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Donati FL, Mayeli A, Nascimento Couto BA, Sharma K, Janssen S, Krafty RJ, Casali AG, Ferrarelli F. Prefrontal oscillatory slowing in early-course schizophrenia is associated with worse cognitive performance and negative symptoms: a TMS-EEG study. BIOLOGICAL PSYCHIATRY. COGNITIVE NEUROSCIENCE AND NEUROIMAGING 2024:S2451-9022(24)00201-5. [PMID: 39059465 DOI: 10.1016/j.bpsc.2024.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 07/02/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024]
Abstract
BACKGROUND Abnormalities in dorsolateral prefrontal cortex (DLPFC) oscillations are neurophysiological signatures of schizophrenia thought to underlie its cognitive deficits. Transcranial magnetic stimulation with electroencephalography (TMS-EEG) provides a measure of cortical oscillations unaffected by sensory relay functionality and/or patients' level of engagement, which are important confounding factors in schizophrenia. Previous TMS-EEG work showed reduced fast, gamma-range oscillations and a slowing of the main DLPFC oscillatory frequency, or natural frequency, in chronic schizophrenia. However, it is unclear whether this DLPFC natural frequency slowing is present in early-course schizophrenia (EC-SCZ) and is associated with symptom severity and cognitive dysfunction. METHODS We applied TMS-EEG to the left DLPFC in 30 EC-SCZ and 28 healthy control (HC) subjects. Goal-directed working memory performance was assessed using the "AX" Continuous Performance Task (AX-CPT). The EEG frequency with the highest cumulative power at the stimulation site, or natural frequency, was extracted. We also calculated the local Relative Spectral Power (RSP) as the average power in each frequency band divided by the broadband power. RESULTS Compared to HC, EC-SCZ had reduced DLPFC natural frequency (p=0.0000002, Cohen's d=-2.32) and higher DLPFC beta-range RSP (p=0.0003, Cohen's d=0.77). In EC-SCZ, the DLPFC natural frequency was inversely associated with negative symptoms. Across all participants, the beta-band RSP negatively correlated with the AX-CPT performance. CONCLUSIONS A DLPFC oscillatory slowing is an early pathophysiological biomarker of schizophrenia that is associated with its symptom severity and cognitive impairments. Future work should assess whether non-invasive neurostimulation can ameliorate prefrontal oscillatory deficits and related clinical functions in EC-SCZ.
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Affiliation(s)
- Francesco L Donati
- Department of Psychiatry, University of Pittsburgh, Pittsburgh - PA; Department of Health Sciences, University of Milan, Milan - Italy
| | - Ahmad Mayeli
- Department of Psychiatry, University of Pittsburgh, Pittsburgh - PA
| | | | - Kamakashi Sharma
- Department of Psychiatry, University of Pittsburgh, Pittsburgh - PA
| | - Sabine Janssen
- Department of Psychiatry, University of Pittsburgh, Pittsburgh - PA
| | - Robert J Krafty
- Department of Biostatistics & Bioinformatics, Emory University, Atlanta - GA
| | - Adenauer G Casali
- Institute of Science and Technology, Federal University of São Paulo, São José dos Campos - Brazil
| | - Fabio Ferrarelli
- Department of Psychiatry, University of Pittsburgh, Pittsburgh - PA.
