•  23
    A resurgence of interest in inner speech as a core feature of human experience has not yet coincided with methodological progress in the empirical study of the phenomenon. The present article reports the development and psychometric validation of a novel instrument, the Varieties of Inner Speech Questionnaire , designed to assess the phenomenological properties of inner speech along dimensions of dialogicality, condensed/expanded quality, evaluative/motivational nature, and the extent to which i…Read more
  •  13
    A new spin on the Wheel of Fortune: Priming of action-authorship judgements and relation to psychosis-like experiences
    with Lee de-Wit, Charles Fernyhough, and Elizabeth Meins
    Consciousness and Cognition 17 (3): 576-586. 2008.
    The proposal that there is an illusion of conscious will has been supported by findings that priming of stimulus location in a task requiring judgements of action-authorship can enhance participants’ experience of agency. We attempted to replicate findings from the ‘Wheel of Fortune’ task [Aarts, H., Custers, R., & Wegner, D. M. . On the inference of personal authorship: enhancing experienced agency by priming effect information. Consciousness and Cognition, 14, 439–458]. We also examined partic…Read more
  •  57
    Passivity experiences in schizophrenia are thought to be due to a failure in a neurocognitive action self-monitoring system . Drawing on the assumption that inner speech is a form of action, a recent model of auditory verbal hallucinations has proposed that AVHs can be explained by a failure in the NASS. In this article, we offer an alternative application of the NASS to AVHs, with separate mechanisms creating the emotion of self-as-agent and other-as-agent. We defend the assumption that inner s…Read more
  •  2
    Bimorph deformable mirror: An appropriate wavefront corrector for retinal imaging?
    with S. Laut, H. Park, S. da HorsleyOlivier, and J. S. Werner
    The purpose of this study was to evaluate the performance of a bimorph deformable mirror from AOptix, inserted into an adaptive optics system designed for in-vivo retinal imaging at high resolution. We wanted to determine its suitability as a wavefront corrector for vision science and ophthalmological instrumentation. We presented results obtained in a closed-loop system, and compared them with previous open-loop performance measurements. Our goal was to obtain precise wavefront reconstruction w…Read more
  •  22
    More than words? Hypomanic personality traits, visual imagery and verbal thought in young adults
    with Rebecca Knowles and Georgina Rowse
    Consciousness and Cognition 21 (3): 1375-1381. 2012.
    The use of visual mental imagery has been proposed to be a risk factor for the development of bipolar disorder, due to its potential to amplify affective states. This study examined the relation between visual imagery , intrusive verbal thought, and hypomania, as assessed by self-report questionnaires, in a sample of young adults . Regression analyses found that levels of intrusive visual imagery predicted levels of hypomania, but that neither trait use of visual imagery nor intrusive verbal tho…Read more
  •  1
    Auditory verbal hallucinations: Dialoguing between the cognitive sciences and phenomenology
    with Frank Larøi, Sanneke Haan, and Andrea Raballo
    Phenomenology and the Cognitive Sciences 9 (2): 225-240. 2010.
  •  95
    Auditory verbal hallucinations: Dialoguing between the cognitive sciences and phenomenology
    with Frank Larøi, Sanneke de Haan, and Andrea Raballo
    Phenomenology and the Cognitive Sciences 9 (2): 225-240. 2010.
    Auditory verbal hallucinations (AVHs) are a highly complex and rich phenomena, and this has a number of important clinical, theoretical and methodological implications. However, until recently, this fact has not always been incorporated into the experimental designs and theoretical paradigms used by researchers within the cognitive sciences. In this paper, we will briefly outline two recent examples of phenomenologically informed approaches to the study of AVHs taken from a cognitive science per…Read more