With the embedding of EEG (electro-encephalography) sensors in wireless headsets and other consumer electronics, authenticating users based on their brainwave signals has become a realistic possibility. We undertake an experimental study of the usability and performance of user authentication using consumer-grade EEG sensor technology. By choosing custom tasks and custom acceptance thresholds f...

We annotate individual posts following the approach in [1], [2]. Tweets are grouped by topic based on included topic hashtags. For example, tweets relating to the topic of president Barack Obama contain the hashtag #obama within them. The topic-related tweets often contain other hashtags which we assign a preliminary sentiment probability (positive and negative) using the Multinomial Naive Baye...

Building on intergroup emotion research, we test the idea that intergroup emotion influences self-categorization. We report two studies using minimal (Study 1) and natural (Study 2) groups in which we measured participants' emotional reactions to a group-relevant event before manipulating the emotional reactions of other ingroup members and outgroup members (anger vs. happiness in Study 1; ange...

The urbanization of landscapes filters bird communities to favor particular species traits, driven in part by the changes that homeowners make amount and quality habitat yards. We suggest an ultimate driver these proximate mechanisms underlying community change with respect is likeability traits urban residents. hypothesize likeability, modulated influences degree which alter availability on th...

A theoretical analysis of the energy metabolism associated with the conversion of glucose to fat is presented. In tissues where the pentose cycle furnishes some of the NADPH required for fatty acid synthesis, this conversion is an ATP-yielding process. In rat adipose tissue the maximal rate of glucose conversion to fat can be quantatively predicted on the basis of the tissue's ability to use th...

The human visual system contains a hierarchical sequence of modules that take part in visual perception at different levels of abstraction, i.e., superordinate, basic, and subordinate levels. One important question is to identify the “entry” level at which the visual representation is commenced in the process of object recognition. For a long time, it was believed that the basic level had advan...

This paper, based on discourse analysis of policy documents, departs from a critique of the juxtaposition of the terms “serious” and “organised” in policies against organised crime in the UK. The conceptualisation of organised crime as national security threat supports our hypothesis that a similar critique can be applied to the emerging narrative of cyber-organised crime in the country. We arg...

The neurocognitive structure of the acting self has recently been widely studied, yet is still perplexing and remains an often confounded issue in cognitive neuroscience, psychopathology and philosophy. We provide a new systematic account of two of its main features, the sense of agency and the sense of ownership, demonstrating that although both features appear as phenomenally uniform, they ea...

OBJECTIVES We examined whether stress related to negative body image perception and the desire to lose weight explained some of the body mass index-health gradient. METHODS We used 2003 Behavioral Risk Factor Surveillance System data to examine the impact of desired body weight, independent of actual body mass index, on the amount of physically and mentally unhealthy days by race, ethnicity, ...