Research Topics
Species | V KumariSummaryAffiliation: King's College London Country: UK Publications
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Publications
Association between a longer duration of illness, age and lower frontal lobe grey matter volume in schizophreniaPreethi Premkumar
Department of Psychology, Institute of Psychiatry, De Crespigny Park, King s College London, London SE5 8AF, United Kingdom
Behav Brain Res 193:132-9. 2008..The effect of illness chronicity on GM volume in the left dorsomedial PFC may be extended to brain structure-neuropsychological function relationships...
Structural magnetic resonance imaging predictors of responsiveness to cognitive behaviour therapy in psychosisPreethi Premkumar
Department of Psychology, Institute of Psychiatry, King s College London, London, UK
Schizophr Res 115:146-55. 2009..This study aimed to determine whether improvement in symptoms following CBT for psychosis (CBTp) in people with schizophrenia is positively associated with pre-therapy grey matter volume in brain regions involved in cognitive processing...
Neurological basis of poor insight in psychosis: a voxel-based MRI studyMichael A Cooke
Department of Psychology, Institute of Psychiatry, King s College London, London, UK
Schizophr Res 103:40-51. 2008..As a reflection of poor insight, people with schizophrenia often disagree with carers and clinicians about whether (a) their experiences are abnormal, (b) they are mentally ill, and (c) they need treatment...
Insight, distress and coping styles in schizophreniaMichael Cooke
Department of Psychology, Institute of Psychiatry, King s College London, London, UK
Schizophr Res 94:12-22. 2007..There is evidence that poor insight into symptoms of the disorder and need for treatment may reflect the use of denial as a coping style. However, the relationships between insight and other coping styles have seldom been investigated...
Cognitive insight in psychosis: the relationship between self-certainty and self-reflection dimensions and neuropsychological measuresMichael A Cooke
Department of Psychology, Institute of Psychiatry, King s College London, London, UK
Psychiatry Res 178:284-9. 2010..The self-certainty and self-reflection dimensions of cognitive insight have differential correlates, and probably different mechanisms, in psychosis...
Personality predicts brain responses to cognitive demandsVeena Kumari
Department of Psychology, Institute of Psychiatry, King s College London, De Crespigny Park, London SE5 8AF, United Kingdom
J Neurosci 24:10636-41. 2004..These observations suggest that individual differences affect brain responses during cognitive activity and at rest and provide evidence for the hypothesized neurobiological basis of personality...
Evidence for a role of progesterone in menstrual cycle-related variability in prepulse inhibition in healthy young womenVeena Kumari
Department of Psychology, Institute of Psychiatry, King s College London, London, UK
Neuropsychopharmacology 35:929-37. 2010....
Uncontrollable voices and their relationship to gating deficits in schizophreniaVeena Kumari
Department of Psychology, Institute of Psychiatry, King s College London, London, UK
Schizophr Res 101:185-94. 2008..The aim of this study was to investigate PPI deficit in relation to the dimensions of auditory hallucinations in patients with schizophrenia or schizoaffective disorder...
Dorsolateral prefrontal cortex activity predicts responsiveness to cognitive-behavioral therapy in schizophreniaVeena Kumari
Department of Psychology, Institute of Psychiatry, King s College London, United Kingdom
Biol Psychiatry 66:594-602. 2009....
Use of magnetic resonance imaging in tracking the course and treatment of schizophreniaVeena Kumari
King s College London, Institute of Psychiatry Department of Psychology, PO78, London, SE5 8AF, UK
Expert Rev Neurother 6:1005-16. 2006..Understanding the trait- and state-related influences of brain abnormalities during the course of the illness is critical for developing effective treatment and possibly prevention strategies in schizophrenia...
Dysfunctional, but not functional, impulsivity is associated with a history of seriously violent behaviour and reduced orbitofrontal and hippocampal volumes in schizophreniaVeena Kumari
Department of Psychology, Institute of Psychiatry, King s College London, London, UK
Psychiatry Res 173:39-44. 2009..Violence risk prediction and management strategies in schizophrenia may benefit from including specific measures of dysfunctional impulsive traits...
