The Role of Long-Term Memory in Digit–Symbol Test Performance in Young and Older Adults

ABSTRACT

The psychological functions assessed by substitution tests, and the age-related performance decline, are not well understood. Here several aspects of long-term memory were manipulated across younger and older adults. A 45-page Digit–Symbol test was employed. Each page contained a 9-item digit symbol code-table and 9 response items. There were 9 study conditions with each condition deployed across 5 pages, or trials, of the test. The conditions were formed by crossing two within-subjects factors, each with 3 levels. The first factor, Digit Order, pertained to having the code table digits in numerical order vs. a pseudo-random order fixed across trials vs. a pseudo-random order that varied across trials. The second factor, Symbol Pairing, pertained to having a fixed digit–symbol pairing across trials vs. having a varying digit–symbol pairing across trials vs. having a novel set of 9 symbols introduced on each of the 5 trials. Including the additional factor, Age, resulted in a 2 × 3 × 3 mixed randomised block design. The older group was slowed, F(1, 22) = 17.267, p < .001, and overall-performance was poorer when the digits were arranged non-numerically, F(1,44) = 55.403, p < .001. An Age by Symbol–Order interaction indicated that use of novel symbols disadvantaged only the older participants, F(1, 44) = 6.577, p = .014. While there was no evidence that incidental paired-associate learning or spatial memory affect digit–symbol performance, symbol familiarity may be important to digit symbol test completion in older adults. The benefit of ordinally arranged digits in the coding table highlights a fundamental process difference between Digit–Symbol and Symbol–Digit test formats.     

Uncovering and managing unconscious ways of ‘looking’: A case study of researching educational care

Abstract

In this paper the author argues for the importance of those working as counsellors with children and adolescents to have specialist training. She outlines the need for many more properly trained counsellors to be available to children, and emphasizes the need for them to have detailed knowledge of children's emotional development. The argument is throughout illustrated with clinical examples. She draws attention to the differences between working with children and adolescents as opposed to adults, with an exploration of the special skills that need to be developed if working with younger clients. Reference is made to the differences in the contract and the thinking about the family. She explores the importance of including in a specialist training infant observation and the consideration of group and institutional dynamics.     

If robots R–US,who am I: Online ‘Christian’ responses to artificial intelligence

In this paper, I present responses to GRIN technologies drawn from Christian posts on the Internet, to answer the following research questions: 1. Which approach to imago Dei informs the online Christian response to artificial intelligence and artificial life (AI/AL)? and 2. To what extent does the preference for a particular approach emerge from a desire to construct the Self? Drawing upon Herzfeld (2002) discussion of AI and theological approaches to understanding the meaning of imago Dei, or humankind made in the image of God, it is shown that the Christian response to AI and AL is elaborated mostly through the functionalist and substantive approaches. It also largely constructs the GRN future as a Hell scenario. With reference to Bhabha's postcolonial model of ambivalence, it is argued that this response is motivated by a desire to regain control over the discursive construction of the Self, which for some, is challenged by AI and AL.