Source accuracy data reveal the thresholded nature of human episodic memory

Episodic recollection supports conscious retrieval of past events. It is unknown why recollected memories are often vivid, but at other times we struggle to remember. Such experiences might reflect a recollection threshold: Either the threshold is exceeded and information is retrieved, or recollection fails completely. Alternatively, retrieval failure could reflect weak memory: Recollection could behave as a continuous signal, always yielding some variable degree of information. Here we reconcile these views, using a novel source memory task that measures retrieval accuracy directly. We show that recollection is thresholded, such that retrieval sometimes simply fails. Our technique clarifies a fundamental property of memory and allows responses to be accurately measured, without recourse to subjective introspection. These findings raise new questions about how successful retrieval is determined and why it declines with age and disease.     

Predicting workplace victim status from personality

This study examined the extent that workplace victim status can be predicted from personality traits. The sample comprised 60 victims and a control group of 60 non-bullied work colleagues, matched on a number of organizational and personal criteria, from two large organizations (one public, one private) in Eire. Both groups completed a semi-structured interview and the ICES Personality Inventory (Bartram, 1994, 1998). Significant differences emerged between victims and nonvictims on all major ICES scales. Victims tended to be less independent and extroverted, less stable, and more conscientious than non-victims. From the development of a weighted composite personality profile, results illustrated that ICES personality traits strongly predicted victim status. The findings suggest that, using a five-factor framework, personality traits may give an indication of those in an organization most likely to be bullied and an indication as to why these individuals become victims.     

From the Question Concerning Technology to the Quest for a Democratic Technology: Heidegger,Marcuse, Feenberg

Frederick Olafson criticizes Hubert Dreyfus's interpretation of Being and Time on a number of points, including the meaning of being, the nature of intentionality, and especially the role of das Man in Heidegger's account of social existence. But on the whole Olafson's critique is unconvincing because it rests on an implausible account of presence and perceptual intuition in Heidegger's early philosophy, and because Olafson maintains an over‐individuated notion of Dasein and consequently a one‐sided conception of the role of das Man. Unfortunately, since Dreyfus confines his commentary exclusively to Division I, he in effect forgoes any attempt to explain how das Man might be understood as playing the simultaneously constitutive and destructive role Heidegger seems to have envisioned for it. I conclude by arguing that the conformity and the conformism represented by das Man are bound together by Heidegger's notion of standoffishness (Abständigkeit).     

Searching the same display twice: Properties of short-term memory in repeated search

Consecutive search for different targets in the same display is supported by a short-term memory mechanism: Distractors that have recently been inspected in the first search are found more quickly in the second search when they become the target (Exp. 1). Here, we investigated the properties of this memory process. We found that this recency advantage is robust to a delay between the two searches (Exp. 2) and that it is only slightly disrupted by an interference task between the two searches (Exp. 3). Introducing a concurrent secondary task (Exp. 4) showed that the memory representations formed in the first search are based on identity as well as location information. Together, these findings show that the short-term memory that supports repeated visual search stores a complex combination of item identity and location that is robust to disruption by either time or interference.     

Something in the way we move: Motion dynamics, not perceived sex, influence head movements in conversation

During conversation, women tend to nod their heads more frequently and more vigorously than men. An individual speaking with a woman tends to nod his or her head more than when speaking with a man. Is this due to social expectation or due to coupled motion dynamics between the speakers? We present a novel methodology that allows us to randomly assign apparent identity during free conversation in a video-conference, thereby dissociating apparent sex from motion dynamics. The method uses motion-tracked synthesized avatars that are accepted by naive participants as being live video. We find that 1) motion dynamics affect head movements but that apparent sex does not; 2) judgments of sex are driven almost entirely by appearance; and 3) ratings of masculinity and femininity rely on a combination of both appearance and dynamics. Together, these findings are consistent with the hypothesis of separate perceptual streams for appearance and biological motion. In addition, our results are consistent with a view that head movements in conversation form a low level perception and action system that can operate independently from top-down social expectations.     

ScanMatch: A novel method for comparing fixation sequences

We present a novel approach to comparing saccadic eye movement sequences based on the Needleman-Wunsch algorithm used in bioinformatics to compare DNA sequences. In the proposed method, the saccade sequence is spatially and temporally binned and then recoded to create a sequence of letters that retains fixation location, time, and order information. The comparison of two letter sequences is made by maximizing the similarity score computed from a substitution matrix that provides the score for all letter pair substitutions and a penalty gap. The substitution matrix provides a meaningful link between each location coded by the individual letters. This link could be distance but could also encode any useful dimension, including perceptual or semantic space. We show, by using synthetic and behavioral data, the benefits of this method over existing methods. The ScanMatch toolbox for MATLAB is freely available online (www.scanmatch.co.uk).     

Human capital,acculturation and social identity: Bosnian refugees in Australia

This article explores the processes of acculturation and identity among refugees from Bosnia and Herzegovina who resettled in the Australian cities of Perth and Sydney during the 1990s. We start from the idea that refugees, through the process of forced migration, lose aspects of their identities that were embedded in their former communities, jobs, skills, language, and culture. Upon arrival in a new society, they seek to reconstruct their identity, and we argue that this happens in the context of the process of acculturation. We use two social psychological perspectives, social identity theory and acculturation theory, and the sociological theory of the migration of human capital, to examine our data collected by qualitative research methods from refugees and Australian professionals who work in the government‐funded refugee resettlement programme. Our data highlight the loss of identity experienced in forced migration, difficulties in refugee acculturation and identity reconstruction, and collective and individual strategies in acculturation and identity adaptation. We see our perspective as essentially interdisciplinary, and take an interactional view of the acculturation and identity processes, as the characteristics of both the host society and the immigrants affect them. Copyright © 2003 John Wiley & Sons, Ltd.     

What about the Male Victims? Exploring the Impact of Gender Stereotyping on Implicit Attitudes and Behavioural Intentions Associated with Intimate Partner Violence

Sex Roles - Past research has indicated that women who work in male-dominated fields, such as politics, face discrimination due to a stereotypically perceived poor fit between their gender and...     

Target location probability effects in visual search: an effect of sequential dependencies

Target location probability was manipulated in a visual search task. When the target was twice as likely to appear on 1 side of the display as the other, manual button-press response times were faster (Experiment 1A) and first saccades were more frequently directed (Experiment 1B) to the more probable locations. When the target appeared with equal probability at each location in this search task, performance benefited from repetition of target location in the preceding trials (Experiment 2). When the trial sequence was constrained so that target location did not repeat within a series of 4 trials, there was no longer an advantage for more probable locations (Experiment 3). The authors conclude that the search benefits for more probable locations resulted from short-term target location repetitions.     

The Chaplain as Translator

The Chaplain finds herself continually in the position of the translator, having to move in the space between subject and object. This space Winnicott calls Transitional, and Ulanov sees as particularly the domain of the clergy. The nature of these gaps is analysed, especially with respect to Chaplaincy and the work of the individual Chaplain. Various kinds of transitional space are examined, and the challenges facing the Chaplain in these situations are highlighted.