When awareness gets in the way : reactivation aversion effects resolve the generality/specificity paradox in sensorimotor interference tasks

Interference tasks combining different distractor types usually find that between-trial adaptations (congruency sequence effects [CSEs]) do not interact with each other, suggesting that sensorimotor control is domain-specific. However, within each trial, different distractor types often do interact, suggesting that control is domain-general. The present study presents a solution to this apparent paradox. In 3 experiments, testing 130 participants in total, we (a) confirm the simultaneous presence of between-trial domain-specific (noninteracting) CSEs and within-trial “domain-general” interactions in a fully factorial hybrid prime-Simon design free of repetition or contingency confounds; (b) demonstrate that the within-trial interaction occurs with supraliminal, but not with subliminal primes; and (c) show that it is disproportionately enlarged in older adults. Our findings suggest that whereas interference (priming and Simon) effects and CSEs reflect direct sensorimotor control, the within-trial interaction does not reflect sensorimotor control but “confusion” at higher-level processing stages (reactivation aversion effect [RAE])

Cinema of poverty: Independence and simplicity in an age of abundance and complexity

Over the past 25 years of writing, producing and directing, my aspirations as a creative artist in film have shifted from a paradigm in which the scale and scope of financial and human resources shaped not only the creative intentions of a project, but the very definition of what made something ‘cinematic’, to a new paradigm in which poverty - both in terms of resources and, more philosophically, in terms of artistic expression - has become one of the defining features of my artistic aspiration and my understanding of a new cinema. This development has interacted with parallel developments in technologies of production, distribution and exhibition, of a kind and scale I never envisaged when first embarking on a career in film, and has, for me, led to a kind of creative liberation which I am only now beginning to fully understand. Traditionally, human and financial resources have been considered essential for the production of quality, creative narrative films. In this article, I shall reflect on my own practice to explore how poverty can enhance the creative engagement with the medium and lead to the development of new and innovative approaches to, amongst other things, narrative imagery and, in so doing, explore how poverty can introduce new and original approaches to cinematic story-telling

What's on your mind? Recent advances in memory detection using the concealed information test

Lie detectors can be applied in a wide variety of settings. But this advantage comes with a considerable cost: False positives. The applicability of the Concealed Information Test (CIT) is More limited, yet when it can be applied, the risk of false accusations can be set a priori at a very low level. The CIT assesses the recognition of; critical information that is known only by the examiners and the culprit, for example, the face a an accomplice. Large effects are Obtained with the CIT, whether combined with peripheral, brain, or Motor responses. We see three important challenges for the CIT. First, the false negative rate Of the CIT can be substantial, particularly under :realistic circumstantes. A possible solution Seems to restrict the CIT to highly Salient details. Second, there exist effective faking strategies. Future research will tell whether faking can be detected or even prevented (e.g., Using Overt measures). Third, recognition of critical crime detail's does not necessarily result from criminal activity. It is therefore important to properly embed the CIT in the investigative process, While taking care when drawing conclusions from the test outcome (recognition, not guilt)

The Savage Genius of Sherlock Holmes

This is the published version, made available with the permission of the publisher. Copyright 2009, Cambridge University Press.When Dr. Watson first meets Sherlock Holmes in A Study in Scarlet, the former is an itinerant medical veteran of the Second Afghan War who, sick and rootless, without “kith or kin” in England, is naturally drawn to London, “that great cesspool into which all the loungers and idlers of the empire are irreversibly drained” (6; ch. 1). Lacking emotional ties, physical strength, and purpose of any real kind, Watson seems to demonstrate the “feverish restlessness” and “blunted discouragement” that Max Nordau described as degenerative symptoms of the age. Watson's identification with urban refuse of the empire, together with his metaphor of the metropolitan landscape as cultural sewer, suggests Nordau's degenerative “feeling[s] of immanent perdition and extinction” (2) and emphasizes both the pervasiveness of modern social decay and the destructive potential of insalubrious influences that lurk within the civilized world as much as they do on its remote peripheries

The cost of space independence in P300-BCI spellers.

Background: Though non-invasive EEG-based Brain Computer Interfaces (BCI) have been researched extensively over the last two decades, most designs require control of spatial attention and/or gaze on the part of the user. Methods: In healthy adults, we compared the offline performance of a space-independent P300-based BCI for spelling words using Rapid Serial Visual Presentation (RSVP), to the well-known space-dependent Matrix P300 speller. Results: EEG classifiability with the RSVP speller was as good as with the Matrix speller. While the Matrix speller’s performance was significantly reliant on early, gaze-dependent Visual Evoked Potentials (VEPs), the RSVP speller depended only on the space-independent P300b. However, there was a cost to true spatial independence: the RSVP speller was less efficient in terms of spelling speed. Conclusions: The advantage of space independence in the RSVP speller was concomitant with a marked reduction in spelling efficiency. Nevertheless, with key improvements to the RSVP design, truly space-independent BCIs could approach efficiencies on par with the Matrix speller. With sufficiently high letter spelling rates fused with predictive language modelling, they would be viable for potential applications with patients unable to direct overt visual gaze or covert attentional focus