Sex differences in prepulse inhibition deficits in chronic schizophreniaVeena Kumari
Department of Psychology Institute of Psychiatry, De Crespigny Park, London SE5 8AF, UK
Schizophr Res 69:219-35. 2004..Future studies of schizophrenia patients need to take sex and age of subjects into account to optimise the investigation of PPI deficits, and their clinical, neural, and pharmacological correlates...
Nicotine use in schizophrenia: the self medication hypothesesVeena Kumari
Department of Psychology, Institute of Psychiatry, London SE5 8AF, UK
Neurosci Biobehav Rev 29:1021-34. 2005....
Structural brain correlates of prepulse inhibition of the acoustic startle response in healthy humansVeena Kumari
Department of Psychology, PO78, Institute of Psychiatry, De Crespigny Park, London SE5 8AF, UK
Neuroimage 26:1052-8. 2005....
Startle gating in antipsychotic-naïve first episode schizophrenia patients: one ear is better than twoVeena Kumari
Department of Psychology, Institute of Psychiatry, King s College London, London, UK
Psychiatry Res 151:21-8. 2007..It is concluded that first episode schizophrenia patients show deficient sensorimotor gating but they are not impaired in the mechanism underlying stronger PPI with monaural than binaural prepulses...
Neural and behavioural responses to threat in men with a history of serious violence and schizophrenia or antisocial personality disorderVeena Kumari
Department of Psychology, Institute of Psychiatry, King s College London, London, UK
Schizophr Res 110:47-58. 2009..This study examined behavioural and brain abnormalities in violent men with schizophrenia or APD during anticipatory fear...
Functional MRI of verbal self-monitoring in schizophrenia: performance and illness-specific effectsVeena Kumari
Department of Psychology, Institute of Psychiatry, King s College London, London, UK
Schizophr Bull 36:740-55. 2010..Altered striatal and hypothalamic modulation to own and others' voice characterizes emotionally withdrawn and socially avoidant patients...
Association between violent behaviour and impaired prepulse inhibition of the startle response in antisocial personality disorder and schizophreniaVeena Kumari
Department of Psychology, PO78, Institute of Psychiatry, Kings College London, De Crespigny Park, London SE5 8AF, UK
Behav Brain Res 158:159-66. 2005..The association between violent behaviour and impaired PPI suggests that neural structures and functions underlying PPI are implicated in (inhibition of) violence...
Cortical grey matter volume and sensorimotor gating in schizophreniaVeena Kumari
Department of Psychology, Institute of Psychiatry, King s College London, London, UK
Cortex 44:1206-14. 2008....
Cognitive effects of nicotine in humans: an fMRI studyVeena Kumari
Department of Psychology, Institute of Psychiatry, King s College, London, UK
Neuroimage 19:1002-13. 2003....
A fMRI investigation of startle gating deficits in schizophrenia patients treated with typical or atypical antipsychoticsVeena Kumari
Department of Psychology, Institute of Psychiatry, King s College London, London, UK
Int J Neuropsychopharmacol 10:463-77. 2007..Imaging data buttress the validity of PPI as a useful animal model of schizophrenia...
Effects of d-amphetamine and haloperidol on latent inhibition in healthy male volunteersV Kumari
Department of Psychology, Institute of Psychiatry, London, UK
J Psychopharmacol 13:398-405. 1999..In a subsequent study, no effect was found of 2 mg oral haloperidol administration on LI. The effect of 5 mg haloperidol on LI is interpreted as similar to that observed with a high dose of haloperidol in rats...
Neural dysfunction and violence in schizophrenia: an fMRI investigationVeena Kumari
Department of Psychology, Institute of Psychiatry, King s College London, London, UK
Schizophr Res 84:144-64. 2006..It is concluded that reduced functional response in the frontal and inferior parietal regions leads to serious violence in schizophrenia perhaps via impaired executive functioning...
Enhanced startle reactions to acoustic stimuli in patients with obsessive-compulsive disorderV Kumari
Departments of Psychology and Psychiatry, Institute of Psychiatry, London, UK
Am J Psychiatry 158:134-6. 2001..The authors investigated whether patients with obsessive-compulsive disorder (OCD) show exaggerated startle reactions to acoustic probes, especially during negative-affect-toned stimuli, compared with healthy subjects...
