Synchronous change and perception of object unity: evidence from adults and infants.

Adults and infants display a robust ability to perceive the unity of a center-occluded object when the visible ends of the object undergo common motion (e.g. Kellman, P.J., Spelke, E.S., 1983. Perception of partly occluded objects in infancy. Cognitive Psychology 15, 483-524). Ecologically oriented accounts of this ability focus on the primary of motion in the perception of segregated objects, but Gestalt theory suggests a broader possibility: observers may perceive object unity by detecting patterns of synchronous change, of which common motion is a special case. We investigated this possibility with observations of adults and 4-month-old infants. Participants viewed a center-occluded object whose visible surfaces were either misaligned or aligned, stationary or moving, and unchanging or synchronously changing in color or brightness in various temporal patterns (e.g. flashing). Both alignment and common motion contributed to adults' perception of object unity, but synchronous color changes did not. For infants, motion was an important determinant of object unity, but other synchronous changes and edge alignment were not. When a stationary object with aligned edges underwent synchronous changes in color or brightness, infants showed high levels of attention to the object, but their perception of its unity appeared to be indeterminate. An inherent preference for fast over slow flash rates, and a novelty preference elicited by a change in rate, both indicated that infants detected the synchronous changes, although they failed to use them as information for object unity. These findings favor ecologically oriented accounts of object perception in which surface motion plays a privileged role.     

Defending the Possibility of Knowledge

In this paper, I propose a solution to Fitch’s paradox that draws on ideas from Edgington (Mind 94:557–568, 1985), Rabinowicz and Segerberg (1994) and Kvanvig (Noûs 29:481–500, 1995). After examining the solution strategies of these authors, I will defend the view, initially proposed by Kvanvig, according to which the derivation of the paradox violates a crucial constraint on quantifier instantiation. The constraint states that non-rigid expressions cannot be substituted into modal positions. We will introduce a slightly modified syntax and semantics that will help underline this point. Furthermore, we will prove results about the consistency of verificationism and the principle of non-omniscience by model-theoretical means. Namely, we prove there exists a model of these principles, and delineate certain constraints they pose on a structure in which they are true.     

Affective stimuli capture attention regardless of categorical distinctiveness: An emotion-induced blindness study

Affective stimuli capture attention, whether their affective value stems from emotional content or a history of reward. The uniqueness of such stimuli within their experimental contexts might imbue them with an enhanced categorical distinctiveness that accounts for their impact on attention. Indeed, in emotion-induced blindness, categorically distinctive neutral pictures disrupt target perception, albeit to a lesser degree than do emotional pictures. Here, we manipulated the categorical distinctiveness of distractors in an emotion-induced blindness task. Participants searched within RSVP streams for a target that followed an emotional or a neutral distractor picture. In a categorically homogenous condition, all non-distractor items were exemplars from a uniform category, thus enhancing the distractor's categorical distinctiveness. In a categorically heterogeneous condition, each non-distractor item represented a distinct category. Neutral distractors disrupted target perception only in the homogenous condition, but emotional distractors did so regardless of their categorical distinctiveness.     

Viewpoint and orientation influence picture recognition in the blind

In the first three experiments, subjects felt solid geometrical forms and matched raised-line pictures to the objects. Performance was best in experiment 1 for top views, with shorter response latencies than for side views, front views, or 3-D views with foreshortening. In a second experiment with blind participants, matching accuracy was not significantly affected by prior visual experience, but speed advantages were found for top views, with 3-D views also yielding better matching accuracy than side views. There were no performance advantages for pictures of objects with a constant cross section in the vertical axis. The early-blind participants had lower performance for side and frontal views. The objects were rotated to oblique orientations in experiment 3. Early-blind subjects performed worse than the other subjects given object rotation. Visual experience with pictures of objects at many angles could facilitate identification at oblique orientations. In experiment 5 with blindfolded sighted subjects, tangible pictures were used as targets and as choices. The results yielded superior overall performance for 3-D views (mean, M = 74% correct) and much lower matching accuracy for top views as targets (M = 58% correct). Performance was highest when the target and matching viewpoint were identical, but 3-D views (M = 96% correct) were still far better than top views. The accuracy advantage of the top views also disappeared when more complex objects were tested in experiment 6. Alternative theoretical implications of the results are discussed.     

