Commentary on Jacobs and Michaels (2001): calibration and perceptual learning in event perception.

Jacobs and Michaels (2001) have argued that increased precision in judgments of the viewing distance to a perceived event should be attributed in part to perceptual learning. They found that observers used feedback to attune to the appropriate information variables gradually. McConnell, Muchisky, and Bingham (1998) had found that observers used feedback to calibrate event-specific scaling coefficients, that the calibration of one type of event generalized to other types, and that calibration occurred suddenly. We argue that Jacobs and Michaels must be partially correct and that, in our experiments, both calibration and perceptual attunement were required for accurate and precise judgments.     

Exploring the Complexities of Familism and Acculturation: Central Constructs for People of Mexican Origin

We examined the relationships between three dimensions of familism: importance of family, family support, and family conflict with acculturation, assessed orthogonally (Mexican and American cultural contributions assessed independently), and the relative contribution these factors make to psychological adjustment among 248 (124 women, 124 men) adults of Mexican origin. After controlling for sociodemographic characteristics, positive associations were found between importance of family and the biculturalism of Mexican and American cultural identity; family support and Mexican cultural identity; but no associations between family conflict and level of acculturation. Psychological well-being was positively associated with Mexican cultural identity and family support, whereas psychological distress was associated with greater family conflict and lower family support. The greater relative contribution of Mexican cultural identity to familism and well-being, and the importance of assessing acculturation orthogonally are discussed. This research was supported in part by a Minority Supplement to National Institute of Mental Health Grant MH47193 to the Research Center on the Psychobiology of Ethnicity, Harbor-UCLA Medical Center and by a research award from Pitzer College to Norma Rodriguez.     

Against Educational Humanism: Rethinking Spectatorship in Dewey and Freire

In this essay, I investigate the human act of spectatorship as found in the work of John Dewey and Paulo Freire. I will show that each is thoroughly anti-watching when it comes to educational practices. I then problematize their positions by looking at their spectatorial commitments in the realm of aesthetics. Both Dewey and Freire have a different opinion about spectatorship when it is a matter of watching art. I claim that this different in opinion derives from the practice of ‘educational humanism’. By educational humanism, I mean the tendency to posit stock human traits that derive from pedagogical practices. Ultimately, I will take a stand against educational humanism, against the process of back-forming, from educational circumstances, the desirability, or the undesirability, of human traits.     

Allometry and Space Perception: Compression of Optical Ground Texture Yields Decreasing Ability to Resolve Differences in Spatial Scale

Robert E. Shaw and colleagues showed that allometric variations in biological forms provide visual information about the spatial and temporal scale of biological objects (Mark, Todd, & Shaw, 1981; Pittenger & Shaw, 1975a, 1975b; Pittenger, Shaw, & Mark, 1979; Pittenger & Todd, 1983; Shaw, Mark, Jenkins, & Mingolla, 1982; Shaw & Pittenger, 1977, 1978). In these studies, form changes due to growth of the human head and body were investigated. Subsequently, Bingham (1993a, 1993b) extended these ideas to plant growth and tree perception. Using extant models of tree growth and morphology, 2 allometric relations were simulated. One determined the thickness of tree branches and the other determined their numerocity. The investigations showed that the resulting tree forms could be used by observers to judge tree size. Trees appearing in the context of a ground texture gradient conferred metric scaling on the field that enabled observers to judge the size of other nonbiological objects appearing elsewhere in the context of the ground texture. Results were replicated using actual trees outdoors, pictures of actual trees, and computer generated simulations. In all cases, judgments were accurate at near distances and increasingly underestimated tree size at greater distances. The authors hypothesize that it becomes increasingly difficult to resolve differences in the size and distance of trees as the density of ground texture elements and of branches becomes high. The results of a single study support this surmise. The authors suggest that the accelerating compression of the previous judgment curves was due largely to this effect.     

Two Educational Ideas for 2011 and Beyond

In this article, I argue that education has come to a crossroads. It is so easy to become educated that the role of the teacher can be seen as redundant. Because of this fact, it is time to reconsider what the teacher does, and whether the aim of clear communication by the teacher can, or should, be an educational goal. I argue that clear communication can no longer be embraced. Instead I offer two new educational ideas for 2011 and beyond. One is that the teacher’s role should be a relational role. The other idea is that the teacher’s speech should be poetic rather than informative.     

Identifying the information for the visual perception of relative phase

The production and perception of coordinated rhythmic movement are very specifically structured. For production and perception, 0 degree mean relative phase is stable, 180 degrees is less stable, and no other state is stable without training. It has been hypothesized that perceptual stability characteristics underpin the movement stability characteristics, which has led to the development of a phase-driven oscillator model (e.g., Bingham, 2004a, 2004b). In the present study, a novel perturbation method was used to explore the identity of the perceptual information being used in rhythmic movement tasks. In the three conditions, relative position, relative speed, and frequency (variables motivated by the model) were selectively perturbed. Ten participants performed a judgment task to identify 0 degree or 180 degrees under these perturbation conditions, and 8 participants who had been trained to visually discriminate 90 degrees performed the task with perturbed 90 degrees displays. Discrimination of 0 degree and 180 degrees was unperturbed in 7 out of the 10 participants, but discrimination of 90 degrees was completely disrupted by the position perturbation and was made noisy by the frequency perturbation. We concluded that (1) the information used by most observers to perceive relative phase at 0 degree and 180 degrees was relative direction and (2) becoming an expert perceiver of 90 degrees entails learning a new variable composed of position and speed.     

Distortions of distance and shape are not produced by a single continuous transformation of reach space

We investigated whether distortions of perceived distance and shape could be captured by a single continuous one-to-one transformation of the underlying space. In Experiment 1, the participants reached to touch points around the perimeter of spherical targets viewed at five different distances, to yield simultaneous measures of perceived distance and shape. Different participants reached while using dynamic monocular, static binocular, or dynamic binocular vision. Thin plate spline (TPS) analysis was applied so as to transform a Cartesian grid in such a way as to carry the original target points to the mean reach locations. In all cases, discontinuities appeared in the transformed grid from folding of the space. In Experiment 2, the participants reached to points that lay at the same locus in reach space, but on different portions of the visible target spheres (e.g., front vs. side). The participants reached to different locations when the points were different with respect to shape (e.g., front vs. side) but reached to the same locations when the points were the same with respect to shape (left vs. right side). TPS analysis revealed discontinuities from holes torn in the underlying space. The results show that perceived distance and perceived shape entail different distortions and cannot be captured by a single continuous transformation of reach space.     

The diversification of psychology: a multicultural revolution

The National Multicultural Conference and Summit was held in January 1999 in Newport Beach, California. Hosted by Divisions 17 (Counseling Psychology), 35 (Society for the Psychology of Women), and 45 (Society for the Psychological Study of Ethnic Minority Issues), the event drew support from many American Psychological Association (APA) divisions and other major organizations and sponsors. Approximately 550 psychologists and graduate students attended the conference, which was intended to (a) examine state-of-the-art issues in ethnic minority psychology, (b) identify barriers to becoming a multicultural profession, and (c) forge alliances for political action and advocacy. The summit participants unanimously endorsed resolutions aimed at implementing cultural competence in all psychological endeavors. Multicultural themes arising from the summit included the diversification of the United States; the facilitation of difficult dialogues on race, gender, and sexual orientation; spirituality as a basic dimension of the human condition; the invisibility of monoculturalism and Whiteness; and the teaching of multiculturalism and diversity. APA was strongly encouraged to take the lead in seeing that multicultural competence becomes a defining feature of psychological practice, education and training, and research.