Effects of procyclidine on prepulse inhibition of the acoustic startle response in healthy human volunteersV Kumari
Section of Cognitive Psychopharmacology, Division of Psychological Medicine Institute of Psychiatry, De Crespigny Park, London SE5 8AF, UK
Psychopharmacology (Berl) 154:221-9. 2001..No previous study has investigated the effects of anticholinergic drugs on human PPI...
Neuroticism and brain responses to anticipatory fearVeena Kumari
Department of Psychology, Institute of Psychiatry, King s College London, De Crespigny Park, London, United Kingdom
Behav Neurosci 121:643-52. 2007..The observations support recent psychophysiological research that has demonstrated reduced processing of pain in subjects with higher levels of neuroticism, especially the anxiety component of this trait...
A comparison of prepulse inhibition in pre- and postmenopausal women and age-matched menVeena Kumari
King s College London, Department of Psychology, Institute of Psychiatry, London, UK
Neuropsychopharmacology 33:2610-8. 2008..There appear to be no substantial relationships between individual differences in endogenous levels of sex hormones and PPI; fluctuations within an individual may have a stronger role...
Prepulse inhibition and "psychosis-proneness" in healthy individuals: an fMRI studyVeena Kumari
Department of Psychology, Institute of Psychiatry, King s College London, De Crespigny Park, London, UK
Eur Psychiatry 23:274-80. 2008....
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...
Neural correlates of tactile prepulse inhibition: a functional MRI study in normal and schizophrenic subjectsVeena Kumari
Section of Cognitive Psychopharmacology, Institute of Psychiatry, King s College, De Crespigny Park, London SE5 8AF, UK
Psychiatry Res 122:99-113. 2003..The findings demonstrate involvement of the striatum, hippocampus, thalamus, and frontal and parietal cortical regions in PPI. Dysfunctions in any of these regions may underlie observations of reduced PPI in schizophrenia...
Effects of acute procyclidine administration on prepulse inhibition of the startle response in schizophrenia: a double-blind, placebo-controlled studyVeena Kumari
Section of Cognitive Psychopharmacology, Division of Psychological Medicine, Institute of Psychiatry, De Crespigny Park, London, UK
J Psychopharmacol 17:89-95. 2003..The use of anticholinergics needs to be carefully controlled/examined in investigations of information processing deficits using a PPI model and reduced to the minimum level in clinical care of schizophrenia...
Reduced prepulse inhibition in unaffected siblings of schizophrenia patientsVeena Kumari
Department of Psychology, Institute of Psychiatry, King s College London, London, UK
Psychophysiology 42:588-94. 2005..High schizotypal ratings were mildly associated with reduced prepulse inhibition. Prepulse inhibition may provide a useful measure in the search for schizophrenia genes...
Neural correlates of adjunctive rivastigmine treatment to antipsychotics in schizophrenia: a randomized, placebo-controlled, double-blind fMRI studyVeena Kumari
Department of Psychology, Institute of Psychiatry, King s College London, London, UK
Neuroimage 29:545-56. 2006....
Procedural learning in schizophrenia: a functional magnetic resonance imaging investigationVeena Kumari
Section of Cognitive Psychopharmacology, Division of Psychological Medicine, Institute of Psychiatry, De Crespigny Park, Denmark Hill, London, UK
Schizophr Res 57:97-107. 2002....
Altered microstructural connectivity in juvenile myoclonic epilepsy: the missing linkC Vollmar
Department of Clinical and Experimental Epilepsy, UCL Institute of Neurology, London, UK
Neurology 78:1555-9. 2012....
A behavioural and functional neuroimaging investigation into the effects of nicotine on sensorimotor gating in healthy subjects and persons with schizophreniaPeggy Postma
Department of Psychology, P078, Institute of Psychiatry, King's College London, De Crespigny Park, London SE5 8AF, UK
Psychopharmacology (Berl) 184:589-99. 2006..CONCLUSIONS: Nicotine enhances tactile PPI in both healthy and schizophrenia groups. Our preliminary fMRI findings reveal that this effect is modulated by increased limbic activity...
