Browsing by Author "Elliott, Mark"
Now showing items 1-20 of 54
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Atypical behavioural effects of lorazepam: Clues to the design of novel therapies?
Elliott, Mark (Elsevier, 2010-04)Aside from their pharmacokinetic properties, e.g. their speed of action and the duration of residual effects, benzodiazepines are still considered as equivalent in terms of their effects on cognition. Here we review evidence ... -
Bandpass characteristics of high-frequency sensitivity and visual experience in blindsight
Elliott, Mark (Elsevier, 2010-03)Patient RP suffers a unilateral right homonymous quadrant anopia but demonstrates better than chance discrimination for stimuli presented in the blind field at temporal frequencies between 33 and 47 Hz (all significant at ... -
Basic aesthetic features and their influence on attention and performance
Mulcahy, Paul (2015-01-23)Within experimental aesthetics it is often claimed that artists can exploit the normal activity of the perceptual system in order to achieve aesthetic effect. This thesis extends such a proposal by providing evidence to ... -
Beings in the moment
Elliott, Mark (Cambridge University Press (CUP), 2019-12-12)Hoerl & McCormack's theory defines temporal behavior from an awareness of time, but lacks one critical element: the impact of "psychological presence" in the "moment now." Central to experience of temporal non-stationarity: ... -
Can we explain cross-modal representation with neural algorithms alone?: Commentary on Paillard
Elliott, Mark (North-Holland, 1999)Recent research in both psychophysics and electrophysiology has revealed a number of examples in which behaviour is guided by (i.e. Spence & Driver, 1996), and brain activity has been argued to correlate with, the formation ... -
Closure of salient regions determines search for a collinear target configuration
Elliott, Mark (Psychonomic Society, 2007-01)Grouping operations offer an effective mechanism by which to structure complex visual scenes. Among the various principles that support element integration, closure may be regarded as a main factor in shape extraction. In ... -
Cognitive load and working memory capacity; within and between modality
Coleman, Liam (NUI Galway, 2018-10)Perceptual load and cognitive load have been assessed in the same method. However, it is proposed they have self-regulating and contradictory effects on the use of attentional resources. The difficulty of distinguishing ... -
Comparing temporal event-coding in patients with first episode psychosis and chronic schizophrenia
Schmidt, Heike; McFarland, John; McDonald, Colm; Elliott, Mark (Elsevier, 2008-06)Cognitive impairments are a core feature of schizophrenia. It has been suggested that the underlying cause of the cognitive deficits in schizophrenia is an impaired ability to sequence mental activity in time. Various ... -
The computation of shape orientation in search for Kanizsa figures
Elliott, Mark (Pion Ltd, 2009-01-29)Previous studies of visual search for illusory figures have provided equivocal results, with efficient search for Kanizsa squares (eg Davis and Driver, 1994 Nature 371 291-293) contrasting with inefficient search for Kanizsa ... -
The contrasting impact of global and local object attributes on Kanizsa figure detection
Elliott, Mark (Psychonomic Society, 2007-11)Studies on the involvement of object completions in search for illusory figures have so far reported equivocal results. We have addressed this issue by investigating at which level object attributes in Kanizsa figures ... -
Defining perceptual synchrony
Elliott, Mark (Kijima Printing Co., 2007)How does neuronal activity bring about the interpretation of visual space in terms of objects or complex perceptual events? If they group, simple visual features can bring about the integration of spikes from neurons ... -
Dynamic Protention: the architecture of real-time cognition for future events
Elliott, Mark; Coleman, Liam (Springer, Cham, 2019)For over thirty years now a body of physiological evidence has been acquired which indicates that cognitive operations coordinate via the phase synchronization of neuronal firing. While usually ascribed to ‘binding’, i.e. ... -
The dynamics of operations in visual memory: A review and new evidence for oscillatory priming
Elliott, Mark (Hogrefe & Huber, 2004-10)Evidence from neurophysiological studies indicates that the synchronization of distributed neuronal assemblies in the gamma frequency range is responsible for the integration of discrete stimulus components into coherent ... -
Dynamics of perceptual grouping: similarities between the organization of visual and auditory groups
Elliott, Mark (Taylor & Francis, 2001-06)In vision, the Gestalt principles of perceptual organization are generally well understood and remain a subject of detailed analysis. However, the possibility for a unified theory of grouping across visual and auditory ... -
The dynamics of visual experience, an EEG Study of subjective pattern formation
Elliott, Mark; Glennon, Mark (Public Library of Science, 2012-01-06)Background: Since the origin of psychological science a number of studies have reported visual pattern formation in the absence of either physiological stimulation or direct visual-spatial references. Subjective patterns ... -
Effects of stimulus synchrony on mechanisms of perceptual organization
Elliott, Mark (Taylor & Francis, 2001-06-05)When neurons adopt a synchronized, oscillatory response to stimulus Gestalten, the phase of those oscillations almost always varies relative to stimulus activity. This has been taken to indicate that form-coding mechanisms ... -
The effects of subthreshold synchrony on the perception of simultaneity
Elliott, Mark (Springer, 2007)We aimed to examine the effects of subthreshold synchrony and asynchrony on the perception of simultaneity. We rendered simultaneous or asynchronous luminance changes below detection thresholds by embedding them in a ... -
The effects of subthreshold synchrony on the perception of simultaneity.
Elliott, Mark (Springer, 2007)We aimed to examine the effects of subthreshold synchrony and asynchrony on the perception of simultaneity. We rendered simultaneous or asynchronous luminance changes below detection thresholds by embedding them in a ... -
Electrophysiological correlates of flicker-induced color hallucinations
Elliott, Mark (Elsevier, 2009-03)In a recent study, Becker and Elliott [Becker, C., & Elliott, M. A. (2006). Flicker induced color and form: Interdependencies and relation to stimulation frequency and phase. Consciousness & Cognition, 15(1), 175-196] ... -
Electrophysiological correlates of flicker-induced form hallucinations
Twomey, Deirdre; Glennon, Mark; Elliott, Mark (The International Society for Psychophysics, 2010-10)Form hallucinations can be reliably induced using temporally modulated light within a specific frequency range (15-30Hz). The neural substrates of such states have yet to be established with certainty. Brain activity of 5 ...