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Schoonover KE, Dienel SJ, Holly Bazmi H, Enwright JF, Lewis DA. Altered excitatory and inhibitory ionotropic receptor subunit expression in the cortical visuospatial working memory network in schizophrenia. Neuropsychopharmacology 2024; 49:1183-1192. [PMID: 38548877 PMCID: PMC11109337 DOI: 10.1038/s41386-024-01854-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 02/14/2024] [Accepted: 03/06/2024] [Indexed: 05/23/2024]
Abstract
Dysfunction of the cortical dorsal visual stream and visuospatial working memory (vsWM) network in individuals with schizophrenia (SZ) likely reflects alterations in both excitatory and inhibitory neurotransmission within nodes responsible for information transfer across the network, including primary visual (V1), visual association (V2), posterior parietal (PPC), and dorsolateral prefrontal (DLPFC) cortices. However, the expression patterns of ionotropic glutamatergic and GABAergic receptor subunits across these regions, and alterations of these patterns in SZ, have not been investigated. We quantified transcript levels of key subunits for excitatory N-methyl-D-aspartate receptors (NMDARs), excitatory alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid receptors (AMPARs), and inhibitory GABAA receptors (GABAARs) in postmortem total gray matter from V1, V2, PPC, and DLPFC of unaffected comparison (UC) and matched SZ subjects. In UC subjects, levels of most AMPAR and NMDAR mRNAs exhibited opposite rostral-to-caudal gradients, with AMPAR GRIA1 and GRIA2 mRNA levels highest in DLPFC and NMDAR GRIN1 and GRIN2A mRNA levels highest in V1. GABRA5 and GABRA1 mRNA levels were highest in DLPFC and V1, respectively. In SZ, most transcript levels were lower relative to UC subjects, with these differences largest in V1, intermediate in V2 and PPC, and smallest in DLPFC. In UC subjects, these distinct patterns of receptor transcript levels across the cortical vsWM network suggest that the balance between excitation and inhibition is achieved in a region-specific manner. In SZ subjects, the large deficits in excitatory and inhibitory receptor transcript levels in caudal sensory regions suggest that abnormalities early in the vsWM pathway might contribute to altered information processing in rostral higher-order regions.
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Affiliation(s)
- Kirsten E Schoonover
- Translational Neuroscience Program, Department of Psychiatry, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Psychiatry and Behavioral Neurobiology, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Samuel J Dienel
- Translational Neuroscience Program, Department of Psychiatry, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Neuroscience, Dietrich School of Arts and Sciences, University of Pittsburgh, Pittsburgh, PA, USA
- Center for the Neural Basis of Cognition, Carnegie Mellon University, Pittsburgh, PA, USA
| | - H Holly Bazmi
- Translational Neuroscience Program, Department of Psychiatry, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - John F Enwright
- Translational Neuroscience Program, Department of Psychiatry, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - David A Lewis
- Translational Neuroscience Program, Department of Psychiatry, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
- Department of Neuroscience, Dietrich School of Arts and Sciences, University of Pittsburgh, Pittsburgh, PA, USA.
- Center for the Neural Basis of Cognition, Carnegie Mellon University, Pittsburgh, PA, USA.
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Pronina MV, Ponomarev VA, Poliakov YI, Martins-Mourao A, Plotnikova IV, Müller A, Kropotov YD. Event-related EEG synchronization and desynchronization in patients with obsessive-compulsive disorder. Psychophysiology 2023; 60:e14403. [PMID: 37578353 DOI: 10.1111/psyp.14403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 04/09/2023] [Accepted: 07/07/2023] [Indexed: 08/15/2023]
Abstract
Symptoms in patients with obsessive-compulsive disorder (OCD) are associated with impairment in cognitive control, attention, and action inhibition. We investigated OCD group differences relative to healthy subjects in terms of event-related alpha and beta range synchronization (ERS) and desynchronization (ERD) during a visually cued Go/NoGo task. Subjects were 62 OCD patients and 296 healthy controls (HC). The OCD group in comparison with HC, showed a changed value of alpha/beta oscillatory power over the central cortex, in particular, an increase in the alpha/beta ERD over the central-parietal cortex during the interstimulus interval (Cue condition) as well as changes in the postmovement beta synchronization topography and frequency. Over the frontal cortex, the OCD group showed an increase in magnitude of the beta ERS in NoGo condition. Within the parietal-occipital ERS/ERD modulations, the OCD group showed an increase in the alpha/beta ERD over the parietal cortex after the presentation of the visual stimuli as well as a decrease in the beta ERD over the occipital cortex after the presentation of the Cue and Go stimuli. The specific properties in the ERS/ERD patterns observed in the OCD group may reflect high involvement of the frontal and central cortex in action preparation and action inhibition processes and, possibly, in maintaining the motor program, which might be a result of the dysfunction of the cortico-striato-thalamo-cortical circuits involving prefrontal cortex. The data about enhanced involvement of the parietal cortex in the evaluation of the visual stimuli are in line with the assumption about overfocused attention in OCD.
