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Czigler I, Sulykos I, File D, Kojouharova P, Gaál ZA. Visual mismatch negativity to disappearing parts of objects and textures. PLoS One 2019; 14:e0209130. [PMID: 30730889 PMCID: PMC6366727 DOI: 10.1371/journal.pone.0209130] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 01/26/2019] [Indexed: 01/14/2023] Open
Abstract
Visual mismatch negativity (vMMN), an event-related signature of automatic detection of events violating sequential regularities is traditionally investigated at the onset of frequent (standard) and rare (deviant) events. In a previous study we obtained vMMN to vanishing parts of continuously presented objects (diamonds with diagonals), and we concluded that the offset-related vMMN is a model of sensitivity to irregular partial occlusion of objects. In the present study we replicated the previous results, but in order to test the object-related interpretation we applied a new condition with a set of separate visual stimuli: a texture of bars with two orientations. In the texture condition (offset of bars with irregular vs. regular orientation) we obtained vMMN, showing that the continuous presence of objects is unnecessary for offset-related vMMN. However, unlike in the object-related condition, reappearance of the previously vanishing lines also elicited vMMN. In principle reappearance of the stimuli is an event with probability 1.0, and according to our results, the object condition reappearance was an expected event. However, the offset and onset of texture elements seems to be treated separately by the system underlying vMMN. As an advantage of the present method, the whole stimulus set during the inter-stimulus interval saturates the visual structures sensitive to stimulus input. Accordingly, the offset-related vMMN is less sensitive to low-level adaptation that differs between the deviant and standard stimuli.
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Affiliation(s)
- István Czigler
- Institute of Cognitive Neuroscience and Psychology, RCNS, HAS, Budapest, Hungary
| | - István Sulykos
- Institute of Cognitive Neuroscience and Psychology, RCNS, HAS, Budapest, Hungary
| | - Domonkos File
- Institute of Cognitive Neuroscience and Psychology, RCNS, HAS, Budapest, Hungary
- Institute of Psychology, Eötvös Loránd University, Budapest, Hungary
- Doctoral School of Psychology, Eötvös Loránd University, Budapest, Hungary
| | - Petia Kojouharova
- Institute of Cognitive Neuroscience and Psychology, RCNS, HAS, Budapest, Hungary
- Institute of Psychology, Eötvös Loránd University, Budapest, Hungary
- Doctoral School of Psychology, Eötvös Loránd University, Budapest, Hungary
| | - Zsófia Anna Gaál
- Institute of Cognitive Neuroscience and Psychology, RCNS, HAS, Budapest, Hungary
- * E-mail:
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Lee J, Reavis EA, Engel SA, Altshuler LL, Cohen MS, Glahn DC, Nuechterlein KH, Wynn JK, Green MF. fMRI evidence of aberrant neural adaptation for objects in schizophrenia and bipolar disorder. Hum Brain Mapp 2018; 40:1608-1617. [PMID: 30575206 DOI: 10.1002/hbm.24472] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 10/26/2018] [Accepted: 10/31/2018] [Indexed: 01/15/2023] Open
Abstract
Functional magnetic resonance imaging (fMRI) adaptation (also known as fMRI repetition suppression) has been widely used to characterize stimulus selectivity in vivo, a fundamental feature of neuronal processing in the brain. We investigated whether SZ patients and BD patients show aberrant fMRI adaptation for object perception. About 52 SZ patients, 55 BD patients, and 53 community controls completed an object discrimination task with three conditions: the same object presented twice, two exemplars from the same category, and two exemplars from different categories. We also administered two functional localizer tasks. A region of interest analysis was employed to evaluate a priori hypotheses about the lateral occipital complex (LOC) and early visual cortex (EVC). An exploratory whole brain analysis was also conducted. In the LOC and EVC, controls showed the expected reduced fMRI responses to repeated presentation of the same objects compared with different objects (i.e., fMRI adaptation for objects, p < .001). SZ patients showed an adaptation effect that was significantly smaller compared with controls. BD patients showed a lack of fMRI adaptation. The whole brain analyses showed enhanced fMRI responses to repeated presentation of the same objects only in BD patients in several brain regions including anterior cingulate cortex. This study was the first to employ fMRI adaptation for objects in SZ and BD. The current findings provide empirical evidence of aberrant fMRI adaptation in the visual cortex in SZ and BD, but in distinctly different ways.
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Affiliation(s)
- Junghee Lee
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, California.,Desert Pacific Mental Illness Research, Education and Clinical Center, Greater Los Angeles Veterans Affairs Healthcare System, Los Angeles, California
| | - Eric A Reavis
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, California.,Desert Pacific Mental Illness Research, Education and Clinical Center, Greater Los Angeles Veterans Affairs Healthcare System, Los Angeles, California
| | - Stephen A Engel
- Department of Psychology, University of Minnesota, Minneapolis, Minnesota
| | - Lori L Altshuler
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, California
| | - Mark S Cohen
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, California
| | - David C Glahn
- Department of Psychiatry, Yale University, New Haven, Connecticut.,Olin Neuropsychiatric Research Center, Institute of Living, Hartford Hospital Whitehall Research Building, Hartford, Connecticut
| | - Keith H Nuechterlein
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, California.,Department of Psychology, University of California Los Angeles, Los Angeles, California
| | - Jonathan K Wynn
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, California.,Desert Pacific Mental Illness Research, Education and Clinical Center, Greater Los Angeles Veterans Affairs Healthcare System, Los Angeles, California
| | - Michael F Green
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, California.,Desert Pacific Mental Illness Research, Education and Clinical Center, Greater Los Angeles Veterans Affairs Healthcare System, Los Angeles, California
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