Hand preference for writing and associations with selected demographic and behavioral variables in 255,100 subjects: the BBC internet study

In an Internet study unrelated to handedness, 134,317 female and 120,783 male participants answered a graded question as to which hand they preferred for writing. This allowed determination of hand preference patterns across 7 ethnic groups. Sex differences in left-handedness were found in 4 ethnic groups, favoring males, while no significant sex differences were found in three of the groups. Prevalence of left-handedness in the largest of the ethnic groups (self-labelled as "White") was comparable to contemporary hand preference data for this group [Gilbert, A. N., & Wysocki, C. J. (1992). Hand preference and age in the United states. Neuropsychologia, 30, 601-608] but the prevalence of left-handedness in individuals >70 years of age was considerably higher in the present study. Individuals who indicated "either" hand for writing preference had significantly lower spatial performance (mental rotation task) and significantly higher prevalence of hyperactivity, dyslexia, asthma than individuals who had clear left or right hand preferences, in support of Crow et al. [Crow, T., Crow, L., Done, D., & Leask, S. (1998). Relative hand skill predicts academic ability: global deficits at the point of hemispheric indecision. Neuropsychologia, 36, 1275-1282]. Similarly, an association of writing hand preference and non-heterosexual orientation was clearest for individuals with "either" writing hand responses. We conclude that contradictions in the literature as to whether or not these variables are linked to handedness stem largely from different definitions of hand preference. Due to a lack of statistical power in most studies in the literature, the "either" hand writing preference group that yielded the most salient results in this study is not normally available for analysis.     

Sequential modulations of interference evoked by processing task-irrelevant stimulus features

Compatibility level repetition benefits in interference paradigms have been taken to reflect enhanced processing selectivity in response to cognitive conflict elicited by a task-irrelevant stimulus feature. The authors demonstrate such sequential effects in the Simon task which (a) occur independent of previous behavioral conflict effects and (b) cannot be accounted for by selectivity enhancement. Furthermore, when presenting more than one type of irrelevant stimulus features, compatibility level repetition effects occurred in a type-specific manner. The results do not support the notion that cognitive conflict results in enhanced processing selectivity and favor a feature integration account.     

Prawn-in-a-tube procedure: habituation or associative learning in cuttlefish?

The prawn-in-a-tube procedure (J. B. Messenger, 1973a) has been used almost exclusively to study associative learning in cuttlefish. In two experiments, the authors sought to determine whether the decline in attack responses observed in this procedure was best accounted for by habituation or associative learning. Results of Experiment 1 revealed an asymmetrical stimulus-specificity effect that could be interpreted as either an instance of habituation or of associative learning. Results of Experiment 2 demonstrated that the response decline could not be reversed following the presentation of a dishabituatory stimulus. The combined results of these experiments support the conclusion that the response decline is best viewed as a resulting of associative processes. The authors considered whether the response decline represents extinction or passive avoidance.     

Typology of dogs by the conditional reflex method

Some of the problems and concerns which initiated and motivated the development of typological research in Pavlov’s laboratories are reviewed. Explanations are developed as to the basic theme underlying the typing methods. Two outstanding methods of typing dogs, the “large standard” and the “small standard,” are presented in considerable detail. The basic four types that emerge from the testing procedures and some of their shortcomings are discussed. The importance to Western investigators of acquiring a first hand knowledge of this methodology is stressed.     

The Open-Ended Legacy of Ralph Wendell Burhoe

Through cultivating my thinking, along with that of many others, Ralph Burhoe taught me to understand myself in relational terms. He helped me to appreciate religious traditions on scientific grounds and to see how religion adapts to changing conditions even as it continues to provide meaning and guidance to the wider culture. He restored my belief in an ever-present sovereign God when God is understood in terms of function and system.     

Physiologic and motor conditioning and generalization in children with minimal brain dysfunction

Twenty-six children diagnosed as having minimal brain dysfunctions (MBD) were compared with 26 controls in a conditinoing and generalization procedure. Skin resistance, heart rate, and muscle action potentials were monitored throughout. Success involved learning which of two tones signalled the accessibility of a penny. Whereas 92 per cent of controls reached the criterion of five successive correct responses, only 62 per cent of MBD’s did. Further, a third of the MBD’s were so maladaptive as to force procedural variations, while only a few minor irregularities occurred with the controls. Quality of performance was related to age, intelligence, and ability to discriminate and remember tones. Controls were more physiologically reactive than MBD’s, especially in skin resistance. Physiologic differentiation of the two tones was significant in both groups of children and appeared concurrently with motor differentiation. The only evidence of physiologic generalization was in the SR data of controls. The possibility that defective arousal structures, or defective coupling of arousal structures and other perceptual and motor structures, could account for the decreased physiologic reactivity, short attention spans, and poor concentration ofsome MBD’s is discussed. This research, in conformity with other laboratory studies of the brain, indicates that motivational as well as cognitive defects may be organically based.     

The symptomatic psychosis of Friedrich Nietzsche, made evident by his last attempt at an autobiography

Nietzsche's autobiography gestates neither conflicts, nor life problems, nor matter suppressed from his subconscious, nor are the speech distortions of the schizophrenic patient to be found. In all, analysis allows with certainty the conclusion that is was written by a sick person suffering from a psycho-organic disorder of the kind Bonhoeffer referred to by the general term "symptomatic psychosis".     

Irma--Emma--Martha--Anna. Some additional comments on presentations by K. R. Eissler and H. Thom?

The author re-examines the significance of the Emma-Eckstein-episode and the Irma-dream with their implications for the theory of psychoanalysis. He follows Eissler and contradicts Schur in his argument that the identity of Irma with Emma cannot be proven and is, in any case, improbable. Neither the proof nor the refutation of this identity are of vital significance for psychoanalytic theory, but only for the suppression of dynamic psychiatry in favour of biological psychiatry.     

DAVID BOHM, POSTMODERNISM, AND THE DIVINE

Abstract. This is an exposition and critique of physicist David Bohm's theory of wholeness and the implicate order in light of the wider emerging postmodern consciousness. Postmodernity is defined primarily as advocacy for wholistic thinking over against the alleged fragmentation characteristic of the modern mind since Rene Descartes and Isaac Newton. When Bohm attempts to unite all things in the explicate order with his implicate "multidimensional ground," theological questions are raised and, in this article, addressed. The thesis is advanced that there is no whole which presently exists, meaning that the future is presently open, and that the unity of the cosmos awaits the eschatological act of God.