Effects of single oral administrations of haloperidol and d-amphetamine on prepulse inhibition of the acoustic startle reflex in healthy male volunteersV Kumari
Section of Cognitive Psychopharmacology, University of London, UK
Behav Pharmacol 9:567-76. 1998..The implications of these findings in relation to animal pharmacological studies and observed sensorimotor gating deficits in schizophrenia are discussed...
Prepulse inhibition of the startle response in risperidone-treated patients: comparison with typical antipsychoticsVeena Kumari
Section of Cognitive Psychopharmacology, Department of Psychiatry, Institute of Psychiatry, De Crespigny Park, London SE5 8AF, UK
Schizophr Res 55:139-46. 2002....
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...
Cognitive functioning in siblings discordant for schizophreniaC Hughes
Division of Psychological Medicine, Institute of Psychiatry, London, UK
Acta Psychiatr Scand 111:185-92. 2005..This deficit appeared to be mediated by IQ. Deficits, which differentiated patients from controls, may not be inherited and perhaps are related to the manifestation or treatment of schizophrenia...
Fronto-temporal function may distinguish bipolar disorder from schizophreniaS Frangou
Section of Neurobiology of Psychosis, Institute of Psychiatry, King s Coillege London, London, UK
Bipolar Disord 8:47-55. 2006..Our objective was to compare the cognitive profile of stable BDI and schizophrenic patients using neuropsychological tasks which utilize frontal systems but differ in terms of the exact neural circuits and cognitive processes involved...
The relationship of sex hormones and cortisol with cognitive functioning in SchizophreniaR Halari
Centre for Social, Genetic and Developmental Psychiatry and Department of Psychology, City University, London, UK
J Psychopharmacol 18:366-74. 2004....
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...
Affective modulation of the startle response in depression: influence of the severity of depression, anhedonia, and anxietyH Kaviani
Department of Psychology, Institute of Psychiatry, De Crespigny Park, London SE5 8AF, UK
J Affect Disord 83:21-31. 2004..Anxiety is associated with hyperstartle responding...
Effect of acute subcutaneous nicotine on prepulse inhibition of the acoustic startle reflex in healthy male non-smokersV Kumari
Department of Psychology, University of London, UK
Psychopharmacology (Berl) 132:389-95. 1997....
Comparable cortical activation with inferior performance in women during a novel cognitive inhibition taskR Halari
Department of Social, Genetic and Developmental Psychiatry, Institute of Psychiatry, PO46, De Crespigny Park, London SE5 8AF, UK
Behav Brain Res 158:167-73. 2005..Equated behavioural performance may elicit sex differences in brain activation...
Prefrontal cortex and insight in schizophrenia: a volumetric MRI studyAdegboyega Sapara
King s College London, Institute of Psychiatry, Department of Psychology, London, UK
Schizophr Res 89:22-34. 2007..Future research should examine the association of specific dimensions of insight with frontal as well as non-frontal regional brain volumes...
Brain anatomy and sensorimotor gating in Asperger's syndromeGrainne M McAlonan
Department of Psychological Medicine, Institute of Psychiatry, London, UK
Brain 125:1594-606. 2002....
Magnetic resonance imaging of the thalamus in first-episode psychosisU Ettinger
Section of Cognitive Psychopharmacology, Division of Psychological Medicine, Institute of Psychiatry, University of London, London, UK
Am J Psychiatry 158:116-8. 2001..There were no significant correlations between thalamic volumes and symptom scores. CONCLUSIONS: Thalamic abnormalities are present close to the onset of psychosis...
Startle response during smoking and 24 h after withdrawal predicts successful smoking cessationP Postma
Department of Psychology, Institute of Psychiatry, London, UK
Psychopharmacology (Berl) 156:360-7. 2001..The present study examined individual differences in cognitive benefits obtained from smoking as indexed by startle response and PPI...
Gender differences in immediate memory in bipolar disorderD Carrus
Section of Neurobiology of Psychosis, Institute of Psychiatry, King s College London, London, UK
Psychol Med 40:1349-55. 2010..Although cognitive abnormalities are an established feature of BD, there is limited information regarding whether gender also influences the pattern and severity of cognitive impairment...
