T J Crawford
Affiliation: Lancaster University
- Distinguishing between impairments of working memory and inhibitory control in cases of early dementiaTrevor J Crawford
Centre for Aging Research, Eye Tracking and Dementia Research Laboratory, Department of Psychology, Lancaster University, Lancaster LA1 4YF, UK Electronic address
Neuropsychologia 81:61-7. 2016..These findings yield converging evidence that working memory and inhibitory control are distinct cognitive operations and challenges the Kimberg and Farah (2000) cognitive model of working memory. ..
- The role of working memory and attentional disengagement on inhibitory control: effects of aging and Alzheimer's diseaseTrevor J Crawford
Department of Psychology, Centre for Human Learning and Development, Centre for Aging Research, Lancaster University, Lancaster, LA1 4YF, UK
Age (Dordr) 35:1637-50. 2013..These results suggest that the impairment of inhibitory control in the AST may provide a convenient and putative mark of working memory dysfunction in Alzheimer's disease. ..
- Is the relationship of prosaccade reaction times and antisaccade errors mediated by working memory?Trevor J Crawford
The Mental Health Research and Neural Unit, Department of Psychology, Lancaster University, Lancaster LA14YF, UK
Exp Brain Res 208:385-97. 2011..These data suggest that antisaccade errors are directly related to the speed of saccadic programming. These findings are discussed in terms of a race competition model of antisaccade control...
- The perception of real and illusory motion in schizophreniaT J Crawford
Department of Psychology, Lancaster University, Mental Health and Neural Systems, Lancaster LA1 4YF, United Kingdom
Neuropsychologia 48:3121-7. 2010..The findings revealed that people with schizophrenia may be less easily deceived by illusory motion in comparison to healthy participants...
- The effects of illusory line motion on incongruent saccades: implications for saccadic eye movements and visual attentionT J Crawford
Department of Psychology, Mental Health and Neural Systems Research Unit, Lancaster University, Lancaster, UK
Exp Brain Res 173:498-506. 2006..These findings demonstrate that an illusory phenomenon can accelerate the processing of an incongruent relative to a congruent saccade...
- The inhibitory effect of a recent distracterTrevor J Crawford
Mental Health and Neural Systems Research Unit, Department of Psychology, Lancaster University, UK
Vision Res 45:3365-78. 2005..These results distinguished between inhibition of a recent distracter and 'inhibition-of-return' and are consistent with models of competitive interactions which generate inhibitory effects on the spatial representation of a distracter...
- Inhibitory control of saccadic eye movements and cognitive impairment in Alzheimer's diseaseTrevor J Crawford
Mental Health and Neural Systems Research Unit, Lancaster University, Lancaster, United Kingdom
Biol Psychiatry 57:1052-60. 2005..related to cognitive measures of impairment? 3) Is the inhibitory impairment in AD dependent on the initiation of a volitional eye movement? 4) How do the effects of saccadic inhibitory control in AD relate to the normal effects of aging?..
- Saccadic eye movements in families multiply affected with schizophrenia: the Maudsley Family StudyT J Crawford
Department of Psychology, Lancaster University, United Kingdom
Am J Psychiatry 155:1703-10. 1998..More recently, an inability of schizophrenic subjects to inhibit reflexive saccades reliably has been shown. This study aimed to test the hypothesis that the latter dysfunction is part of the extended schizophrenia phenotype...
- Dyslexia and the centre-of-gravity effectT J Crawford
Mental Health and Neural Systems Research Unit, Department of Psychology, Lancaster University, Lancaster LA1 4YF, UK
Exp Brain Res 137:122-6. 2001..These findings suggest that dyslexia is associated with a deficit in the processing of global spatial information for the control of saccadic eye movements...
