The psychological unconscious. Found, lost, and regained.

In response to Greenwald's article on contemporary research on unconscious mental processes, the authors address three issues: (a) the independence of much recent research and theory from psychodynamic formulations; (b) the broad sweep of the psychological unconscious, including implicit perception, memory, thought, learning, and emotion; and (c) the possibility that the analytic power of unconscious processing may depend both on the manner in which mental contents are rendered unconscious and the manner in which they are to be processed.     

The delocalized mind. Judgements,vehicles, and persons

Drawing on various resources and requirements (as expressed by Dewey, Wittgenstein, Sellars, and Brandom), this paper proposes an externalist view of conceptual mental episodes that does not equate them, even partially, with vehicles of any sort, whether the vehicles be located in the environment or in the head. The social and pragmatic nature of the use of concepts and conceptual content makes it unnecessary and indeed impossible to locate the entities that realize conceptual mental episodes in non-personal or subpersonal contentful entities (vehicles). Persons, who engage in social practices of deontic scorekeeping (Brandom), and who are thus able to produce appropriate inferential behaviour, enact conceptual mental episodes and the basis of their supervenience.     

The multiple partnership. Scientist, university, agency, and government

In the United States a large and significant percentage of scientific effort is carried out in universities and financed by government and private agencies. The partnership between universities and research support agencies relies on individuals representing their scientific organizations, their universities, and their agencies. These individuals deal with the ideas, the proposals, and advocacies that push and shape the programs that ultimately become established. The organizational and political realities that drive and influence this partnership are described in a way that highlights the ensuing richness, diversity, and the sometimes wasted efforts that characterize American science. Present-day science advocacy in the United States is placed in perspective as it is compared with an ideal, advocacy-free system and to other systems that have existed historically.     

The Time Before Us (The Unpast in W. S. Merwin,W. Benjamin,and V. Woolf)

Freud and Winnicott have expressed the opinion that if their psychoanalytic ideas are correct, then poets and writers will have thought of them first. The author of the present article, who, in a previous work, has developed the concept of “actual time” on metapsychological grounds, concurs with their opinion by showing that variants of “actual time” can be found in the works of the American poet W. S. Merwin, the British writer Virginia Woolf, and the German philosopher Walter Benjamin. Their poetry, literary prose, and philosophy, respectively, are shown to resonate with the time dimension of the psychoanalytic process.     

The psychometric function: I. Fitting, sampling, and goodness of fit.

The psychometric function relates an observer's performance to an independent variable, usually some physical quantity of a stimulus in a psychophysical task. This paper, together with its companion paper (Wichmann & Hill, 2001), describes an integrated approach to (1) fitting psychometric functions, (2) assessing the goodness of fit, and (3) providing confidence intervals for the function's parameters and other estimates derived from them, for the purposes of hypothesis testing. The present paper deals with the first two topics, describing a constrained maximum-likelihood method of parameter estimation and developing several goodness-of-fit tests. Using Monte Carlo simulations, we deal with two specific difficulties that arise when fitting functions to psychophysical data. First, we note that human observers are prone to stimulus-independent errors (or lapses). We show that failure to account for this can lead to serious biases in estimates of the psychometric function's parameters and illustrate how the problem may be overcome. Second, we note that psychophysical data sets are usually rather small by the standards required by most of the commonly applied statistical tests. We demonstrate the potential errors of applying traditional chi2 methods to psychophysical data and advocate use of Monte Carlo resampling techniques that do not rely on asymptotic theory. We have made available the software to implement our methods.     

The science, fiction, and reality of embryo cloning.

Although many scientists view cloning as a useful procedure for scientific research into early embryo development -- one that cannot currently be used to produce multiple copies of humans -- the popular literature has led some individuals to view it as sinister. To address the concerns of the public, various conceptions of cloning are distinguished and their basis in fact analyzed. The possible uses, benefits, and detriments of both embryo splitting and nuclear transplantation are explained. Once the nature and purposes of cloning are understood, and the distinctive ethical dilemmas created by embryo splitting and nuclear transplantation are sorted out, these procedures should be clinically implemented to assist in vitro fertilization treatment for those who are infertile and to further other therapeutic and investigational efforts in medicine.