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Affiliation(s)
- Marina V Pronina
- N.P. Bechtereva Institute of the Human Brain of Russian Academy of Sciences, Saint-Petersburg, Russia
| | - Valery A Ponomarev
- N.P. Bechtereva Institute of the Human Brain of Russian Academy of Sciences, Saint-Petersburg, Russia
| | - Yury I Poliakov
- Pavlov First Saint-Petersburg State Medical University, Saint-Petersburg, Russia
- Pavlov Institute of Physiology of the Russian Academy of Sciences, Saint-Petersburg, Russia
| | - Antonio Martins-Mourao
- QEEG & Brain Research Lab, Life, Health and Chemical Sciences, Open University, Milton Keynes, UK
| | - Irina V Plotnikova
- N.P. Bechtereva Institute of the Human Brain of Russian Academy of Sciences, Saint-Petersburg, Russia
| | | | - Yury D Kropotov
- N.P. Bechtereva Institute of the Human Brain of Russian Academy of Sciences, Saint-Petersburg, Russia
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Govani V, Shastry AM, Iosifescu DV, Govil P, Mayer MR, Sobeih T, Choo TH, Wall MM, Sehatpour P, Kantrowitz JT. Augmentation of learning in schizophrenia by d-serine and auditory remediation is related to auditory and frontally-generated biomarkers: A randomized, double-blind, placebo-controlled study. Schizophr Res 2023; 260:205-208. [PMID: 37690312 DOI: 10.1016/j.schres.2023.08.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 08/01/2023] [Accepted: 08/27/2023] [Indexed: 09/12/2023]
Affiliation(s)
- Viraj Govani
- New York State Psychiatric Institute, New York, NY, United States of America
| | - Adithya M Shastry
- New York State Psychiatric Institute, New York, NY, United States of America; Columbia University, College of Physicians and Surgeons, New York, NY, United States of America
| | - Dan V Iosifescu
- Nathan Kline Institute, Orangeburg, NY, United States of America; New York University Grossman School of Medicine, New York, NY, United States of America
| | - Preetika Govil
- New York State Psychiatric Institute, New York, NY, United States of America
| | - Megan R Mayer
- New York State Psychiatric Institute, New York, NY, United States of America
| | - Tarek Sobeih
- Nathan Kline Institute, Orangeburg, NY, United States of America
| | - Tse-Hwei Choo
- New York State Psychiatric Institute, New York, NY, United States of America; Columbia University, College of Physicians and Surgeons, New York, NY, United States of America
| | - Melanie M Wall
- New York State Psychiatric Institute, New York, NY, United States of America; Columbia University, College of Physicians and Surgeons, New York, NY, United States of America
| | - Pejman Sehatpour
- New York State Psychiatric Institute, New York, NY, United States of America; Columbia University, College of Physicians and Surgeons, New York, NY, United States of America; Nathan Kline Institute, Orangeburg, NY, United States of America
| | - Joshua T Kantrowitz
- New York State Psychiatric Institute, New York, NY, United States of America; Columbia University, College of Physicians and Surgeons, New York, NY, United States of America; Nathan Kline Institute, Orangeburg, NY, United States of America.
