A two-dimensional model of social representations

This paper reports a series of four experiments conducted to gain insight into students' social representations of the firm. The results suggested a possible revision of the central core theory. They showed that the central elements of the representation were treated differently by the subjects. More specifically, the notion of Profit and Hierarchy, both central, did not play the same role in the representation. The subjects were found to grant evaluative power to the notion of Profit but not to the notion of Hierarchy. This differentiation by evaluative potential was also found for two peripheral elements. These differences suggest that independently of their central or peripheral nature, the various elements of a representation can be placed along an evaluative continuum. By combining the evaluative dimension and the central or peripheral dimension of the elements, we obtain a two-dimensional model of representations which divides discourse and cognition into four fields.     

The influence of social comparison with less fortunate others on task performance: The role of gender motivations or appropriate norms

French male and female children performed a cognitive-perceptual task while anticipating or not public comparisons of their score with probably less fortunate others at a time when concerns about fitting in to social expectations were maximized. As predicted, boys performed better and girls poorer when social comparison was anticipated than when it was not. This suggested that task performance can depend on the compatibility of the social context of cognition with gender motivations or appropriate norms.     

Indirect majority and minority influence: An exploratory study

In a 2 × 2 design, 85 subjects were asked to estimate the size of angles (direct influence) that were either 90 or 85°, after being confronted with incorrect judgements of a majority (88 per cent) or a minority (12 per cent) of people estimating the angles at 50°. Additionally, pre- and post-test measures were used to establish indirect influence on subjects' judgements pertaining to acute angles (i.e. on the estimation of the length of lines constituting the angles, and on the imaginary weight of figures represented by these angles). Overall, little direct influence is observed. This may partly be due to the introduction of a denial of the credibility of the source in all conditions. In fact, some evidence of direct influence is only found in the majority–85° angles condition. An instance of indirect influence (on the estimation of length of lines) appeared as the result of a majority stance when the angles in the experimental phase were 90°. When these angles were 85°, indirect minority influence (on the estimation of weight of figures) was observed. These effects had been predicted on the basis of the hypothesis stating that indirect majority influence would be possible when subjects expected consensus on the correct response (in the 90° angles condition), without being able to reach consensus at the manifest level (because of the denial and the restriction imposed by the clear shape of 90° angles). Indirect minority influence was hypothesized to be stronger in a situation that allows for diverse responses (i.e. for 85° angles).     

Interpretation without hermeneutics: A plea against ecumenism

I have been much helped by Axel Bühler writings on hermeneutics (in particular by his unpublished Conference sull'ermeneutica) and would like to thank him and Donald Davidson for comments.     

The critique of equilibrium theory in economic methodology: A constructive empiricist perspective

Kaldor, one of the leading figures of the post‐war ‘Cambridge School’, has produced a large volume of methodological writings since the mid‐1960s, which we will argue represents one of the major critiques of orthodox equilibrium economic theory produced this century. While Kaldor's position represents a fundamental and radical rejection of the methodological basis of equilibrium economics, he did not provide a systematically formulated alternative methodology for economics. Recent attempts at providing such a reconstruction has argued that scientific realism provides the most convincing philosophical interpretation of Kaldor's methodological contributions. In this paper we will argue that van Fraassen's constructive empiricism represent a more compelling alternative methodological framework to realism for systematizing Kaldor's important contributions. In particular it will be argued that this constructive empiricist reading of Kaldor has the capacity to critically undermine the methodological basis of orthodox equilibrium economics. In addition we explore the potential of this alternative framework to provide a novel and challenging reconstruction of economic methodology.     

Consolidation of Memory for Odor–Reward Association: β-Adrenergic Receptor Involvement in the Late Phase

Experimentally naive rats can learn rapidly to discriminate among three odors to obtain food reinforcement. After three massed trials, they show almost errorless performance. This task has proved to be useful in studying time-dependent postacquisition intracellular processes necessary for long-term memory. The present experiments evaluated the temporal dynamics of the role of β-noradrenergic receptors in long-term consolidation. Rats were implanted with intracerebroventricular cannulae and trained in a single session to find reinforcement in a hole in a sponge impregnated with a particular odor. Injections of the β-receptor antagonist timolol were made at 5 min, 1, 2, or 5 hr after training. Memory and relearning ability were evaluated 48 hr later. Rats treated with timolol 2 hr after training showed a memory deficit at the retention test, but were able to relearn the task normally. Injections at the earlier or later time points were ineffective. The results reinforce previous observations with systemic injections that β-noradrenergic receptors are involved in the late phase of memory consolidation and suggest a critical time window during which they are necessary. The time window is compatible with the current view that long-term memory depends on late involvement of the cAMP cascade leading to new protein synthesis necessary for synaptic reorganization.     

The history and future of the office of research integrity: Scientific misconduct and beyond

This paper looks at the issues and controversies that led to creation of the Office of Research Integrity (ORI) and that dominated its agenda in the early years. The successes and failures of ORI are described and new problems identified. This paper then looks ahead to the future, considering what issues will dominate ORI’s agenda and affect the research institutions, individual scientists, and the scientific community in the next several years.     

Improving accuracy in detecting acoustic onsets

In current cognitive psychology, naming latencies are commonly measured by electronic voice keys that detect when sound exceeds a certain amplitude threshold. However, recent research (e.g., K. Rastle & M. H. Davis, 2002) has shown that these devices are particularly inaccurate in precisely detecting acoustic onsets. In this article, the authors discuss the various problems and solutions that have been put forward with respect to this issue and show that classical voice keys may trigger several tens of milliseconds later than acoustic onset. The authors argue that a solution to this problem may come from voice keys that use a combination of analogue and digital noise (nonspeech sound) detection. It is shown that the acoustic onsets detected by such a device are only a few milliseconds delayed and correlate highly (up to .99) with reaction time values obtained by visual waveform inspection.     

Evolutionary economics of mental time travel?

What is the function of our capacity for 'mental time travel'? Evolutionary considerations suggest that vivid memory and imaginative foresight may be crucial cognitive devices for human decision making. Our emotional engagement with past or future events gives them great motivational force, which may counter a natural tendency towards time discounting and impulsive, opportunistic behavior. In this view, whereas simple episodic memory provides us with a store of relevant, case-based information to guide decisions, mental time travel nudges us towards more restrained choices, which in the long term are advantageous, especially so given human dependence on cooperation and coordination.     

Education does not protect against age-related decline of switching focal attention in working memory

In this experimental study, effects of age and education on switching focal attention in working memory were investigated among 44 young (20-30 years) and 40 middle-aged individuals (50-60 years). To this end, a numeric n-back task comprising two lag conditions (1- and 2-back) was administered within groups. The results revealed a comparable increase of reaction time as a function of lag across age groups, but a disproportionate decrease of accuracy in the middle-aged relative to the young group. The latter effect did not interact with education, which challenges the cognitive reserve hypothesis. Moreover, the high-educated middle-aged participants showed a greater increase of reaction time as a function of lag than their low-educated counterparts. Apparently, they were not able to sustain their relatively high response speed across conditions. These results suggest that education does not protect against age-related decline of switching focal attention in working memory.