A longer duration of schizophrenic illness has sex-specific associations within the working memory neural network in schizophreniaSarah Elsabagh
King s College School of Medicine, King s College London, London, UK
Behav Brain Res 201:41-7. 2009..Additionally, brain regions that exhibit sexually dimorphic activation in healthy people may become compromised in the corresponding sex with illness progression...
Longitudinal study of symptoms and cognitive function in chronic schizophreniaCatherine Hughes
Section of Cognitive Psychopharmacology, Division of Psychological Medicine, Institute of Psychiatry, De Crespigny Park, London SE5 8AF, UK
Schizophr Res 59:137-46. 2003..The results do not suggest a causal relationship between the course of symptoms and neuropsychological functioning in chronic schizophrenia...
Neural correlates of deficient response inhibition in mentally disordered violent individualsIan Barkataki
Department of Psychology, School of HumanSciences, University of Surrey, Guildford GU2 7HX, UK
Behav Sci Law 26:51-64. 2008..In addition, caudate dysfunction may contribute, given its role in timing and temporal processing as well as suppression of motor actions, to deficient inhibition and violent behaviour in schizophrenia...
Individual differences in mood reactions to d-amphetamine: a test of three personality factorsP J Corr
Department of Psychology, Goldsmiths College, University of London, New Cross, UK
J Psychopharmacol 14:371-7. 2000..It is concluded that the routine inclusion of personality measures in future psychopharmacological studies may help to refine the characterization of drug effects...
Insight in psychosis: influence of cognitive ability and self-esteemMichael A Cooke
King s College London, Institute of Psychiatry, Department of Psychology PO77, 16 De Crespigny Park, Denmark Hill, London SE5 8AF, UK
Br J Psychiatry 191:234-7. 2007..Some studies have found a curvilinear relationship between insight and cognitive ability, but the roles of self-esteem and depression have not been taken into account...
N-acetyl aspartate concentration in the anterior cingulate cortex in patients with schizophrenia: a study of clinical and neuropsychological correlates and preliminary exploration of cognitive behaviour therapy effectsPreethi Premkumar
Department of Psychology, Institute of Psychiatry, King s College London, London, United Kingdom
Psychiatry Res 182:251-60. 2010..NAA concentration may be more closely associated with symptoms and symptom change than frontal lobe based neuropsychological function in schizophrenia, perhaps because the latter is relatively stable during the long-term illness course...
No gender differences in brain activation during the N-back task: an fMRI study in healthy individualsHeike Schmidt
Section of Neurobiology of Psychosis, Institute of Psychiatry, King s College London, United Kingdom
Hum Brain Mapp 30:3609-15. 2009....
Pilot investigation of the changes in cortical activation during facial affect recognition with lamotrigine monotherapy in bipolar disorderJigar Jogia
Section of Neurobiology of Psychosis, Institute of Psychiatry, King s College London, PO66, De Crespigny Park, London, SE5 8AF, UK
Br J Psychiatry 192:197-201. 2008..Bipolar disorder is associated with dysfunction in prefrontal and limbic areas implicated in emotional processing...
Volumetric structural brain abnormalities in men with schizophrenia or antisocial personality disorderIan Barkataki
Division of Psychological Medicine, Institute of Psychiatry, King s College London, London, UK
Behav Brain Res 169:239-47. 2006....
Neurological soft signs and their relationship to cognitive and clinical efficacy of atypical antipsychotics in schizophreniaMrigendra Das
Institute of Psychiatry, London, UK
Schizophr Bull 30:241-53. 2004..The presence of high NSS in schizophrenia patients impedes the improvement in cognitive function with atypical antipsychotics treatment...
The relationship between prepulse detection and prepulse inhibition of the acoustic startle reflexP Postma
Department of Psychology, Institute of Psychiatry, London, UK
Psychophysiology 38:377-82. 2001..However, trials on which detection occurred did not differ from trials without detection on measures of startle inhibition. This suggests that PPI is independent of awareness of the prepulse...
