Differences in the oscillatory EEG dynamics of reading open class (OC) and closed class (CC) words have previously been found (Bastiaansen et al., 2005) and are thought to reflect differences in lexical-semantic content between these word classes. In particu-lar, the theta-band (4-7 Hz) seems to play a prominent role in lexical-semantic retrieval. We tested whether this theta effect is robust in an older population of subjects. Additionally, we examined how the context of a word can modulate the oscillatory dynamics underly-ing retrieval for the two different classes of words. Older participants (mean age 55) read words presented in either syntactically correct sentences or in a scrambled order ("scram-bled sentence") while their EEG was recorded. We performed time-frequency analysis to examine how power varied based on the context or class of the word. We observed larger power decreases in the alpha (8-12 Hz) band between 200-700 ms for the OC compared to CC words, but this was true only for the scrambled sentence context. We did not observe differences in theta power between these conditions. Context exerted an effect on the alpha and low beta (13-18 Hz) bands between 0 and 700 ms. These results suggest that the previously observed word class effects on theta power changes in a younger participant sample do not seem to be a robust effect in this older population. Though this is an indi-rect comparison between studies, it may suggest the existence of aging effects on word retrieval dynamics for different populations. Additionally, the interaction between word class and context suggests that word retrieval mechanisms interact with sentence-level comprehension mechanisms in the alpha-band.
MULTIFILE
We review over 10 years of research at Elsevier and various Dutch academic institutions on establishing a new format for the scientific research article. Our work rests on two main theoretical principles: the concept of modular documents, consisting of content elements that can exist and be published independently and are linked by meaningful relations, and the use of semantic data standards allowing access to heterogeneous data. We discuss the application of these concepts in five different projects: a modular format for physics articles, an XML encyclopedia in pharmacology, a semantic data integration project, a modular format for computer science proceedings papers, and our current work on research articles in cell biology.
We propose a novel deception detection system based on Rapid Serial Visual Presentation (RSVP). One motivation for the new method is to present stimuli on the fringe of awareness, such that it is more difficult for deceivers to confound the deception test using countermeasures. The proposed system is able to detect identity deception (by using the first names of participants) with a 100% hit rate (at an alpha level of 0.05). To achieve this, we extended the classic Event-Related Potential (ERP) techniques (such as peak-to-peak) by applying Randomisation, a form of Monte Carlo resampling, which we used to detect deception at an individual level. In order to make the deployment of the system simple and rapid, we utilised data from three electrodes only: Fz, Cz and Pz. We then combined data from the three electrodes using Fisher's method so that each participant was assigned a single p-value, which represents the combined probability that a specific participant was being deceptive. We also present subliminal salience search as a general method to determine what participants find salient by detecting breakthrough into conscious awareness using EEG.
The primary objective of this research is to develop the new practical methodology of "Vocalising Resonance", as a development of existing methods. The approach intends to involve artists and citizens in a multi-sensory engagement with their surrounding environment, by collectively utilizing the 'physical', non-semantic voice as a tool for communication. This methodology's creation is rooted in the application of artistic research to well-formulated arguments within contemporary humanities studies. It also incorporates existing approaches for engaging with sound and voice in a multisensory and multidisciplinary manner. Musicologist, Nina Eidsheim argues that music research should not solely focus on the figure of sound, but should also delve into the materiality of sound as vibration (Eidsheim, Sensing Sound). Similarly, this research aims to explore the voice as an experience connected to the whole body and senses, rather than simply hearing. Several existing strategies offer starting points. The second objective of this research is to investigate how the proposed methodology of "Vocalising Resonance" may have a transformative impact on participants' consciousness, by increasing their exposure to diversity and facilitating their realisation that persons in the literal meaning of the word are “the speaking through - sonare + per- the masks that make up our social selves”(Scapp, A Question of Voice). Broadening the scope beyond traditional norms, the project paves the way for a more inclusive, sensorially rich understanding of performing arts, inviting a holistic approach that goes beyond typical categorisations, enhancing the immersive nature of performances. It prompts reflections on the significance of an audience to define a voice, the essence of a voice irrespective of language, and how the non-semantic use of voice serves as a powerful interdisciplinary communication tool within abstract performance contexts. This process seeks to offer a new perspective and transform our practices.
