/or objective measures) have prompted a renewed focus on disabled people’s wellbeing because of its seemingly ‘anomalous’ nature; that is, whilst to external (objective) observers the wellbeing of disabled people appears poor, based on subjective assessments, people with disabilities report a good quality of life. In this paper, I examine an article by the philosopher Dan Moller in which he seeks to explain this ‘disability paradox’. Despite agreeing with his analysis that there is more to what people value than happiness, his explanation reflects some of the difficulties presented in philosophical accounts which seek to understand the lives of disabled people: this includes an analysis which fails to problematise definitions of wellbeing and who has the ‘voice’ to do the defining; which negates the multiple identities and subject positions that disabled people occupy; and which lacks recognition of the social contexts which mediate disabled people’s lives. I suggest that there is a need to incorporate disabled people’s voices into research which deepens our empirical knowledge about the relationship between impairment and wellbeing, including the social circumstances that shape disabled people’s agency.     

Revision from the Margins: Fromm's Contributions to Psychoanalysis

Fromm's important contributions to the modern development of psychoanalytic thought are often ignored and frequently misunderstood. An early proponent of revisions of psychoanalytic theory and therapy similar to recent trends in object relations, self-psychology and interpersonal psychoanalysis, Fromm was a visionary for a Freudian theory built upon orthodoxies of the past but going beyond them. It is argued here that Fromm's unique role in helping create a new version of psychoanalysis for the 21st century was as sociological as it was intellectual. Fromm's contributions were intimately linked to his institutional positioning close to the center but on the relative margins of the discipline. This paper will outline how sociological dynamics shaped Fromm's revision of psychoanalysis. We will conclude by discussing how Fromm was able to have a more dramatic influence than other Freudian revisionists who were less favourably positioned.     

The mathematical abilities of children with cochlear implants

Research has shown that cochlear implants give rise to improvements in speech recognition and production in children with profound hearing loss but very few studies have explored mathematical abilities in these children. The current study compared the mathematical abilities of 24 children with cochlear implants (mean age 10 years 1 month) to a control group of 22 hearing children (mean age 9 years 8 months). The math questions were categorized into questions that tapped into arithmetic or geometrical reasoning. It was predicted that the cochlear implant group would perform below the hearing group on the arithmetic questions but not the geometrical reasoning questions. Unexpectedly, the results showed that the cochlear implant group performed significantly below the hearing group on both types of math questions, but that this difference was mediated by language skill as assessed by vocabulary knowledge. The clinical implications of these results and possible future research results are considered.     

Do MacDonald and MacDonald Solve the Problem of Mental Causal Relevance?

Ever since Davidson first articulated and defended anomalous monism, nonreductive physicalists have struggled with the problem of mental causation. Considerations about the causal closure of the physical domain and related principles about exclusion make it very difficult to maintain the distinctness of mental and physical properties while securing a causal role for the former. Recently, philosophers have turned their attention to the underlying metaphysics and ontology of the mental causation debate to gain traction on this issue. Cynthia MacDonald and Graham MacDonald have followed suit and argue that the solution to the nonreductivist’s troubles lies in a particular metaphysical view of events. They claim that an appropriately formulated property exemplification account of events resolves the problem and secures the causal relevance of mental properties. I argue that while this approach might get us the causal efficacy of mental events, it does not provide the sought-after causal relevance of mental properties. I show that the reason MacDonald and MacDonald stumble on the problem of causal relevance is—ironically—due to features of their view of events.     

You can't miss what you've never had: Can you?: The challenges and struggles of single parenthood from a psychoanalytic perspective

The issue of the growth of single-parent families has been in the forefront of political, social and moral debate in recent years. Children from single-parent families tend to be over-represented in clinic populations. Yet this state of My being may be no more potentially pathological than the nuclear family, which can become conceptually idealized The aim of this paper is to look behind the statistics and examine the impact on children of life in a single-parent family, to explore how this may be managed, and to look for potentiating factors which can enable good-enough development to unfold. Case material is used to illustrate the theme.     

The effects of list composition and perceptual fluency on judgments of learning (JOLs)

The perceptual fluency hypothesis proposes that items that are easier to perceive at study will be given higher memorability ratings, as compared with less fluent items. However, prior research has examined this metamemorial cue primarily using mixed-list designs. Furthermore, certain memory effects are moderated by the design (mixed list vs. pure list) used to present stimuli. The present study utilized mixed as well as pure lists to assess whether judgments of learning based on perceptual fluency are relative or absolute and whether people are sensitive to differences in recall produced by variation in list composition. Using font size and generation manipulations, Experiments 1 and 2 showed that the effect of perceptual fluency on metamemory is relative in nature, occurring only in mixed lists. Experiments 2 and 3 revealed that metamemory is insensitive to the effect of list composition on recall. These findings are consistent with the assumptions of Koriat’s (Journal of Experimental Psychology: General 126: 349-370, 1997) cue-utilization framework, that JOLs reflect a comparative process and are insensitive to cues pertaining to conditions of learning.