Differential motivational responses to food and pleasurable cues in anorexia and bulimia nervosa: a startle reflex paradigmHans Christoph Friederich
Eating Disorders Unit, Institute of Psychiatry, King s College London, London, UK
Psychol Med 36:1327-35. 2006..SEM was used because it is sensitive to motivational states of approach (appetitive response) and withdrawal (aversive response), which are independent of conscious intentional control...
Changes in brain activation during working memory and facial recognition tasks in patients with bipolar disorder with Lamotrigine monotherapyMorgan Haldane
Section of Neurobiology of Psychosis, Institute of Psychiatry, PO66 De Crespigny Park London SE5 8AF, UK
Eur Neuropsychopharmacol 18:48-54. 2008..Therefore, LTG monotherapy in BD patients may enhance cortical function within neural circuits involved in memory and emotional self-regulation...
Association of Neuregulin 1 rs3924999 genotype with antisaccades and smooth pursuit eye movementsA Schmechtig
Department of Neuroimaging, King s College Institute of Psychiatry, London, UK
Genes Brain Behav 9:621-7. 2010....
Personality factors correlate with regional cerebral perfusionR L O'Gorman
Department of Neuroimaging, Ground Floor, Ruskin Wing, King s College Hospital, Denmark Hill, London SE5 9RS, UK
Neuroimage 31:489-95. 2006..This technique also offers a novel approach for the exploration of the neurobiological correlates of human personality...
Emotional decision-making and its dissociable components in schizophrenia and schizoaffective disorder: a behavioural and MRI investigationPreethi Premkumar
Department of Psychology, Institute of Psychiatry, King s College London, De Crespigny Park, London SE5 8AF, United Kingdom
Neuropsychologia 46:2002-12. 2008....
Sex differences and individual differences in cognitive performance and their relationship to endogenous gonadal hormones and gonadotropinsRozmin Halari
Department of Psychology, City University, London, England
Behav Neurosci 119:104-17. 2005....
Effects of acute nicotine on brain function in healthy smokers and non-smokers: estimation of inter-individual response heterogeneityUlrich Ettinger
Centre for Neuroimaging Sciences, Institute of Psychiatry, King s College London, DeCrespigny Park, PO89, London SE5 8AF, UK
Neuroimage 45:549-61. 2009..The comparison of within-session ICCs across drug conditions suggests that the effects of nicotine are subject to inter-individual variability at behavioural and neural levels...
Effects of rivastigmine on sustained attention in schizophrenia: an FMRI studyIngrid Aasen
Department of Psychology, Institute of Psychiatry, De Crespigny Park, London SE5 8AF, UK
J Clin Psychopharmacol 25:311-7. 2005..Our results showed that rivastigmine treatment increased cerebellar activity and influenced attentional processes...
Evidence for deficit in tasks of ventral, but not dorsal, prefrontal executive function as an endophenotypic marker for bipolar disorderSophia Frangou
Section of Neurobiology of Psychosis, Institute of Psychiatry, London, United Kingdom
Biol Psychiatry 58:838-9. 2005..We examined whether deficits in VPFC-related inhibitory processes, but not dorsal prefrontal (DPFC) based executive functions, represent an endophenotypic marker for bipolar disorder I (BDI)...
Catechol-O-methyltransferase (COMT) val158met genotype is associated with BOLD response as a function of task characteristicUlrich Ettinger
King s College London, Centre for Neuroimaging Sciences, Institute of Psychiatry, London, UK
Neuropsychopharmacology 33:3046-57. 2008....
Sex effects in prepulse inhibition and facilitation of the acoustic startle response: implications for pharmacological and treatment studiesIngrid Aasen
Department of Psychology, Division of Psychological Medicine, Institute of Psychiatry, London, UK
J Psychopharmacol 19:39-45. 2005....
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...
Cognitive impairment but preservation of sexual dimorphism in cognitive abilities in chronic schizophreniaRozmin Halari
Centre for Social, Genetic and Developmental Psychiatry, Institute of Psychiatry, PO 46, De Crespigny Park, London SE5 8AF, UK
Psychiatry Res 141:129-39. 2006..It is concluded that normal sexual dimorphism is undisturbed on both spatial and verbal tasks by the schizophrenia disease process...
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...
