Research Topics
| Jeffrey S BedwellSummaryAffiliation: University of Central Florida Country: USA Publications
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Detail Information
Publications
The effect of a red background on location backward masking by structureJeffrey S Bedwell
Department of Psychology, University of Central Florida, Orlando, Florida 32816 1390, USA
Percept Psychophys 70:503-7. 2008..23). This effect was strongest at the 47- and 60-msec stimulus onset asynchronies. Results suggest that red light primarily decreases interference from the mask in location backward masking by structure...- Comparison of three computer-administered cognitive tasks as putative endophenotypes of schizophreniaJeffrey S Bedwell
Department of Psychology, University of Central Florida, Orlando, FL 32816 1390, USA
Schizophr Res 88:36-46. 2006..Based on performance from the community-identified schizotypes, results suggest that performance on the CPT may represent a more robust endophenotype of schizophrenia, compared to the SOA and WCST... 
The effect of red light on backward masking in individuals with psychometrically defined schizotypyJeffrey S Bedwell
Department of Psychology, University of Central Florida, Orlando, FL 32816 1390, USA
Cogn Neuropsychiatry 13:491-504. 2008..The present study examines this effect in individuals with psychometrically defined schizotypy to explore the potential of this effect to be a useful new qualitative endophenotype for schizophrenia-spectrum traits...- Schizophrenia and red light: fMRI evidence for a novel biobehavioral markerJeffrey S Bedwell
Psychology Department, University of Central Florida, Orlando, 32816, USA
Int J Neurosci 116:881-94. 2006..Results provide physiological evidence that the M pathway response to red light is in the opposite direction than expected in a subset of nonpsychotic relatives of persons with schizophrenia... - Schizotypal personality disorder or prodromal symptoms of schizophrenia?Jeffrey S Bedwell
Department of Psychology, P O Box 161390, University of Central Florida, Orlando, FL 32816 1390, USA
Schizophr Res 80:263-9. 2005..Results suggest that the SPQ-B and Y-PARQ-B have moderate discriminate validity between the overlapping, yet distinct, constructs of schizotypal personality and heightened risk of developing psychosis (potentially prodromal)... - Functional neuroanatomy of subcomponent cognitive processes involved in verbal working memoryJeffrey S Bedwell
Department of Psychology, University of Central Florida, Orlando, Florida 32816 1390, USA
Int J Neurosci 115:1017-32. 2005..Several other brain regions showed activation limited to specific subcomponent processes... - The relationship between interview-based schizotypal personality dimension scores and the continuous performance testJeffrey S Bedwell
Department of Psychology, University of Central Florida, Orlando, FL 32816 1390, USA
Schizophr Res 108:158-62. 2009..Findings also add to a growing literature suggesting that Interpersonal SPD symptoms are primarily related to omission errors, while Disorganized SPD symptoms are primarily related to false alarm errors... - A potential qualitative endophenotype for schizophrenia: backward masking response to red lightJeffrey S Bedwell
Department of Psychology, University of Central Florida, 4000 Central Florida Blvd, Orlando, FL 32816 1390, United States
Psychiatry Res 166:166-73. 2009..This effect is unique from most existing endophenotypes in that it represents a distinct qualitative performance pattern rather than simply poorer performance relative to a comparison group... - Linguistic correlates of self in deceptive oral autobiographical narrativesJ S Bedwell
Department of Psychology, University of Central Florida, Orlando, FL 32816 1390, USA
Conscious Cogn 20:547-55. 2011..This suggests that narrative selves are constituted not as autonomous selves, but are subject to processes (e.g., psychological, linguistic, social) that are likely operating on a subconscious level... - The backward masking red light effect in schizophrenia: relationship to clinical features and neurocognitive performanceJeffrey S Bedwell
Department of Psychology, University of Central Florida, Orlando, FL 32816 1390, USA
J Abnorm Psychol 120:490-6. 2011..In contrast, there was no relationship between the red light change score and any of the neurocognitive variables in the control group... - The magnocellular visual system and schizophrenia: what can the color red tell us?Jeffrey S Bedwell
Psychology Department, University of Georgia, Athens, GA 30602, USA
