Stroop interference: An input and an output phenomenon

Three theories of Stroop interference are considered: perceptual conflict theory (Hock and Egeth, 1970), response competition theory (Morton, 1969) and conceptual encoding theory (Seymour, 1977). The first two fail to provide a full explanation of the available data, and Seymour's evidence is incomplete. Two experiments are reported. In the first, typical Stroop interference occurs in naming colour patches. In the second, subjects responded to colour patches with learned letter name responses. Both stimulus-related (incongruent colour names) and response-related (incongruent letters) distractors produced interference. These results indicate that any theory which assumes only a single locus for interference is incomplete. Conceptual encoding conflict and a modified form of response competition are suggested as possible dual mechanisms for Stroop interference effects.     

Why manifold substantivalism is probably not a consequence of classical mechanics

This paper develops and defends three related forms of relationism about spacetime against attacks by contemporary substantivalists. It clarifies Newton's globes argument to show that it does not bear on relations that fail to determine geodesic motions, since the inertial effects on which Newton relies are not simply correlated with affine structure, but must be understood in dynamical terms. It develops remarks by Sklar and van Fraassen into relational versions of Newtonian mechanics, and argues that Earman does not show them to trivialize the debate.     

Developing algorithms to enhance the sensitivity of cancellation tests of visuospatial neglect

We describe a set of algorithms that enhance the sensitivity of cancellation tests used in assessing visuospatial neglect. The algorithms can be readily implemented on a computer and can provide temporal and nontemporal data on strategies used during cancellation. We also present preliminary results from a group of 68 right-hemisphere brain-damaged patients and 12 age-matched control participants, which demonstrate the clinical significance of the measures we have defined.     

DOUGHNUTS AND DICKIE

In this paper, I assess Dickie's institutional theory of art. I compare the earlier and later forms of the theory, and I point to various problems of detail with these accounts. I then proceed by arguing that Dickie's definition excludes Krispy Kreme doughnut boxes from possessing the status of being works of art, and it excludes those who made them from possessing the status of being artists. The intention is not to offer a counter example to Dickie's account. Rather, the complaint is that there could be no philosophical point or interest in a concept of art which excludes these doughnut boxes. The best way to see this is by contrast with a concept of art that includes them. Thus I outline what I call a ‘creative’ account. What we want is a concept of art which helps us understand a certain phenomenon in the world – the phenomenon that we call ‘art’. In this light, I argue that Dickie's institutional theory tells us nothing about why people want to make art and nothing about why they want to experience it. By contrast, the creative theory, which embraces both doughnut boxes and things in galleries, is more explanatory.     

Peer group processes and adolescent health-related behaviour: More than ‘peer group pressure’?

This paper argues that ‘peer group pressure’ conveys an individualistic and hence inadequate account of the group processes involved in adolescents' adoption of health-related behaviours such as smoking and drinking. We describe traditional analyses of adolescent peer processes, illustrate how these contain a series of individualistic assumptions about peer interactions/social influence processes, and describe how these structure the analysis of adolescent health-related behaviour and health education interventions. We highlight the inadequacies of these analyses, outline an alternative and draw out its implications for health education.     

Won't you be my neighbor? Local community identification predicted decreased stress over the first year of the COVID-19 pandemic

Social identities are an important resource, especially during times of crisis. They provide shared meaning, as well as access to social and instrumental support. The COVID-19 pandemic, although global in nature, was experienced very locally; many people stopped traveling and were often confined to their homes and neighborhoods. We reasoned this would make American residents' local community identities especially important. We collected data at five time points between April 2020 and March 2021 and measured American adults' social identification with their local community, identification with a self-nominated important group, and stress. We found that stress decreased over the first few months of the pandemic, then leveled out. Importantly, this decrease was more pronounced among people who strongly identified with their local communities. Furthermore, community identities were stronger predictors of stress decreases than social groups that respondents themselves nominated as highly important to them (e.g., family, friends). These results held controlling for age, gender, political conservatism, and other variables. This research provides important insights into the importance of social identities, and specifically local communities, during times of crisis.     

The effects of protective helmet use on physiology and cognition in young cricketers

Many studies have reported physiological and cognitive decrements following heat stress. Of particular concern in cricket are the possible negative effects of sustained protective helmet use, as this leads to an increase in heat‐related stress. Correct and rapid decision making, and focused attention are essential for efficient performance whilst batting, and it is possible that helmet usage could impair such processes. In a repeated‐measures, randomized crossover study, physiological, self‐report, and cognitive measures were taken from 16 teenage cricketers before and after moderately intense (batting) exercise. Participants underwent the assessments twice, once while wearing a standard protective helmet, and again, when not wearing a helmet (counterbalanced). While helmet use did not lead to significant physiological changes, wearing a helmet led to some cognitive impairments in attention, vigilance and reaction times. These preliminary findings could have significance for cognitively demanding sports (and perhaps military and industrial settings) in which participants perform cognitively demanding operations under conditions of physical exercise whilst wearing protective helmets. Additional factors of hydration, exercise duration, and helmet design are discussed. Copyright © 2004 John Wiley & Sons, Ltd.     

The influence of attention on value integration

People often have to make decisions based on many pieces of information. Previous work has found that people are able to integrate values presented in a rapid serial visual presentation (RSVP) stream to make informed judgements on the overall stream value (Tsetsos et al. Proceedings of the National Academy of Sciences of the United States of America, 109(24), 9659–9664, 2012). It is also well known that attentional mechanisms influence how people process information. However, it is unknown how attentional factors impact value judgements of integrated material. The current study is the first of its kind to investigate whether value judgements are influenced by attentional processes when assimilating information. Experiments 1–3 examined whether the attentional salience of an item within an RSVP stream affected judgements of overall stream value. The results showed that the presence of an irrelevant high or low value salient item biased people to judge the stream as having a higher or lower overall mean value, respectively. Experiments 4–7 directly tested Tsetsos et al.’s (Proceedings of the National Academy of Sciences of the United States of America, 109(24), 9659–9664, 2012) theory examining whether extreme values in an RSVP stream become over-weighted, thereby capturing attention more than other values in the stream. The results showed that the presence of both a high (Experiments 4, 6 and 7) and a low (Experiment 5) value outlier captures attention leading to less accurate report of subsequent items in the stream. Taken together, the results showed that valuations can be influenced by attentional processes, and can lead to less accurate subjective judgements.     

Folk theory of social change

People have a folk theory of social change (FTSC). A typical Western FTSC stipulates that as a society becomes more industrialized, it undergoes a natural course of social change, in which a communal society marked by communal relationships becomes a qualitatively different, agentic society where market‐based exchange relationships prevail. People use this folk theory to predict a society's future and estimate its past, to understand contemporary cross‐cultural differences, and to make decisions about social policies. Nonetheless, the FTSC is not particularly consistent with the existing cross‐cultural research on industrialization and cultural differences, and needs to be examined carefully.