New insights on eye blindness and hand sight: Temporal constraints of visuo-motor networks

Pioneer experiments on saccadic suppression have shown that this effect is not followed by motor disorientation: Conscious perception of a target displacement can be dissociated from correct manual target reaching. It has subsequently been demonstrated that movement corrections with the same latency and spatial characteristics can be produced in conditions allowing perceptual awareness of perturbation of a target as in condition inducing saccadic suppression. In addition to the qualitative dissociation between motor performance and conscious awareness, quantitative temporal dissociations in action can be observed by manipulating different features of the visual target. When the target of an ongoing simple action is perturbed, a temporal advantage is found for responses to perturbations of location relative to colour and shape. Furthermore, there seems to be a temporal advantage for automatic motor corrections made in response to a target displacement as compared to other responses (other ongoing movement adjustments, movement interruption, conditional motor response such as pressing a key, verbal response, delayed matching-to-sample tasks). Thus, this paper reviews evidence for the fact that the temporal characteristics of any given response to a stimulus are dependent both on the sensory processes and on the type of response generated. Accordingly, identification responses (such as verbal report) to a visual stimulus are much slower than motor corrections of an ongoing movement in response to a target location change because of different processing times of the stimulus features (“What” compared to “Where”) and of the response itself (“What” compared to “How”). The existence of two continua (What/Where and What/How) is proposed between these two extreme stimulus- response combinations. This model may be a useful framework to better understand visuo-motor transformations and the network of connections between visual and motor areas.     

Managing diversity in organizations: An integrative model and agenda for future research

The literature on policies, procedures, and practices of diversity management in organizations is currently fragmented and often contradictory in highlighting what is effective diversity management, and which organizational and societal factors facilitate or hinder its implementation. In order to provide a comprehensive and cohesive view of diversity management in organizations, we develop a multilevel model informed by the social identity approach that explains, on the basis of a work motivation logic, the processes by, and the conditions under which employee dissimilarity within diverse work groups is related to innovation, effectiveness, and well-being. Building on this new model, we then identify those work group factors (e.g., climate for inclusion and supervisory leadership), organizational factors (e.g., diversity management policies and procedures, and top management's diversity beliefs), and societal factors (e.g., legislation, socioeconomic situation, and culture) that are likely to contribute to the effective management of diversity in organizations. In our discussion of the theoretical implications of the proposed model, we offer a set of propositions to serve as a guide for future research. We conclude with a discussion of possible limitations of the model and practical implications for managing diversity in organizations.     

Cognitive Mediators of Age-Related Differences in Language Comprehension and Verbal Memory Performance

The present study tried to specify how much processing speed, working memory capacity, and inhibition capability contribute to the effects of aging on language performance. An individual-differences approach was used to examine the component processes that predict performance in language comprehension and verbal long-term memory tasks. A total of 151 participants aged 31-80 completed language processing tasks and a battery of tasks designed to assess processing speed, working memory, and resistance to interference. Latent-construct structural equation modeling was used to examine the relationships of these factors and age to different types of language tasks. The best fit model showed first that all the significant relationships between age and language performance are mediated through reductions in speed, resistance to interference, and working memory; this confirms the validity of the general factor approach of age-related differences in cognitive performance. The best fit model, however, also showed that the contribution of speed and resistance to interference is indirect and mediated by working memory, which appears to play a crucial role in explaining age-related differences in language performance.     

Building a Self-Directed Process for the Development of Internationally Trained Professional Profiles in Canada

More and more internationally trained professionals (ITP) coming to Canada face challenges in getting credentials recognized by regulatory bodies and employers (Forum of Labour Market Ministers 2009; Ontario Office of the Fairness Commissioner 2011b). This leads to a high level of brain waste that recently has been estimated to cost Canada up to $3.4 billion per year (Evans, CGA Magazine 45(4): 26, 2011). This paper looks at some of the challenges regarding prior learning assessments and portfolio-building processes toward credential evaluation, and explains some of the reasons why the current system and tools are not meeting the needs of ITPs. In particular, postsecondary institutions and regulatory bodies’ processes toward preparing individuals for evaluation are compared, leading to a number of conclusions on commonality and future directions. The authors conclude with the proposal of a new generic online and modular professional profile model to better prepare ITPs for credential assessment. Such a model would be particularly useful for credentialing bodies with fewer resources available. It would also provide a common set of information to front-line agencies that support ITPs.     