Abnormal asymmetry of N200 and P300 event-related potentials in subclinical depressionAlexander Luke Sumich
Kings College London, Institute of Psychiatry, BIAU, Centre for Neuroimaging Sciences, UK
J Affect Disord 92:171-83. 2006..Results support involvement of various cognitive mechanisms measured by P300 and N200 in subclinical depressive symptoms some of which may rely on sex...
Decomposing the neural correlates of antisaccade eye movements using event-related FMRIUlrich Ettinger
Centre for Neuroimaging Sciences, Institute of Psychiatry, King s College London, UK
Cereb Cortex 18:1148-59. 2008..These areas likely fulfill a more general supervisory role in the volitional control of eye movements, such as stimulus appraisal, task set, and decision making...
Does self-perceived mood predict more variance in cognitive performance than clinician-rated symptoms in schizophrenia?Rozmin Halari
Department of Psychology, Centre for Social, Genetic and Developmental Psychiatry, Institute of Psychiatry, PO 46, De Crespigny Park, London SE5 8AF, UK
Schizophr Bull 32:751-7. 2006..Self-perceived negative mood state may be a better predictor of cognitive deficits than clinician-rated symptoms in chronic schizophrenia patients...
Frontal lobe volumes in schizophrenia: effects of stage and duration of illnessPreethi Premkumar
King s College London, Institute of Psychiatry, Department of Psychology, PO78, De Crespigny Park, London SE5 8AF, UK
J Psychiatr Res 40:627-37. 2006..The enlargement of the premotor cortex and putamen are likely to be a result of antipsychotic medication...
Rumination and negative symptoms in schizophreniaRozmin Halari
Department of Psychology, Royal Holloway, University of London, Egham, United Kingdom
J Nerv Ment Dis 197:703-6. 2009..If the findings are replicated, interventions that reduce rumination and rigid thinking might be helpful to reduce some negative symptoms of psychosis...
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...
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....
Neuropsychological function-brain structure relationships and stage of illness: an investigation into chronic and first-episode schizophreniaPreethi Premkumar
Department of Psychology, Institute of Psychiatry, King s College London, London, UK
Psychiatry Res 162:195-204. 2008..A similar dissociation between young and older subjects of both healthy and patient groups suggests that a 'bigger-is-better' relationship style is present in older individuals regardless of a diagnosis of schizophrenia...
A neuropsychological investigation into violence and mental illnessIan Barkataki
Department of Psychological Medicine, Institute of Psychiatry, London, United Kingdom
Schizophr Res 74:1-13. 2005....
Event-related potential correlates of paranormal ideation and unusual experiencesAlex Sumich
BIAU, Biostatistics and Computing, Institute of Psychiatry, King s College London, London, UK
Cortex 44:1342-52. 2008..The sex differences observed are consistent with those previously observed in individuals with schizophrenia...
Event-related potential correlates of depression, insight and negative symptoms in males with recent-onset psychosisAlex Sumich
King s College London, Institute of Psychiatry, BIAU, Biostatistics and Computing, Centre for Neuroimaging Sciences, London SE5 8AF, UK
Clin Neurophysiol 117:1715-27. 2006..The neurobiology of clinical characteristics -in particular depression, insight and negative symptoms- in recent-onset psychosis (ROP) was studied using event-related potentials (ERPs)...
N100 and P300 amplitude to Go and No-Go variants of the auditory oddball in siblings discordant for schizophreniaAlex Sumich
King s College London, Institute of Psychiatry, BIAU, Centre for Neuroimaging Sciences, London SE5 8AF, UK
Schizophr Res 98:265-77. 2008..P300 amplitude reduction is reliably seen in schizophrenia. Inconsistent reports of isolated frontal and/or parietal deficits in unaffected family members may be clarified using a task that places greater load on frontal function...
Misattribution bias of threat-related facial expressions is related to a longer duration of illness and poor executive function in schizophrenia and schizoaffective disorderPreethi Premkumar
Department of Psychology, PO78, Institute of Psychiatry, King s College London, De Crespigny, Denmark Hill, London SE5 8AF, United Kingdom
Eur Psychiatry 23:14-9. 2008....
