Attachment and Attention: An investigation of biases in attention as they relate to attachment security in infancy and adulthood

At the advent of attachment theory, John Bowlby hypothesized that cognition and emotion are shaped by early experiences with primary caregivers (Bowlby, 1980). This idea – that aspects of cognition may be organized within early relationships – still plays a prominent role in contemporary attachment theory. The studies described within this dissertation provide support for the idea that attachment security in infancy and adulthood are associated with differences in cognition – particularly with differences in the way that people attend to certain forms of stimuli. Mothers and children in the studies described here were first assessed for individual differences in attachment security. They were then administered the dot-probe paradigm in order to assess attention to infant pictures with varying emotional expressions (distressed, calm, and happy) versus pictures of neutral objects. Children classified as avoidant with their mother at one year of age rapidly attended towards infant picture stimuli and then moved their attention away to neutral object stimuli, and children classified as ambivalent with their mother at one year of age generally attended to infant picture stimuli over neutral object stimuli. Moreover, mothers that were more dismissive of attachment were more likely to attend towards neutral objects than to crying infant pictures. Taken together, these findings provide support for the notion that individual differences in attachment security are associated with differences in attention

The Inhibition-Deficit Hypothesis: A Possible Neurological Mechanism for Age-Related Changes in the Formation of Problem-Solving Set

In the process of problem-solving, a limiting of possible solutions often occurs which causes subjects to prematurely narrow their problem-solving options. This tendency is called problem-solving set. It is possible that there is an underlying neurological mechanism which regulates this process. It has been shown that the frontal lobes play a role in the inhibition of irrelevant information, suggesting that they may be involved in the formation of set. Because the frontal lobes are suspected to degenerate somewhat with age, the elderly may have less of a tendency towards problem-solving set than young adults. In the current study, set was induced trough the use of anagrams (tasks which require the subject to unscramble a scrambled word to produce a common word). Young adults were compared to elderly adults. Set-forming anagrams were all solvable by the same strategy, and a target anagram (which appeared after the set-forming anagrams) was solvable by a different strategy. The number of set-forming anagrams given was varied, and problem-solving set was measured by comparing latencies between set-forming anagrams and the target anagram. It was found that anagrams are effective at inducing problem-solving set, that the intensity of problem-solving set increases with set size, and that there may indeed be a neurological explanation for age-related differences in the formation of problem-solving set

Accounting for expert performance: the devil is in the details

The deliberate practice view has generated a great deal of scientific and popular interest in expert performance. At the same time, empirical evidence now indicates that deliberate practice, while certainly important, is not as important as Ericsson and colleagues have argued it is. In particular, we (Hambrick, Oswald, Altmann, Meinz, Gobet, & Campitelli, 2014) found that individual differences in accumulated amount of deliberate practice accounted for about one-third of the reliable variance in performance in chess and music, leaving the majority of the reliable variance unexplained and potentially explainable by other factors. Ericsson's (2014) defense of the deliberate practice view, though vigorous, is undercut by contradictions, oversights, and errors in his arguments and criticisms, several of which we describe here. We reiterate that the task now is to develop and rigorously test falsifiable theories of expert performance that take into account as many potentially relevant constructs as possible

Gender and sexual orientation differences in cognition across adulthood : age is kinder to women than to men regardless of sexual orientation

Despite some evidence of greater age-related deterioration of the brain in males than in females, gender differences in rates of cognitive aging have proved inconsistent. The present study employed web-based methodology to collect data from people aged 20-65 years (109,612 men; 88,509 women). As expected, men outperformed women on tests of mental rotation and line angle judgment, whereas women outperformed men on tests of category fluency and object location memory. Performance on all tests declined with age but significantly more so for men than for women. Heterosexuals of each gender generally outperformed bisexuals and homosexuals on tests where that gender was superior; however, there were no clear interactions between age and sexual orientation for either gender. At least for these particular tests from young adulthood to retirement, age is kinder to women than to men, but treats heterosexuals, bisexuals, and homosexuals just the same

The DBOX Corpus Collection of Spoken Human-Human and Human-Machine Dialogues

This paper describes the data collection and annotation carried out within the DBOX project ( Eureka project, number E! 7152). This project aims to develop interactive games based on spoken natural language human-computer dialogues, in 3 European languages: English, German and French. We collect the DBOX data continuously. We first start with human-human Wizard of Oz experiments to collect human-human data in order to model natural human dialogue behaviour, for better understanding of phenomena of human interactions and predicting interlocutors actions, and then replace the human Wizard by an increasingly advanced dialogue system, using evaluation data for system improvement. The designed dialogue system relies on a Question-Answering (QA) approach, but showing truly interactive gaming behaviour, e.g., by providing feedback, managing turns and contact, producing social signals and acts, e.g., encouraging vs. downplaying, polite vs. rude, positive vs. negative attitude towards players or their actions, etc. The DBOX dialogue corpus has required substantial investment. We expect it to have a great impact on the rest of the project. The DBOX project consortium will continue to maintain the corpus and to take an interest in its growth, e.g., expand to other languages. The resulting corpus will be publicly released

Comparison between Spanish young and elderly people evaluated using Rivermead Behavioural Memory Test

The first objective of this work was to compare scores obtained in the daily memory function between young and elderly people, and to check whether there are differences between the groups for each of the profile scores obtained in the memory test. A second aim of this paper is to study the relationship between everyday memory and age, while controlling for gender and educational level. The total and profile scores obtained in the Rivermead Behavioural Memory Test were compared in a sample of 60 young and 120 elderly people from Valencia (Spain). Results showed significant differences between the two groups: those between 18 and 30 years obtained a higher average than those over 65. Once the group comparison was controlled for gender and educational level, the statistical effect of age group disappeared. The non-significant effect of group can not be explained by the introduction of gender, because both its main effect and the interaction were not statistically significant. However, educational level had a statistically significant effect which may explain the non-significant effect of group in this new analysis. The main conclusion is the need to carefully control for educational level in all studies related with everyday memory and ageing, as the differences found could be due to generational differences more than to biological deterioratio