Anxiety,Sophistication, and Resistance to Persuasion: Evidence from a Quasi‐Experimental Survey on Global Climate Change

Our contribution deals with the emotional and cognitive foundations of resistance to persuasive information. We rely on an original quasi‐experimental protocol that simulates the flow of information and the respondents' reactions to persuasive arguments on global climate change. Respondents in a representative sample (N = 604) were asked if they supported reduction of economic activity to reduce climate warming and were then provided, based on their support or disapproval for this first argument, with counterattitudinal arguments to test their resistance to persuasion. This article highlights that sophistication strengthens resistance to persuasion, whereas anxiety has a double effect: directly, it decreases resistance; indirectly, it interacts with political sophistication and makes sophisticates less likely to resist persuasion when facing arguments inconsistent with their previous beliefs. Nonanxious citizens, in turn, are more likely to resist persuasion when their political sophistication increases. We also provide evidence that the joint effect of anxiety and sophistication is moderated by the ideological identification of respondents.     

It just felt right: The neural correlates of the fluency heuristic

Simple heuristics exploit basic human abilities, such as recognition memory, to make decisions based on sparse information. Based on the relative speed of recognizing two objects, the fluency heuristic infers that the one recognized more quickly has the higher value with respect to the criterion of interest. Behavioral data show that reliance on retrieval fluency enables quick inferences. Our goal with the present functional magnetic resonance imaging study was to isolate fluency-heuristic-based judgments to map the use of fluency onto specific brain areas that might give a better understanding of the heuristic’s underlying processes. Activation within the claustrum for fluency heuristic decisions was found. Given that claustrum activation is thought to reflect the integration of perceptual and memory elements into a conscious gestalt, we suggest this activation correlates with the experience of fluency.     

Inferential language processes across adolescence: A test with novel idioms

Idiom comprehension relies on the ability to draw inferences from different cues in a communication situation. Adopting a developmental perspective, we investigated how this ability changes across adolescence. To this end, we designed a computerized system that allowed us to simulate a communication situation through short videos placing participants at the center of the interaction. Four groups of participants (11, 13, 15, and adult students) performed an idiomatic expression comprehension task, in which idiom familiarity was controlled. We manipulated the idioms’ transparency (vs. opacity) and presentation (supportive narrative context inducing an idiomatic interpretation of the expression vs. nonsupportive narrative context). Analyses revealed an improvement in idiom comprehension in terms of contextual inferences but they failed to reveal any significant difference in terms of semantic inferences. This study yields fresh arguments in support of the notion that inferential ability based on context continues to develop beyond childhood.     

Cognitive adaptation and mental health: A motivational analysis

The present study tested a motivational model where the beneficial impact that processes of cognitive adaptation have on mental health takes place through self‐determined motivation. The model proposes that the components of cognitive adaptation theory (positive self‐perceptions, perceptions of control, and optimism) foster a self‐determined motivation. In turn, self‐determined motivation predicts positive indices of mental health. In addition, the model posits that the beneficial role of cognitive adaptation on mental health is mediated by motivational processes. The model was tested using a 1‐year prospective design with a random sample from the general population. Results from structural equation modelling analysis provided empirical support for the proposed model. Results are discussed with regards to Taylor's ( 1983 ) cognitive adaptation theory, self‐determination theory (Deci & Ryan, 1991 ), and the Hierarchical Model of Intrinsic and Extrinsic Motivation (Vallerand, 1997 ). Copyright © 2004 John Wiley & Sons, Ltd.     

How many exemplars are used? Explorations with the Rex Leopold I model

The goal of this research is to test the hypothesis that a category is not necessarily represented by all observed exemplars, but by a reduced subset of these exemplars. To test this hypothesis, we made use of a study reported by Nosofsky, Clark, and Shin (1989), and replicated their Experiment 1 in order to gather individual-participant data. Both a full exemplar model and a reduced exemplar model were fit to the data. In general, the fits of the reduced exemplar model were superior to those of the full exemplar model. The results suggest that only a subset of exemplars may be sufficient for category representation.