Consistent constructs in individuals’ risk taking in decisions from experience

The current research evaluates the consistency of different constructs affecting risk taking in individuals’ experiential decisions across different levels of risk. Specifically, we contrast three major views concerning the psychological constructs that underlie risk taking behavior. The first is the classical economic approach which views risk as the sensitivity to differences in variance. The second is the latent-components approach suggesting the importance of sensitivity to losses and diminishing sensitivity to marginal increases in payoffs. The third approach, risk acceptance, relates to the willingness to accept probable outcomes over certainty. The results of three studies indicate that (1) Individuals do not exhibit consistency in their sensitivity to variance. (2) Consistent diminishing sensitivity is found within the gain and loss domains, but across these domains individuals seem to be consistent only when deciding between constant versus probable outcomes, suggesting that they reliably differ in their risk acceptance. (3) Risk acceptance appears to entail different psychological constructs when the decision problem involves co-occurring gains and losses.     

I Am Yourself: Subjectivity and the Collective

This paper suggests that social and historical forces play an unconscious yet decisive role in our lives. Telling the story of a conversation between Israeli parents about the prospect of their children becoming soldiers, and of an analytic relationship between two Israelis, the paper aims to bring to light a hidden balance of power between family bonds and collective attachments. The paper uses ideas developed by Michel Foucault, Gilles Deleuze, and Felix Guattari in the field of critical theory to examine the ways in which families function as social agents, that is, as socializing institutions. It suggests that, as a result, in some situations, families may face a conflict of identifications, a dilemma between responsibility to kin and responsibility to the collective. If the dilemma commonly persists unheeded, it becomes painfully evident in extreme situations. Such is the case when parents are asked to allow their children to become soldiers, or when individuals strive to care for themselves against a binding ethics of communal and intergenerational responsibility. The paper examines the effect of the collective trauma underlying the dominant discourse of the Israeli society, and the hypercollectivity of the Israeli Kibbutz, in generating powerful unconscious conflicts that haunt subjective and family life. The paper argues that collective affiliations and consequently, collective politics are inseparable from individual psychology and interpersonal relations. It suggests that, for this reason, political awareness and political exchange can play a crucial, liberating role in the therapeutic relationship, and life in general.     

Association and dissociation between detection and discrimination of objects of expertise: Evidence from visual search

Expertise in face recognition is characterized by high proficiency in distinguishing between individual faces. However, faces also enjoy an advantage at the early stage of basic-level detection, as demonstrated by efficient visual search for faces among nonface objects. In the present study, we asked (1) whether the face advantage in detection is a unique signature of face expertise, or whether it generalizes to other objects of expertise, and (2) whether expertise in face detection is intrinsically linked to expertise in face individuation. We compared how groups with varying degrees of object and face expertise (typical adults, developmental prosopagnosics [DP], and car experts) search for objects within and outside their domains of expertise (faces, cars, airplanes, and butterflies) among a variable set of object distractors. Across all three groups, search efficiency (indexed by reaction time slopes) was higher for faces and airplanes than for cars and butterflies. Notably, the search slope for car targets was considerably shallower in the car experts than in nonexperts. Although the mean face slope was slightly steeper among the DPs than in the other two groups, most of the DPs’ search slopes were well within the normative range. This pattern of results suggests that expertise in object detection is indeed associated with expertise at the subordinate level, that it is not specific to faces, and that the two types of expertise are distinct facilities. We discuss the potential role of experience in bridging between low-level discriminative features and high-level naturalistic categories.     

The open-object illusion: size perception is greatly influenced by object boundaries

This study presents a new powerful visual illusion, in which simple “open” objects—ones with missing boundaries—are perceived as bigger than the same size, fully “closed” objects. In a series of experiments that employed a continuous-response adjustment procedure, it was found that the lack of vertical boundaries inflated the perceived width of an object, whereas the lack of horizontal boundaries inflated its perceived length. The effect was highly robust and it was replicated across different stimulus types and experimental parameters, with almost all observers exhibiting a strong effect. In contrast to the overestimation of the size of an object due to missing boundaries, the inclusion of inner boundaries within an object caused observers to underestimate its size, suggesting that filled space sometimes shrinks, rather than inflates, the perceived size of an object. The open-object illusion bears practical implications for graphics and design as well as important theoretical implications. Specifically, it indicates that the perception of an object’s area is not veridical but rather critically depends on contour closure. It is suggested that the visual system extends the missing boundaries of open contour objects, which results in an overestimation of the object’s size.