- Cognition and the inhibitory control of saccades in schizophrenia and Parkinson's diseaseT J Crawford
Mental Health and Neural Systems Research Unit, Department of Psychology, Lancaster University, Lancaster, LA1 4YF, UK
Prog Brain Res 140:449-66. 2002..We conclude that the inhibitory control of saccadic eye movement should be studied in the wider context of cognitive operations...
- The relationship between antisaccades, smooth pursuit, and executive dysfunction in first-episode schizophreniaSamuel B Hutton
Department of Psychology, University of Sussex, Brighton, UK
Biol Psychiatry 56:553-9. 2004....
- Lack of association between prepulse inhibition and antisaccadic deficits in chronic schizophrenia: implications for identification of schizophrenia endophenotypesVeena Kumari
Department of Psychology, Institute of Psychiatry, De Crespigny Park, London SE5 8AF, UK
J Psychiatr Res 39:227-40. 2005..It is concluded that PPI and antisaccade abnormalities in schizophrenia represent separate endophenotypes, reflecting the functions of different genetic aetiologies and different or only partially overlapping neural systems...
- Volumetric neural correlates of antisaccade eye movements in first-episode psychosisUlrich Ettinger
Department of Psychology, McGill University, Stewart Biological Sciences Building, 1205 Dr Penfield Ave, Montreal, Quebec H3A 1B1 Canada
Am J Psychiatry 161:1918-21. 2004..The authors investigated the structural brain correlates of antisaccade performance...
- Effects of procyclidine on eye movements in schizophreniaUlrich Ettinger
Division of Psychological Medicine, Institute of Psychiatry, UK
Neuropsychopharmacology 28:2199-208. 2003..Effects of order of administration and practice on the antisaccade task suggest that these factors need to be taken into consideration in future pharmacological studies...
- Antisaccade performance in monozygotic twins discordant for schizophrenia: the Maudsley twin studyUlrich Ettinger
Centre for Neuroimaging Sciences, Institute of Psychiatry, King s College London, London SE5 8AF, UK
Am J Psychiatry 163:543-5. 2006..Deficiency in antisaccade performance has been proposed as a schizophrenia endophenotype...
- Reliability of smooth pursuit, fixation, and saccadic eye movementsUlrich Ettinger
Section of Cognitive Psychopharmacology, Division of Psychological Medicine, Institute of Psychiatry, University of London, UK
Psychophysiology 40:620-8. 2003..These findings support the trait nature of oculomotor function and point to the need to take into consideration between-session practice effects on the antisaccade task in longitudinal studies...
- Smooth pursuit and antisaccade eye movements in siblings discordant for schizophreniaUlrich Ettinger
Division of Psychological Medicine, Institute of Psychiatry, UK
J Psychiatr Res 38:177-84. 2004..It is concluded that subtle SPEM and antisaccade deficits are observed in clinically unaffected siblings of schizophrenia patients; these deficits may be useful markers of genetic liability to schizophrenia...
- Relationship between brain structure and saccadic eye movements in healthy humansUlrich Ettinger
Section of Cognitive Psychopharmacology, Division of Psychological Medicine, Institute of Psychiatry, London, UK
Neurosci Lett 328:225-8. 2002..These findings agree with previous studies on the role of the cerebellar vermis in saccadic gain and support the validity of structural neuroimaging methods in elucidating the neural correlates of saccadic eye movements...
- Saccadic eye movements, schizotypy, and the role of neuroticismUlrich Ettinger
Department of Psychology, McGill University, Stewart Biological Sciences Building, 1205 Dr Penfield Ave, Montreal, Que, Canada H3A 1B1
Biol Psychol 68:61-78. 2005..We conclude that saccadic performance patterns in schizotypy are not due to negative emotionality or general psychopathology, but specific to schizophrenia spectrum signs and symptoms...
- Structural neural correlates of prosaccade and antisaccade eye movements in healthy humansUlrich Ettinger
Division of Psychological Medicine, Institute of Psychiatry, London, UK
Neuroimage 24:487-94. 2005....