Multiple-object tracking is based on scene, not retinal, coordinates

This study tested whether multiple-object tracking-the ability to visually index objects on the basis of their spatiotemporal history-is scene based or image based. Initial experiments showed equivalent tracking accuracy for objects in 2-D and 3-D motion. Subsequent experiments manipulated the speeds of objects independent of the speed of the scene as a whole. Results showed that tracking accuracy was influenced by object speed but not by scene speed. This held true whether the scene underwent translation, zoom, rotation, or even combinations of all 3 motions. A final series of experiments interfered with observers' ability to see a coherent scene by moving objects at different speeds from one another and by distorting the perception of 3-D space. These reductions in scene coherence led to reduced tracking accuracy, confirming that tracking is accomplished using a scene-based, or allocentric, frame of reference.     

Unique temporal change is the key to attentional capture

Abstract— Attentional capture refers to the observation that some events break through and attract one's attention even when one is engaged in a task for which these events are irrelevant. Previous research, focusing primarily on spatial factors, has shown that a new object is more salient in this regard than an abrupt change in an object's features. Here we show that feature changes can be as effective as new objects in capturing attention, provided that they occur during a period of temporal calm. Conversely, both feature changes and new objects are far less effective in capturing attention when they occur simultaneously with other display changes, such as coincident with the initial onset of the display or with small visual transients that occur during a display transition. These results highlight the importance of considering both space and time in studies of attentional capture; the most effective stimulus is unique in both dimensions.     

No country for girly men: High instrumentality men express empathic concern when caring is “manly”

Two studies explored the relationship between men’s gender role identity (as measured by the Bem Sex Role Inventory) and their experience of empathic concern (situational empathy). In both, participants read of a man coping with his friend’s death while being exposed to one of three subliminal primes: “real men care”/“caring is strength,” “girly men care”/“caring is weakness,” or “people are walking.” Congruent with previous research, higher femininity (expressivity) predicted greater empathic concern irrespective of prime. The real men/strength primes tended to: (1) increase empathic concern among high instrumentality men; and (2) link empathic concern to predominantly positive projected coping responses when participants thought of themselves in the survivor’s situation, consistent with the broaden-and-build theory of positive emotions. Thus, subtly framing empathic concern as a positive emotional response that is congruent with an agentic self-appraisal seems to boost traditionally masculine men’s willingness to experience it.     

Me, myself, and us: salient self-threats and relational connections

Guided by their own amoebic self theory (C. T. Burris & J. K. Rempel, 2004), in 6 studies the authors explore the impact that involvement in an intimate relationship has on how a person appraises and responds to threat. They first show that people in relationship feel less constrained by their physical bodies compared with single people. In 3 subsequent studies involving physical size, blood/body donation, sexual activities, and responses to evil, they show that generalized sensitivity to bodily threat predicts self-protective reactions to specific physical threats among singles, but not among people in relationship, suggesting that intimate relationship involvement decreases the salience of the physical body. In the final pair of studies, they show that the salience of the physical body rebounds when people in relationship are primed, either subliminally or supraliminally, to think of themselves as distinct and separate from their partners. Thus, the present research shows how conceptualizing the self as "us" rather than "me" can transform an individual's response to the outside world, and highlights how physical cues in particular are affected by this process.     

Finger flexor motor control patterns during active flexion: an in vivo tendon force study

An in vivo tendon force measurement system was used to evaluate index finger flexor motor control patterns during active finger flexion. During open carpal tunnel release surgery (N=12) the flexor digitorum profundus (FDP) and flexor digitorum superficilias (FDS) tendons were instrumented with buckle force transducers and participants performed finger flexion at two different wrist angles (0 degrees or 30 degrees ). During finger flexion, there was concurrent change of metacarpophalangeal (MCP) and proximal interphalangeal (PIP) joint angles, but the FDP and FDS tendon force changes were not concurrent. For the FDS tendon, no consistent changes in force were observed across participants at either wrist angle. For the FDP tendon, there were two force patterns. With the wrist in a neutral posture, the movement was initiated without force from the finger flexors, and further flexion (after the first 0.5s) was carried out with force from the FDP. With the wrist in a flexed posture, the motion was generally both initiated and continued using FDP force. At some wrist postures, finger flexion was initiated by passive forces which were replaced by FDP force to complete the motion.     

Push-you-pull-you: the boundaried self in close relationships

Based on Amoebic Self Theory, the authors propose that the salience of different threats to the self affects the extent to which an intimate relationship partner is pushed away (excluded) or pulled closer (included). When social threat is salient among persons in relationships, it is hypothesized that partners will attempt to defuse the resulting sense of interpersonal vulnerability: offending partners may be pushed away, whereas offenders themselves may draw closer. When spatial-symbolic threat is salient and the relationship's capacity to function as an identity marker is jeopardized, it is hypothesized that the partner--regardless of his or her role--will be pulled closer to maintain the perception that the relationship is secure. Self-report responses to hypothetical scenarios and perceptions of behaviors during a role-play were generally consistent with these hypotheses, suggesting that both an intimate partner and the relationship with that partner can be incorporated into the self.     

‘Word without Measure’: The (Ir)reducible History of Jesus Christ in John Webster

John Webster's Christology bears a twofold character. First, Webster attends to the particular identity of the Son of God who is and acts in and as Jesus Christ. Second, Webster articulates, in increasing measure, the rootedness of the Word's assumption of the flesh in the Son's eternal relation to Father and the Holy Spirit. Both features of Jesus' history – namely its irreducible particularity and architectural traceability – establish God's self-correspondence: the concrete history of God with us corresponds to God's eternal being and act. Webster's later work accords material priority to the Son's antecedent existence as the second person of the Holy Trinity. I locate the impetus for this shift in Webster's theological construal of history which serves, in turn, to inform and revise the dogmatic task of unfolding Jesus' history. No longer inhibited by a predominately modern view of human history, Webster more readily traces the history of Jesus Christ to the eternal procession of the Son of God.     

If I Only Had a Membrane: A Review of Amoebic Self Theory

Beginning from the premise that organisms must ‘eat, retreat, and excrete’ to survive, Amoebic Self Theory (AST) posits that humans also struggle for survival of the psychological sense of self – engulfing that which is desirable, resisting external threats, and disposing that which is toxic or redundant. These motives manifest across three related but distinct domains – the bodily, the social, and the spatial-symbolic – as facilitated by a boundary that differentiates ‘self’ from ‘not-self’. AST-inspired research has demonstrated both situational and chronic variation in the strength of these motives across domains, as well as their relevance to a breadth of diverse phenomenon, although advocates of other theoretical perspectives have focused primarily on the ‘dust mites experiment’. After considering their interpretations and claims, a case is made for AST as an integrative, generalist theory that generates novel predictions.