It's what's on the outside that matters: an advantage for external features in children's word recognition

The relative importance of internal and external letter features of words in children's developing reading was investigated to clarify further the nature of early featural analysis. In Experiment 1, 72 6-, 8-, and 10-year-olds read aloud words displayed as wholes, external features only (central features missing, thereby preserving word shape information), or internal features only (central features preserved). There was an improvement in the processing of external features compared with internal features as reading experience increased. Experiment 2 examined the processing of the internal and external features of words employing a forward priming paradigm with 60 8-, 10-, and 12-year-olds. Reaction times to internal feature primes were equivalent to a nonprime blank condition, whereas responses to external feature primes were faster than those to the other two prime types. This advantage for the external features of words is discussed in terms of an early and enduring role for processing the external visual features in words during reading development.     

A feeling for finance: Motivations for trading on the stock exchange

Emotions have long been associated with financial markets. For traders trying to make money by profiting from market fluctuations, the uncertainties and risks of involvement loom large, and the outcomes of participation are instantly measurable. Much research has therefore focused on the role that emotions – such as fear, greed, trust, confidence and hope – play in motivating traders to try and anticipate what the market is doing. But there is a different kind of emotional experience that is equally important in motivating financial trading and which research has hitherto neglected. The development of communications technology has generated new kinds of objects (represented in visual formats displayed on computer screens) with which people interact, forming emotionally-laden relationships comparable, in some ways, to more traditional social relationships. This paper focuses on individual online share traders who use a style known as Technical Analysis. It examines how they become emotionally engaged in and attached to their trading practices, in ways that motivate them, independently of any concern with financial outcomes. The paper then provides a broader conceptualisation of the roles of reason and emotion in financial markets.     

How not to revisit Highway 61: Negative repetition effects in a post-cue naming task

Repetition effects were studied in a post-cue naming task, in which participants were cued to name one of two stimuli following their presentation. When pairs of pictures were repeated in a second block, former distractors (not named in Block 1) were named faster than former targets (named in Block 1). This negative repetition effect was not found when two words rather than two pictures were used or when a semantic categorization task was used with two pictures. From this we conclude that the effect reflects a process of mapping from a semantic representation to a name. Negative repetition was not found with a simultaneous selection cue, suggesting that it arose only when there was competition for name selection. It was also dependent on memory for previous acts of semantic naming. We propose that negative repetition reflects a form of speech monitoring that is applied when there is competition in the process of mapping from semantic to name representations.     

The PIG in sPrInG: Evidence on letter grouping from the reading of buried words

We introduce a novel procedure for investigating factors that determine selective attention to letters in words. Participants were presented with words (in Experiments 1 and 3) and nonwords (in Experiment 2) that contained a buried word whose letters differed in color relative to the other letters present (e.g.,pig, in spring). The strings were presented in single case or mixed case, keeping the letters of the buried words in one case (SpRiNg). The time in which the whole stimulus was named was shorter for same-case than for mixed-case strings (forspring: spring < SpRiNg). In contrast, the time in which buried words were named was shorter in mixed- than in same-case strings (forpig: spring > SpRiNg). Across items, the effects of case mixing were negatively correlated across the two tasks. The positive effect of case mixing for buried words also occurred irrespective of whether the whole string was a word or a nonword, and there were contributions from similarity of both letter size and case. The results suggest that case mixing can facilitate selective attention to letters, which is otherwise disrupted by size- and case-based grouping across letter strings. The study provides evidence for letter grouping using size and case information.     

Case-mixing effects on children's word recognition: Lexical feedback and development

Presenting words in MiXeD cAsE has previously been shown to disrupt naming performance of adult readers. This effect is greater on nonwords than it is on real words. There have been two main accounts of this interaction. First, case mixing may disrupt naming via non-lexical spellingto-sound correspondences to a greater extent than it disrupts lexical naming. Alternatively, stored lexical knowledge of words may feed back to a visual analysis level during processing of a visually presented word, helping known words to overcome the visual disruption caused by case mixing. In the present study, when young children (aged 6 and 8 years) were tested, case mixing did not disrupt nonword naming more than word naming. However, slightly older children (aged 9 years) demonstrated the same pattern of performance as adults. These results support the view that topdown lexical information can aid overcoming visual disruption to words, and that beginning readers have not developed the stored word knowledge necessary to allow this. In addition, a greater case-mixing effect on high-frequency words for the youngest age group (6-year-olds) suggests that their word recognition may be based more on wholistic visual features than is that of older children.     

Life‐events and post‐traumatic stress in a sample of English adolescents

The aim of the present study was to investigate the lifetime prevalence of negative life‐events and their association with post‐traumatic stress in English adolescents. Of the 427 adolescents surveyed, 360 (84%) endorsed at least one negative event. Respondents were asked to complete the Impact of Event Scale (IES: Horowitz, Wilner and Alvarez, 1979) for each event that they endorsed. For boys, highest levels of post‐traumatic stress were found in those who had experience of a ‘family member with a drink or drugs problem’, followed by ‘parental separation or divorce’, ‘life threat to family member’, and ‘life‐threat to self ’. For girls, highest levels of post‐traumatic stress were found in those who had experienced ‘attack or physical assault to self ’, followed by ‘family member with drink or drugs problem’, ‘parental separation or divorce’, and ‘life threat to family member’. These data suggest that moderate levels of post‐traumatic stress are present in around one fifth of adolescents who have experienced one of these events and that community levels of post‐traumatic stress in adolescents may be higher than previously thought. Copyright © 2000 John Wiley & Sons, Ltd.     

The time course of negative repetition effects in post-cue naming

It has previously been shown that when picture pairs are repeated across blocks in a post-cue naming task, former distractors are named faster than former targets: the “negative repetition effect” (Mayall, Humphreys, & Kotsanis, 2002). In the present study the time course of this effect was examined. Experiment 1 demonstrated that the effect became apparent after a lag of only two intervening trials, with former targets being named faster than former distractors after a lag of zero trials. Experiment 2 used a new baseline condition with repeated picture pairs for which no response was required on the first presentation. Comparisons with this baseline indicated that the negative repetition effect is the result of suppression of former targets as opposed to facilitation of former distractors. The results support the proposal of Mayall et al. that the negative repetition effect reflects a form of speech monitoring that is applied when there is competition in the process of mapping from semantics to name representations.