Differences between digit naming and number word reading in a flanker task

Numbers can be represented as number words or as digits, but are the two notations processed differently? Two experiments in which a flanker paradigm with a naming task was used were conducted, with digits and number words as targets and flankers. Reaction times were shortest when the flanker denoted the same numerical value as the target. The numerical distance between the target and a numerically different flanker modulated reaction times in all conditions, except for number word targets with digit flankers. The direction of this effect—targets were named faster when the flanker was numerically close than when it was far—indicates that the numerical magnitude representations of numbers are associatively connected. When the target and the flanker were presented in the same format, no difference was observed in the distance effects for the two formats. This indicates that number words activate the abstract representation of their numerical value in a way that is very similar to that for digits.     

Tomatis® Method comparative efficacy in promoting self-regulation in tertiary students: A systematic review

This systematic review sought to determine the evidence on how the Tomatis® Method, a sound stimulation intervention for improving listening, compares to other self-regulation interventions with tertiary students. We searched studies from the following data bases ‘Academic FileOne, CINAHL, Cochrane Library, Communication & Mass Media Complete, eBook (EBSCOHost), HeinOnline, OAPEN Library, PsychARTICLES, PsychINFO, SocINDEX, ScienceDirect, and Google Scholar; and the North-West University repository’ and for the period spanning 2003 to 2013. Studies included for the analysis met these criteria: Published between 2003 and 2013; published and written in English, student participant samples from tertiary institutions such as a universities or colleges; programmes or interventions developed and implemented with a positive effect on well-being or self-regulation; application of the Tomatis® Method in a student population, irrespective of an experimental design. A total of 35 articles met the inclusion criteria. The evidence was thematically analysed using narrative analysis. Findings suggest the Tomatis® Method to be superior to alternative self-regulation approaches in decreasing psychosocial and emotional stressors, as well as enhancing well-being of students. The Tomatis® Method was as effective as alternative approaches in promoting self-awareness and self-monitoring. Alternative methods were more effective than the Tomatis® Method in aspects of critical thinking. The Tomatis® Method appears to compare well with other interventions for the promotion of self-regulation among tertiary students.     

Reconsidering the will to power in Heidegger's ‘Nietzsche’

In this paper, I reconsider Martin Heidegger's well-known interpretation of the Nietzschean conception of the will to power that emerges during the 1930s and 40s, focusing specifically on his conception of the will to power as the principle that suspends (or to use Heidegger's word, ‘permanentises’) becoming. After revealing the difficulties that this reading presents, I provide my own tentative interpretation of the doctrine. Specifically, I argue that Heidegger's opposition of the will to power and becoming cannot be sustained, and provide a so-called ‘strong’ reading of the will to power as an alternative.     

Inadequate and infrequent are not alike: ERPs to deviant prosodic patterns in spoken sentence comprehension

The current study on German investigates Event-Related brain Potentials (ERPs) for the perception of sentences with intonations which are infrequent (i.e. vocatives) or inadequate in daily conversation. These ERPs are compared to the processing correlates for sentences in which the syntax-to-prosody relations are congruent and used frequently during communication. Results show that perceiving an adequate but infrequent prosodic structure does not result in the same brain responses as encountering an inadequate prosodic pattern. While an early negative-going ERP followed by an N400 were observed for both the infrequent and the inadequate syntax-to-prosody association, only the inadequate intonation also elicits a P600.     

Can learning potential in schizophrenia be assessed with the standard CVLT‐II? An exploratory study

This study examined the potential of using the regular administration of a common neuropsychological test, the CVLT-II, to assess learning potential in schizophrenia. Based on List A trial 1 performance and the learning slope, a schizophrenia sample was divided into three learning potential groups (non-learners, learners and high-achievers) that differed in the use of learning strategies. High-achievers utilized more semantic clustering than learners and non-learners, and non-learners were less consistent in words recalled than the other two groups. This standard administration approach is a promising, time-saving alternative to the modified tests of learning potential used so far.     

Dopamine D1 and D2 receptors in the nucleus accumbens core and shell mediate Pavlovian-instrumental transfer

Pavlovian stimuli previously paired with food can markedly elevate the rate of food-reinforced instrumental responding. This effect, termed Pavlovian-instrumental transfer (PIT), depends both on general activating and specific cueing properties of Pavlovian stimuli. Recent evidence suggests that the general activating properties of Pavlovian stimuli are mediated by mesoaccumbens dopamine systems; however, the role of NAC dopamine D1 and D2 receptors is still unknown. Here we examined the effects of a selective dopamine D1 and D2 receptor blockade in the shell and core subregion of the NAC on general PIT. Rats were trained to press a single lever for food, and the effect of a single Pavlovian stimulus previously associated with the same food on performance of that lever was measured in extinction. Results reveal that PIT, that is, the increase in instrumental responding during presentation of the Pavlovian stimulus, was reduced by microinjections of the dopamine D1 receptor antagonist SCH-23390 and, less pronounced, by microinjections of the dopamine D2 receptor antagonist raclopride into the NAC core or shell, respectively. Our data suggest that dopamine D1 and D2 receptors in the NAC core and shell mediate the general activating effects of Pavlovian stimuli on instrumental behavior.     

Perceived trustworthiness of online shops

• Trust has been found to be crucial for consumer behaviour towards online shops. However, existing studies on the role of trust in electronic commerce are mainly based on ad hoc scales to measure trustworthiness, merely rely on self‐reported consequences of trust such as intention to buy, and focus on low‐risk products.
• In a web‐based study, 634 participants interacted with a provider of medical goods, that is a simulated online pharmacy. The study develops and employs a psychometrically sound scale for assessing perceived trustworthiness of online shops. Moreover, it examines the impact of trustworthiness on both consumers' intended and actual behaviour towards online shops.
• Results show that trustworthiness promotes both intention to buy and actual financial risk taking. Perceived risk was not found to moderate the relationship between trustworthiness and intention to buy. Instead, trustworthiness partially mediated the influence of perceived risk on intention to buy. The results from the scale development challenge multidimensional conceptualizations of trust; comparing this finding with other studies suggests that the duration of the relationship might moderate the dimensionality of trust.

Copyright © 2008 John Wiley & Sons, Ltd.     

Object permanence in lemurs

Object permanence, the ability to mentally represent objects that have disappeared from view, should be advantageous to animals in their interaction with the natural world. The objective of this study was to examine whether lemurs possess object permanence. Thirteen adult subjects representing four species of diurnal lemur (Eulemur fulvus rufus, Eulemur mongoz, Lemur catta and Hapalemur griseus) were presented with seven standard Piagetian visible and invisible object displacement tests, plus one single visible test where the subject had to wait predetermined times before allowed to search, and two invisible tests where each hiding place was made visually unique. In all visible tests lemurs were able to find an object that had been in clear view before being hidden. However, when lemurs were not allowed to search for up to 25-s, performance declined with increasing time-delay. Subjects did not outperform chance on any invisible displacements regardless of whether hiding places were visually uniform or unique, therefore the upper limit of object permanence observed was Stage 5b. Lemur species in this study eat stationary foods and are not subject to stalking predators, thus Stage 5 object permanence is probably sufficient to solve most problems encountered in the wild.