Measuring individual and cultural differences in implicit trait theories

A new measure of implicit theories or beliefs regarding the traitedness versus contextuality of behavior was developed and tested across cultures. In Studies 1 (N = 266) and 2 (N = 266), these implicit beliefs dimensions were reliably measured and replicated across U.S. college student samples and validity evidence was provided. In Study 3, their structure replicated well across an individualistic culture (the United States; N = 249) and a collectivistic culture (Mexico; N = 268). Implicit trait and contextual beliefs overlapped only modestly with implicit entity theory beliefs and were predicted by self-construals in ways that generally supported cultural psychology hypotheses. Implicit trait beliefs were fairly strongly endorsed in both cultures, suggesting that such beliefs may be universally held.     

Proposal of a common terminology for the neuropsychological rehabilitation

The literature on neuropsychological intervention (NI) uses a variety of terms to refer to equivalent constructs, making it difficult to compare intervention programmes and their outcomes. The purpose of this work is to propose a unified terminological framework for describing NI programmes. The terminological framework was developed based on a previous proposal for common terminology by Johnstone and Stonnington (Rehabilitation of neuropsychological disorders: A practical guide for rehabilitation professionals. Psychology Press, 2011) and driven by Cognitive Psychology concepts. The terminological framework was organized into two sections: (a) NI, which includes types of NI, methods and approaches, instructional methods, and strategies; and (b) neurocognitive functions, which include temporal and spatial orientation, sensation, perception, visuo-constructional abilities, attention, memory, language, reasoning of several sorts (e.g., abstract reasoning, and numerical reasoning), and executive functions. Most NI tasks target a main neurocognitive function, but there are underlying neurocognitive functions that may impair performance in the former. Since it is difficult to create a task that is solely focused on one neurocognitive function, the proposed terminology should not be viewed as a taxonomy, but rather as dimensional, with the same task allowing to work different functions, in varying grades. Adopting this terminological framework will allow to define the targeted neurocognitive functions more accurately and simplify the comparison between NI programmes and their outcomes. Future research should focus on describing the main techniques/strategies for each neurocognitive function and non-cognitive interventions.     

A procedure for studying strategy development in humans

An early version of the computer gameStar Trek was modified to conduct behavioral research. By appropriate use of the starship’s weapon and defense systems, the player can kill enemy ships and avoid destruction. The player’s moves, as well as the time and state of the game environment when each move occurs, are recorded. The procedure tracks performance changes over time very well, and allows the dissection of performance into sequences of commands that reflect the subject’s play strategy. Computer games such asStar Trek could be the basis for experiments that bridge the gap between operant and cognitive research.     

Influence of the specific immune response on some consistent murine behaviors.

The author's goal was to discover if the generation and maintenance of the specific immune response resulted in alterations of reliable behaviors (i.e., behaviors correlated over time). The behaviors (ambulation, rearing, and interaction with a conspecific) of CD1 male mice were measured in a small open field, and several days later, the mice were immunized with antigens (either splenocytes from C57BL/6 mice or a mixture of sheep erythrocytes and goat serum). The same behaviors were recorded again some hours, or some days, after immunization. Immunizations and behavioral measurements were repeated at various intervals. Blood levels of antibodies to the antigens were measured 6 days after immunization. The recorded behaviors were consistent (according to Kendall coefficient of concordance). The mice mounted antibody responses to the antigens, yet no behavioral changes were apparent during the response. On the contrary, a single injection of E. coli lipopolysaccharide decreased ambulation and rearing. It is proposed that in healthy mice kept in normal conditions, the specific immune response may be unrelated to reliable behavioral changes.     

A Note on Finiteness in the Predicative Foundations of Arithmetic

Recently, Feferman and Hellman (and Aczel) showed how to establish the existence and categoricity of a natural number system by predicative means given the primitive notion of a finite set of individuals and given also a suitable pairing function operating on individuals. This short paper shows that this existence and categoricity result does not rely (even indirectly) on finite-set induction, thereby sustaining Feferman and Hellman's point in favor of the view that natural number induction can be derived from a very weak fragment of finite-set theory, so weak that finite-set induction is not assumed. Many basic features of finiteness fail to hold in these weak fragments, conspicuously the principle that finite sets are in one-one correspondence with a proper initial segments of a (any) natural number structure. In the last part of the paper, we propose two prima facie evident principles for finite sets that, when added to these fragments, entail this principle.     

Greens or space invaders: Prominent utopian themes and effects on social change motivation

One way in which individuals can participate in action to change the society they live in is through the pursuit of an ideal society or “utopia”; however, the content of that utopia is a likely determinant of its motivational impact. Here we examined two predominant prototypes of utopia derived from previous research and theory—the Green and Sci-Fi utopias. When participants were primed with either of these utopias, the Green utopia was perceived to entail a range of other positive characteristics (e.g., warmth, positive emotions) and—provided it was positively evaluated—tended to elicit both motivation and behaviour for social change. In contrast, the Sci-Fi utopia was associated with low motivation, even when it was positively evaluated. Furthermore, the Green utopia was shown to elicit greater perceptions of participative efficacy, which in turn predicted the increase in social change motivation.     

Hoops and Barns: a new dilemma for Sosa

Synthese - This paper critically assesses Sosa’s normative framework for performances as well as its application to epistemology. We first develop a problem for one of Sosa’s central...     

Individual differences in echocardiography: Visual object recognition ability predicts cue utilization

Echocardiographers are highly specialised, skilled practitioners who play a critical role in medical imaging diagnostics. Yet, little is known about the cognitive and perceptual attributes of experts within this domain. This study was designed to examine the role of individual differences in expertise. Specifically, the contribution of a domain general visual expertise and pattern recognition, or cue utilization. Data were collected from 42 echocardiographers and 43 naïve participants. All of the participants competed the Novel Object Memory Test (NOMT). When compared, the echocardiographers were more accurate than the naïve participants. The echocardiographers also completed an echocardiography edition of the Expert Intensive Skills Evaluation 2.0, to establish behavioral indicators of context-related cue utilization. Those with relatively higher cue utilization performed more accurately on the NOMT, controlling for exposure. These results suggest that a general perceptual ability contributes to echocardiography potential and a sensitivity to cue-based learning may contribute to expertise.