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Sehatpour P, Iosifescu DV, De Baun HM, Shope C, Mayer MR, Gangwisch J, Dias E, Sobeih T, Choo TH, Wall MM, Medalia A, Saperstein AM, Kegeles LS, Girgis RR, Carlson M, Kantrowitz JT. Dose-Dependent Augmentation of Neuroplasticity-Based Auditory Learning in Schizophrenia: A Double-Blind, Placebo-Controlled, Randomized, Target Engagement Clinical Trial of the NMDA Glutamate Receptor Agonist d-serine. Biol Psychiatry 2023; 94:164-173. [PMID: 36958998 PMCID: PMC10313776 DOI: 10.1016/j.biopsych.2023.01.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 01/11/2023] [Accepted: 01/13/2023] [Indexed: 01/30/2023]
Abstract
BACKGROUND Patients with schizophrenia show reduced NMDA glutamate receptor-dependent auditory plasticity, which is rate limiting for auditory cognitive remediation (AudRem). We evaluate the utility of behavioral and neurophysiological pharmacodynamic target engagement biomarkers, using a d-serine+AudRem combination. METHODS Forty-five participants with schizophrenia or schizoaffective disorder were randomized to 3 once-weekly AudRem visits + double-blind d-serine (80, 100, or 120 mg/kg) or placebo in 3 dose cohorts of 12 d-serine and 3 placebo-treated participants each. In AudRem, participants indicated which paired tone was higher in pitch. The primary outcome was plasticity improvement, operationalized as change in pitch threshold between AudRem tones [(test tone Hz - reference tone Hz)/reference tone Hz] between the initial plateau pitch threshold (mean of trials 20-30 of treatment visit 1) to pitch threshold at the end of visit(s). Target engagement was assessed by electroencephalography outcomes, including mismatch negativity (pitch primary). RESULTS There was a significant overall treatment effect for plasticity improvement (p = .014). Plasticity improvement was largest within the 80 and 100 mg/kg groups (p < .001, d > 0.67), while 120 mg/kg and placebo-treated participants showed nonsignificant within-group changes. Plasticity improvement was seen after a single treatment and was sustained on subsequent treatments. Target engagement was demonstrated by significantly larger mismatch negativity (p = .049, d = 1.0) for the 100 mg/kg dose versus placebo. CONCLUSIONS Our results demonstrate sufficient proof of principle for continued development of both the d-serine+AudRem combination and our target engagement methodology. The ultimate utility is dependent on the results of an ongoing larger, longer study of the combination for clinically relevant outcomes.
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Affiliation(s)
- Pejman Sehatpour
- Area Psychosis, New York State Psychiatric Institute, New York, New York; Psychiatry, College of Physicians and Surgeons, Columbia University, New York, New York; Nathan Kline Institute, Orangeburg, New York
| | - Dan V Iosifescu
- Nathan Kline Institute, Orangeburg, New York; Psychiatry, New York University Grossman School of Medicine, New York, New York
| | - Heloise M De Baun
- Area Psychosis, New York State Psychiatric Institute, New York, New York
| | | | - Megan R Mayer
- Area Psychosis, New York State Psychiatric Institute, New York, New York
| | - James Gangwisch
- Area Psychosis, New York State Psychiatric Institute, New York, New York; Psychiatry, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Elisa Dias
- Nathan Kline Institute, Orangeburg, New York; Psychiatry, New York University Grossman School of Medicine, New York, New York
| | | | - Tse-Hwei Choo
- Area Psychosis, New York State Psychiatric Institute, New York, New York; Psychiatry, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Melanie M Wall
- Area Psychosis, New York State Psychiatric Institute, New York, New York; Psychiatry, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Alice Medalia
- Area Psychosis, New York State Psychiatric Institute, New York, New York; Psychiatry, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Alice M Saperstein
- Psychiatry, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Lawrence S Kegeles
- Area Psychosis, New York State Psychiatric Institute, New York, New York; Psychiatry, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Ragy R Girgis
- Area Psychosis, New York State Psychiatric Institute, New York, New York; Psychiatry, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Marlene Carlson
- Area Psychosis, New York State Psychiatric Institute, New York, New York; Psychiatry, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Joshua T Kantrowitz
- Area Psychosis, New York State Psychiatric Institute, New York, New York; Psychiatry, College of Physicians and Surgeons, Columbia University, New York, New York; Nathan Kline Institute, Orangeburg, New York.