Comparable fMRI activity with differential behavioural performance on mental rotation and overt verbal fluency tasks in healthy men and womenRozmin Halari
Centre for Social, Genetic and Developmental Psychiatry, Institute of Psychiatry, De Crespigny Park, P O Box 46, London SE5 8AF, UK
Exp Brain Res 169:1-14. 2006..Our results demonstrate comparable brain activation in men and women in association with mental rotation and verbal fluency function with differential performance, and provide support for sex differences in brain-behaviour relationships...
The relationship of structural alterations to cognitive deficits in schizophrenia: a voxel-based morphometry studyElena Antonova
Department of Psychology, Institute of Psychiatry, London, UK
Biol Psychiatry 58:457-67. 2005..Region of interest studies have identified a number of structure-cognition associations in schizophrenia and revealed alterations in structure-cognition relationship in this population...
The relationship between brain structure and neurocognition in schizophrenia: a selective reviewElena Antonova
Division of Psychological Medicine, Institute of Psychiatry, De Crespigny Park, Denmark Hill, London SE5 8AF, UK
Schizophr Res 70:117-45. 2004..Finally, the methodological limitations of the reviewed studies are discussed and suggestions for future research are offered...
Focal structural changes and cognitive dysfunction in juvenile myoclonic epilepsyJ O'Muircheartaigh
Department of Clinical Neuroscience, Institute of Psychiatry, King s College London, De Crespigny Park, London SE5 8AF, UK
Neurology 76:34-40. 2011..The aim of this study was to determine if there were focal cortical abnormalities in juvenile myoclonic epilepsy (JME) using neuropsychological investigations and MRI...
Disease, deficit or denial? Models of poor insight in psychosisM A Cooke
Department of Psychology, Institute of Psychiatry, London, UK
Acta Psychiatr Scand 112:4-17. 2005..To examine the evidence for the three kinds of aetiological model that dominate the current literature on poor insight in psychosis: clinical models, the neuropsychological model, and the psychological denial model...
Neuroimaging of sexual arousal: research and clinical utilityA L Sumich
Division of Psychological Medicine, Institute of Psychiatry, London SE5 8AF
Hosp Med 64:28-33. 2003..Neuroimaging techniques offer insight into brain regions involved in sexual arousal and inhibition. The development of robust paradigms has implications for the assessment and treatment of sexual disorder in men and women...
Disruption of learned irrelevance in acute schizophrenia in a novel continuous within-subject paradigm suitable for fMRIAndrew M J Young
School of Psychology, University of Leicester, University Road, Leicester LE1 7RH, UK
Behav Brain Res 156:277-88. 2005..These findings establish the likely value of the new paradigm for neuroimaging studies of attentional dysfunction in acute schizophrenia...
Effects of oral procyclidine administration on cognitive functions in healthy subjects: implications for schizophreniaElizabeth Zachariah
J Clin Psychopharmacol 22:224-6. 2002
Cognitive effects of adjunctive 24-weeks Rivastigmine treatment to antipsychotics in schizophrenia: a randomized, placebo-controlled, double-blind investigationTonmoy Sharma
Clinical Research, Clinical Neuroscience Research Centre, Priory Hill, Dartford, Kent, UK
Schizophr Res 85:73-83. 2006..Future studies should investigate the effects of other procholinergic drugs, such as Galantamine, which also act on the nicotine receptors and may produce stronger cognitive effects in schizophrenia...
Regional cortical thinning in subjects with violent antisocial personality disorder or schizophreniaVeena M Narayan
Laboratory of Neuro Imaging, Ahmanson Lovelace Brain Mapping Center, Department of Neurology, David Geffen School of Medicine, UCLA, Los Angeles, CA, USA
Am J Psychiatry 164:1418-27. 2007....
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...
Schizoaffective disorder: diagnostic issues and future recommendationsGin S Malhi
Northern Clinical School, University of Sydney, Sydney, Australia
Bipolar Disord 10:215-30. 2008..This paper addresses the controversy regarding the diagnostic validity of schizoaffective disorder (SAD), a diagnosis that is used in both DSM-IV and ICD-10 and one that encroaches on both schizophrenia (SCZ) and bipolar disorder (BD)...
