The Role of Reproductive Strategies in Academic Attainment

Since there is a tradeoff between prolongedformal education and early reproduction, education canbe construed as a long-term reproductive tactic. Thisreproductive strategies approach was tested by looking at relationships between sociosexuality (SOI)and parental investment (parental income, number ofsiblings, parental divorce, number of step siblings,birth intervals, birth order, closeness to parents) and GPA of 139 White students at a privatecollege. Parental investment was reduced to threefactors (Family Composition, Family Security, andMarital Instability), the last of which was negativelycorrelated with GPA and positively correlated with SOI.SOI was a much stronger (negative) predictor of GPA inwomen, but not men, than ACT was. Results support thereproductive strategies approach and imply that prediction of academic difficulty (and genderdifferences therein) must confront reproductiveissues.     

Hand-hemispace spatial compatibility,precueing, and stimulus-onset asynchrony

Summary The role of attention and the resolution of coding conflicts in hand-hemispace spatial-compatibility effects was examined in a precueing experiment in which visual and vibrotactile precues, with various stimulus-onset asynchronies (SOAs), were presented in blocked and random order. It was expected that precues at the shorter SOAs would fail to facilitate the shifting of attention, as they occur too close to the imperative stimulus to be informative. The task would therefore approximate one of choice reaction time (RT), resulting in a hand-hemispace spatial-compatibility effect. Conversely, the longer SOAs would provide the subject with sufficient time in which to shift attention fully, and would therefore result in a task more like that of simple reaction time (SRT). It was expected that the hand-hemispace spatial-compatibility effect would then be absent. As was expected, this effect was present at the shorter SOAs, and absent at the longer SOAs. In Experiments 2 and 3, provision of a visual precue further facilitated attentional deployment, as did blocking the presentation of various SOAs in Experiment 3. Vibrotactile and visual precues did not differ in their ability to direct attention, implying that these modalities orient attention and precue location in essentially similar ways. These findings are discussed within the context of the mechanisms thought to underlie the time course of spatial compatibility and the dissipation of a fading trace of interfering spatial codes.     

Compatibility due to the coding of the relative position of the effectors

Response latencies emitted with the hands crossed are slower than those emitted with the hands uncrossed. Two explanations are available for the so-called crossed-hand effect. One attributes it to the non-natural posture of the arms in the crossed position, whereas the other is in terms of a conflict between the code describing the hand and the code describing its position. Experiment 1 disproved the postural hypothesis by showing that crossing the hands has no effect on response latencies in a simple reaction time task. Experiments 2 and 3 replicated the crossed-hand effect in a choice reaction time task and showed that it depends on the relative position of the two hands. In other words, responses are slower when the hand is located in the “wrong” position with respect to the other (e.g., the right hand is located to the left of the left hand), whereas the absolute position, that is the side of the body where the responding hand is located, does not seem to effect the speed of response.     

Cultural and Religious Variation in Attitudes to Young People Consenting to Health Interventions

There is a limited amount of empirical data available regarding the cultural and religious variation in perceptions about the age when young people should be regarded as competent to make decisions in health settings. A public survey of 400 adults from diverse religious and ethnic backgrounds was conducted in the UK and Spain. Attitudes were assessed using case vignettes. It was found that high religious practice was associated with recommending a higher age of consent for medical interventions. White British adults were more likely than Spanish adults to agree that younger adolescents should be allowed to consent to medical interventions. The study suggests that there is social, cultural and religious variation in adults’ attitudes regarding the age when youngsters should consent to health interventions.

     

Lexical processes and eye movements in neglect dyslexia

Neglect dyslexia is a disturbance in the allocation of spatial attention over a letter string following unilateral brain damage. Patients with this condition may fail to read letters on the contralesional side of an orthographic string. In some of these cases, reading is better with words than with non-words. This word superiority effect has received a variety of explanations that differ, among other things, with regard to the spatial distribution of attention across the letter string during reading. The primary goal of the present study was to explore the interaction between attention and lexical processes by recording eye movements in a patient (F.C.) with severe left neglect dyslexia who was required to read isolated word and non-word stimuli of various length. F.C.'s ocular exploration of orthographic stimuli was highly sensitive to the lexical status of the letter string. We found that: (1) the location to which F.C. directed his initial saccade (obtained approximately 230 ms post-stimulus onset) differed between word and non-word stimuli; (2) the patient spent a greater amount of time fixating the contralesional side of word than non-word strings. Moreover, we also found that F.C. failed to identify the left letters of a string despite having fixated them, thus showing a clear dissociation between eye movement responses and conscious access to orthographic stimuli. Our data suggest the existence of multiple interactions between lexical, attentional and eye movement systems that occur from very initial stages of visual word recognition.     

Do laterality measures relate to speed of response in central vision?

This study was aimed at determining whether an efficiency index (speed of response in central vision) related to a laterality index (difference in speed of response between right and left field presentations). In Experiment 1 female subjects were required to discriminate facial emotional expressions shown in either central vision or the periphery. In Experiment 2 male and female subjects had to classify as same or different pairs of letters printed in different typefaces. It was found that the efficiency index related (negatively) to the laterality index only in Experiment 1 so that slower responses indicate larger visual field differences. The results are discussed in terms of current models of hemispheric specialization.     

On Post-Heideggerean Difference: Derrida and Deleuze

This paper takes up the Heideggerean question of difference. I argue that while Heidegger raises this question, his response to the question remains ambiguous and that this ambiguity pivots around the question of time. The bulk of the paper then looks at how Derrida and Deleuze respectively attempt to advance beyond Heidegger's ambiguity regarding the questions of difference and time. Derrida is able to demonstrate the manner in which time—as delay—is constitutive of any attempt to think difference. I argue, however, that his innovative articulation of “différance” maintains an extrinsic rather than intrinsic relation to difference in-itself. To achieve an intrinsic relation, it is necessary to turn to the work of Deleuze, particularly to his discussion of “nonsense” and “singularity.”     

Self-Perceptions of Comparative Power and Worth in Three Generational Families

This study focused on the extent to which self-perceptions of power and worth differed across members of three-generational families as they compared themselves with other family members. It was hypothesized that self evaluations of worth would show more stability than self evaluations of power in such comparisons. There was support for this hypothesis. Differences regarding self evaluations of power according to gender and generation were also examined. The rank order, from lowest to highest, of perceived comparative power was: female adolescent grandchildren, grandmothers, mothers, male adolescent grandchildren, grandfathers, and fathers. Implications of findings for family therapists are described.