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Yu H, Wang M, Yang Q, Xu X, Zhang R, Chen X, Le W. The electrophysiological and neuropathological profiles of cerebellum in APP swe /PS1 ΔE9 mice: A hypothesis on the role of cerebellum in Alzheimer's disease. Alzheimers Dement 2023; 19:2365-2375. [PMID: 36469008 DOI: 10.1002/alz.12853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 09/28/2022] [Accepted: 10/05/2022] [Indexed: 12/11/2022]
Abstract
We propose the hypothesis that the cerebellar electrophysiology and sleep-wake cycles may be altered at the early stage of Alzheimer's disease (AD), proceeding the amyloid-β neuropathological hallmarks. The electrophysiologic characteristics of cerebellum thereby might be served as a biomarker in the prepathological detection of AD. Sleep disturbances are common in preclinical AD patients, and the cerebellum has been implicated in sleep-wake regulation by several pioneer studies. Additionally, recent studies suggest that the structure and function of the cerebellum may be altered at the early stages of AD, indicating that the cerebellum may be involved in the disease's progression. We used APPswe /PS1ΔE9 mice as a model of AD, monitored and analyzed electroencephalogram data, and assessed neuropathological profiles in the cerebellum of AD mice. Our hypothesis may establish a linkage between the cerebellum and AD, thereby potentially providing new perspectives on the pathogenesis of the disease.
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Affiliation(s)
- Hang Yu
- Institute of Neurology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Manli Wang
- Institute of Neurology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Qiu Yang
- Institute of Neurology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Xiaojiao Xu
- Institute of Neurology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Rong Zhang
- Institute of Neurology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Xi Chen
- Institute of Neurology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Weidong Le
- Institute of Neurology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
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Qian N, Lipkin RM, Kaszowska A, Silipo G, Dias EC, Butler PD, Javitt DC. Computational modeling of excitatory/inhibitory balance impairments in schizophrenia. Schizophr Res 2022; 249:47-55. [PMID: 32291128 PMCID: PMC8760932 DOI: 10.1016/j.schres.2020.03.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 03/16/2020] [Accepted: 03/17/2020] [Indexed: 12/14/2022]
Abstract
Deficits in glutamatergic function are well established in schizophrenia (SZ) as reflected in "input" dysfunction across sensory systems. By contrast, less is known about contributions of the GABAergic system to impairments in excitatory/inhibitory balance. We investigated this issue by measuring contrast thresholds for orientation detection, orientation discriminability, and orientation-tilt-aftereffect curves in schizophrenia subjects and matched controls. These measures depend on the amplitude and width of underlying orientation tuning curves, which, in turn, depend on excitatory and inhibitory interactions. By simulating a well-established V1 orientation selectivity model and its link to perception, we demonstrate that reduced cortical excitation and inhibition are both necessary to explain our psychophysical data. Reductions in GABAergic feedback may represent a compensatory response to impaired glutamatergic input in SZ, or a separate pathophysiological event. We also found evidence for the widely accepted, but rarely tested, inverse relationship between orientation discriminability and tuning width.
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Affiliation(s)
- Ning Qian
- Department of Neuroscience, Zuckerman Institute, Department of Physiology & Cellular Biophysics, Columbia University, New York, NY 10027, United States of America
| | - Richard M Lipkin
- Department of Neuroscience, Zuckerman Institute, Department of Physiology & Cellular Biophysics, Columbia University, New York, NY 10027, United States of America
| | - Aleksandra Kaszowska
- Schizophrenia Research Division, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962, United States of America; Department of Electronic Systems, Aalborg University, Denmark
| | - Gail Silipo
- Schizophrenia Research Division, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962, United States of America
| | - Elisa C Dias
- Schizophrenia Research Division, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962, United States of America
| | - Pamela D Butler
- Schizophrenia Research Division, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962, United States of America
| | - Daniel C Javitt
- Schizophrenia Research Division, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962, United States of America; Division of Experimental Therapeutics, Department of Psychiatry, Columbia University, New York, NY 10032, United States of America.
