Revealing human inductive biases for category learning by simulating cultural transmission

We explored people’s inductive biases in category learning—that is, the factors that make learning category structures easy or hard—using iterated learning. This method uses the responses of one participant to train the next, simulating cultural transmission and converging on category structures that people find easy to learn. We applied this method to four different stimulus sets, varying in the identifiability of their underlying dimensions. The results of iterated learning provide an unusually clear picture of people’s inductive biases. The category structures that emerge often correspond to a linear boundary on a single dimension, when such a dimension can be identified. However, other kinds of category structures also appear, depending on the nature of the stimuli. The results from this single experiment are consistent with previous empirical findings that were gleaned from decades of research into human category learning.     

The View from Nowhen: The Mctaggart-Dummett Argument for the Unreality of Time

Years ago, Michael Dummett defended McTaggart’s argument for the unreality of time, arguing that it cannot be dismissed as guilty of an “indexical fallacy.” Recently, E. J. Lowe has disputed Dummett’s claims for the cogency of the argument. I offer an elaboration and defense of Dummett’s interpretation of the argument (though not of its soundness). I bring to bear some work on tense from the philosophy of language, and some recent work on the concept of the past as it occurs in memory, in an effort to support the claim that McTaggart is not guilty of any simple indexical fallacy. Along the way I criticize an account of what is at stake in disputes about the reality of tense due to A. W. Moore, and I argue for the superiority of the conception of tense-realism that is implicit in McTaggart’s work. The paper is intended to prepare the ground for a substantive defense of the reality of tense.     

Family Background,Social and Academic Capital,and Adolescents' Aspirations: A Mediational Analysis

In this study a mediational model was constructed to examine relationships between refined measures of childhood and adolescent social capital and the aspirations of adolescents with varying academic capital and from differing social status and ethnic backgrounds. Longitudinal data were collected from 460 16-year-old Australians and their parents from Anglo-Australian, Greek, and Southern Italian groups. Using partial least squares path modeling the findings suggest: (a) family background, childhood social and academic capital, and adolescents' social capital combine to have medium to large associations with adolescents' aspirations, and that the associations are larger for educational aspirations than for occupational aspirations and stronger for males than for females; (b) the mediational model is more successful in explaining family background differences in educational aspirations than variations in occupational aspirations; and (c) after taking into account social and academic capital, Greek males continue to have higher occupational aspirations than do Anglo-Australian and Southern Italian males, and sons of fathers with high social status continue to have higher occupational aspirations than do other male adolescents. The investigation indicates that within encompassing family backgrounds, differences in educational outcomes should be examined in relation to children's and parents' perceptions of social and cultural capital and to variations in children's academic capital.     

Protective buffering and psychological distress among couples coping with breast cancer: The moderating role of relationship satisfaction.

This study examined whether the association between protective buffering and psychological distress was moderated by relationship satisfaction. Protective buffering is defined as hiding worries, denying concerns, and yielding to one's partner in an effort to avoid disagreement and reduce one's partner's upset and burden. Two hundred thirty-five women diagnosed with early stage breast cancer and their partners completed measures of protective buffering, psychological distress, and relationship satisfaction at 3 time points over an 18-month period after cancer diagnosis. The authors hypothesized that protective buffering would result in more distress among patients and partners reporting higher relationship satisfaction than among patients and partners reporting lower levels of relationship satisfaction. Patients' protective buffering predicted more distress among patients rating their relationships as more satisfactory, whereas the patients' buffering did not predict distress among patients rating their relationships as less satisfactory. Partner relationship satisfaction also moderated the association between patients' buffering and partners' distress. These findings elucidate conditions under which protective buffering may have detrimental effects.     

Schizophrenia

ABSTRACT— Theoretical conceptualizations of schizophrenia have undergone significant change in the past century. Through the application of behavioral science methodology, psychologists have played a major role in the pivotal scientific advances that have led us to contemporary models. The field has moved from simplistic conceptualizations of mind–brain distinctions to models that encompass complex gene–environment interactions and neural pathways that mediate the relation between psychosocial events and brain dysfunction.     

Medicalizing Mental Health: A Phenomenological Alternative

With the increasingly close relationship between the pharmaceutical industry and the American Psychiatric Association (APA) there has been a growing tendency in the mental health professions to interpret everyday emotional suffering and behavior as a medical condition that can be treated with a particular drug. In this paper, I suggest that hermeneutic phenomenology is uniquely suited to challenge the core assumptions of medicalization by expanding psychiatry's narrow conception of the self as an enclosed, biological individual and recognizing the ways in which our experience of things--including mental illness--is shaped by the socio-historical situation in which we grow. Informed by hermeneutic phenomenology, psychiatry's first priority is to suspend the prejudices that come with being a medical doctor in order to hear what the patient is saying. To this end, psychiatry can begin to understand the patient not as a static, material body with a clearly defined brain dysfunction but as an unfolding, situated existence already involved in an irreducibly complex social world, an involvement that allows the patient to experience, feel, and make sense of their emotional suffering.