On the interpretation of working memory span in adults

Experimental research into children's working memory span has shown that retention duration contributes substantially to span performance, while processing efficiency need not be related to concurrent memory load (Towse, Hitch, & Hutton, 1998). These findings have been used to argue for a model of working memory span that emphasizes time-based forgetting rather than the popular resource-sharing or tradeoff framework. The present paper considers whether adults perform working memory span tasks in a qualitatively different way. Data from reading span and operation span tasks show that adults' performance can be distinguished from that of children, but also that a task-switching model of working memory span can explain some important aspects of performance.     

Friendship Work on Facebook: Young Adults' Understandings and Practices of Friendship

Young adults use social networking sites (SNSs) such as Facebook to engage as friends, yet there has been little systematic research that has investigated their sense‐making of friendship in relation to their uses of Facebook, as well as how Facebook as a socio‐technical system interacts with their friendship practices. Twelve friendship discussion groups were conducted in urban and non‐urban New Zealand, with 26 women and 25 men aged 18–25 years, in same and mixed‐gender groups. Our social constructionist thematic analysis showed the young adults made sense of friendship through themes of ‘fun times together’, an ‘investment’, ‘protection’ and ‘self‐authenticity’, and these meanings were enacted in particular ways within Facebook. This SNS was used primarily for enjoying friendship and ‘investing in’ friendships, and friendship protection was required to maintain friends' online privacy. Facebook provided a way to demonstrate self‐authenticity within friendship relationships through censored ‘show off’ self‐displays and favoured friendship activities. Facebook supported, disrupted and modified these particular friendship understandings by broadening the audience for friendship actions and intensifying friends' responses through 24/7 accessibility and instantaneous activity notifications. These interactions between friendship understandings and Facebook as a socio‐technical system demonstrate how friendship was reinforced, negotiated and re‐worked through this online context. Copyright © 2014 John Wiley & Sons, Ltd.     

Women,philosophy and the history of philosophy*

ABSTRACT

It is only in the last 30 years that any appreciable work has been done on women philosophers of the past. This paper reflects on the progress that has been made in recovering early-modern women philosophers in that time and the role of the history of philosophy in that process. I argue that as women are integrated into the broader picture of philosophy, there is a danger of overlooking the different conditions under which they originally philosophized and which shaped their philosophies. Having retrieved them from oblivion, we now face the challenge of avoiding a ‘new amnesia’ by developing historical narratives and modes of analysis which acknowledge the different conditions within which they worked, without diminishing their contribution to philosophy. I offer these remarks as a contribution to current debates about the forms that historical narrative should take, and the best way to promote women in philosophy today, in the belief that we can learn from our own more recent history.     

Working memory period: the endurance of mental representations.

Working memory span assesses the maximum number of items that can be remembered in the face of concurrent processing. Models of working memory differ on several dimensions, yet many rely exclusively on this span procedure for their evidence. Three experiments consider an alternative paradigm that attempts to capture the endurance limits for remembering a fixed number of items during concurrent processing. Eight-year-old children performed two versions of this working memory period measure--operation period and reading period. Period scores show healthy test-retest reliability and external validity for scholastic attainment, comparing well with span scores in these respects. In addition, period is highly correlated with span and shows similar effects of varying the order in which stimuli are presented. We conclude that the durability of representations is an important factor in both span and period.