A paradoxical effect of presession attention on stereotypy: antecedent attention as an establishing, not an abolishing, operation

Previous studies have shown that presession attention for problem behavior can serve as an abolishing operation when attention functions as a positive reinforcer. In the current study, we show that the stereotypy of a child with severe disabilities was undifferentiated during standard analogue functional analysis conditions. However, when noncontingent presession attention was provided, stereotypy occurred for social attention as a positive reinforcer, suggesting that the antecedent manipulation functioned as an establishing operation.     

It Only Looks the Same From a Distance: How U.S., Finnish,and Irish Schools Support Struggling Readers

This study examined how U.S., Finnish, and Irish educators identified and supported struggling readers. Using Johnston's (2011) framework for evaluating reading interventions and activity theory (Engeström, 1999), we interviewed educators in four U.S., three Irish, and three Finnish schools. In the United States, the adoption of three beliefs—reductionist reading philosophy, difficulties as cognitive and remediated through instruction, and reading problems as unexpected phenomena—reinforced a skills-driven approach. Irish and Finnish educators adopted a more holistic view of reading, and teachers used formative assessment to support struggling students over extended periods while working collaboratively with other staff. Discussion focuses on how these beliefs influenced divisions of labor, roles and responsibilities, and the urgency with which difficulties were addressed.     

The role of childhood sexual seduction in the development of an erotic transference: Perversion in the psychoanalytic situation

Abstract

Based on Ferenczi's Confusion of Tongues theory of trauma we proposed the following hypothesis: “An erotic transference is an enactment in the here-and-now of the psychoanalytic situation of a childhood seduction of sexual trauma”. We delineate the relational approach to the analysis of the incest trauma, both theoretically and clinically. The concept of enactment helps us understand the emergence of the incest trauma in the psychoanalytic situation as an indication of an earlier childhood experience. Three clinical examples are discussed which illustrate ways of using the hypothesis within the analytic process. The clinical examples demonstrate the value of enactments that are contained in the unconscious communication that the erotic transference represents.

Rachman AWM et al. Die Rolle sexueller Verführung in der Kindheit bei der Entwicklung einer erotischen Übertragungsperversion in der psychoanalytischen Situation

Basierend auf Ferenczi′s Konfusion der Zungen Trauma Theorie schlugen wir die folgende Hypothese vor: Eine erotische Übertragung ist eine Inszenierung im Hier und Jetzt der psychoanalytischen Situation einer Kindheits Verführung als sexuellem Trauma. Wir entwerfen den relationalen Ansatz theoretisch und klinisch in Bezug auf die Analyse des Inzest Traumas. Das Konzept der Reinszenierung hilft uns das Auftauchen des Inzest Traumas als ein Anzeichen einer früheren Kindheitserfahrung in der psychoanalytischen Situation zu verstehen. Es werden drei klinische Beispiele diskutiert, die die Wege illustrieren, die Hypothese innerhalb des analytischen Prozesses anzuwenden. Die klinischen Beispiele zeigen den Wert von (Re-) Inszenierungen, die in der unbewußten Kommunikaton enthalten sind, welche die erotische Übertragung repräsentieren.

Rachman A WM et. al. El rol de la seducción sexual infantil en el desarrollo de una transferencia erótica: perversión en la situación analítica.

Basado en la teoría del trauma de la confusión de lenguas de Ferenczi, proponemos la siguiente hipótesis: una transferencia erótica es un enactment en el aquí y el ahora de la situación analítica del trauma de la seducción sexual infantil. Trazamos la aproximación relacional del análisis del trauma del incesto. El concepto de enactment nos ayuda a entender la emergencia del trauma del incesto en la situación psicoanalitica, como indicación de una experiencia infantil temprana.

Se presentan tres ejemplos clínicos que ilustran formas de uso de la hipótesis desde el proceso analítico. Estos ejemplos clínicos demuestran el valor de los enactments contenidos en la comunicación inconsciente que representa la transferencia erótica.