Schizophr Res 63:273-84. 2003..The differential effect on the two groups appears to be attributable to a difference in activity of the M pathway. Performance in the relatives was consistent with the notion of a hyperactive M pathway... - Social anxiety and social cognition: the influence of sexScott R Sutterby
Department of Psychology, University of Central Florida, Orlando, FL, USA
Psychiatry Res 197:242-5. 2012..These preliminary results have clinical implications in the treatment of individuals with social phobia... - Is the odour identification deficit in schizophrenia influenced by odour hedonics?Vidyulata Kamath
Department of Psychology, University of Central Florida, Orlando, USA
Cogn Neuropsychiatry 16:448-60. 2011..CONCLUSIONS. Results provide preliminary support for a specific deficit in identifying pleasant odours in patients with schizophrenia. Future studies separating odours by valence categories are warranted... - Olfactory identification performance in individuals with psychometrically-defined schizotypyVidyulata Kamath
Department of Psychology, University of Central Florida, Orlando, FL 32816, USA
Schizophr Res 100:212-5. 2008..The findings may reflect either the abbreviated nature of the measures used, or a lack of reliable olfactory performance differences in schizotypy... - The backward masking red light effect and schizotypy: the influence of sexJeffrey S Bedwell
Department of Psychology, University of Central Florida, Orlando, FL, USA
Psychiatry Res 189:228-32. 2011..The red light effect continues to show promise as a new endophenotype for schizophrenia-spectrum disorders... 
Lack of neuropsychological deficits in generalized social phobiaScott R Sutterby
Department of Psychology, University of Central Florida, Orlando, Florida, United States of America
PLoS ONE 7:e42675. 2012....- Age-related decrements in performance on a brief continuous performance testTanja M Mani
Department of Psychology, University of Georgia, Athens, GA 30602 3013, USA
Arch Clin Neuropsychol 20:575-86. 2005..Overall, this study provides evidence for age-related differences in performance on a brief CPT, particularly for deficits in selective response inhibition... - A preliminary investigation on the relationship between color-word Stroop task performance and delusion-proneness in nonpsychiatric adultsDiana M Orem
Department of Psychology, University of Central Florida, P O Box 161390, Orlando, FL 32816 1390, USA
Psychiatry Res 175:27-32. 2010..This finding contributes to the cognitive neurobiological understanding of delusions and adds further support for the dimensional construct of propensity for delusions... - Increased activation of the anterior cingulate cortex during processing of disgust faces in individuals with social phobiaNader Amir
Department of Psychology, University of Georgia, Athens 30602 3013, USA
Biol Psychiatry 57:975-81. 2005..These studies have focused mostly on the activation of the amygdala. The anterior cingulate cortex (ACC) also has been implicated in processing emotional information, but its role in social phobia has not been examined... - Accelerated age-related decline of visual information processing in first-degree relatives of persons with schizophreniaJeffrey S Bedwell
Psychology Department, Clinical Psychology Program, University of Georgia, Athens, GA 30602, USA
Psychiatry Res 125:225-35. 2004.... - Chronic self-perceived stress and set-shifting performance in undergraduate studentsDiana M Orem
Department of Psychology, University of Central Florida, Orlando, FL 32816 1390, USA
Stress 11:73-8. 2008..This finding adds to a growing body of work that suggests a relationship between chronic stress and executive functioning, and extends these findings to include set-shifting performance... - Changes in the visual-evoked P1 potential as a function of schizotypy and background color in healthy young adultsJeffrey S Bedwell
Department of Psychology, University of Central Florida, 4000 Central Florida Blvd, Orlando, FL 32816 1390, USA
J Psychiatr Res 47:542-7. 2013..This can direct treatment efforts toward more homogeneous neuropathology targets... - Abbreviated form of the test of memory malingeringMichael David Horner
Ralph H Johnson Department of Veterans, Affairs Medical Center and Medical University of South Carolina, Charleston, SC, USA
Int J Neurosci 116:1181-6. 2006..Trial 1 scores > or =36 indicated 99% likelihood that TOMM would be passed; Trial 1 scores < or =27 indicated 100% likelihood of failure... - Functional magnetic resonance imaging examination of the magnocellular visual pathway in nonpsychotic relatives of persons with schizophreniaJeffrey S Bedwell
Schizophr Res 71:509-10. 2004