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Tarantino V, Visalli A, Facchini S, Rossato C, Bertoldo A, Silvestri E, Cecchin D, Capizzi M, Anglani M, Baro V, Denaro L, Della Puppa A, D'Avella D, Corbetta M, Vallesi A. Impaired cognitive control in patients with brain tumors. Neuropsychologia 2022; 169:108187. [PMID: 35218790 DOI: 10.1016/j.neuropsychologia.2022.108187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 01/19/2022] [Accepted: 02/18/2022] [Indexed: 11/18/2022]
Abstract
Though the assessment of cognitive functions is proven to be a reliable prognostic indicator in patients with brain tumors, some of these functions, such as cognitive control, are still rarely investigated. The objective of this study was to examine proactive and reactive control functions in patients with focal brain tumors and to identify lesioned brain areas more at "risk" for developing impairment of these functions. To this end, a group of twenty-two patients, candidate to surgery, were tested with an AX-CPT task and a Stroop task, along with a clinical neuropsychological assessment, and their performance was compared to that of a well-matched healthy control group. Although overall accuracy and response times were similar for patients and control groups, the patient group failed more on the BX trials of the AX-CPT task and the incongruent trials of the Stroop task, specifically. Behavioral results were associated with the damaged brain areas, mostly distributed in right frontal regions, by means of a lesion-symptom mapping multivariate approach. This analysis showed that a white matter cluster in the right prefrontal area was associated with lower d'-context values on the AX-CPT, which reflect the fact that these patients rely more on later information (reactive processes) to respond to unexpected and conflicting stimuli, than on earlier contextual cues (proactive processes). Taken together, these results suggest that patients with brain tumors present an unbalance between proactive and reactive control strategies in more interfering conditions, in association with right prefrontal white matter lesions.
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Affiliation(s)
- Vincenza Tarantino
- Department of Psychology, Educational Science and Human Movement, University of Palermo, Palermo, Italy.
| | - Antonino Visalli
- Department of Neuroscience, University of Padova, Padova, Italy; Padova Neuroscience Center, University of Padova, Padova, Italy
| | - Silvia Facchini
- Department of Neuroscience, University of Padova, Padova, Italy
| | - Chiara Rossato
- Department of Neuroscience, University of Padova, Padova, Italy
| | - Alessandra Bertoldo
- Padova Neuroscience Center, University of Padova, Padova, Italy; Department of Information Engineering, University of Padova, Padova, Italy
| | - Erica Silvestri
- Department of Information Engineering, University of Padova, Padova, Italy
| | - Diego Cecchin
- Padova Neuroscience Center, University of Padova, Padova, Italy; Nuclear Medicine Unit, Department of Medicine, University of Padova, Padova, Italy
| | | | | | - Valentina Baro
- Department of Neuroscience, University of Padova, Padova, Italy
| | - Luca Denaro
- Department of Neuroscience, University of Padova, Padova, Italy; Padova Neuroscience Center, University of Padova, Padova, Italy
| | - Alessandro Della Puppa
- Neurosurgery, Department of NEUROFARBA, University Hospital of Careggi, University of Florence, Florence, Italy
| | - Domenico D'Avella
- Department of Neuroscience, University of Padova, Padova, Italy; Padova Neuroscience Center, University of Padova, Padova, Italy
| | - Maurizio Corbetta
- Department of Neuroscience, University of Padova, Padova, Italy; Padova Neuroscience Center, University of Padova, Padova, Italy; Venetian Institute of Molecular Medicine (VIMM) Padova, Italy
| | - Antonino Vallesi
- Department of Neuroscience, University of Padova, Padova, Italy; Padova Neuroscience Center, University of Padova, Padova, Italy
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9
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Salvador A, Arnal LH, Vinckier F, Domenech P, Gaillard R, Wyart V. Premature commitment to uncertain decisions during human NMDA receptor hypofunction. Nat Commun 2022; 13:338. [PMID: 35039498 PMCID: PMC8763907 DOI: 10.1038/s41467-021-27876-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 12/21/2021] [Indexed: 11/15/2022] Open
Abstract
Making accurate decisions based on unreliable sensory evidence requires cognitive inference. Dysfunction of n-methyl-d-aspartate (NMDA) receptors impairs the integration of noisy input in theoretical models of neural circuits, but whether and how this synaptic alteration impairs human inference and confidence during uncertain decisions remains unknown. Here we use placebo-controlled infusions of ketamine to characterize the causal effect of human NMDA receptor hypofunction on cognitive inference and its neural correlates. At the behavioral level, ketamine triggers inference errors and elevated decision uncertainty. At the neural level, ketamine is associated with imbalanced coding of evidence and premature response preparation in electroencephalographic (EEG) activity. Through computational modeling of inference and confidence, we propose that this specific pattern of behavioral and neural impairments reflects an early commitment to inaccurate decisions, which aims at resolving the abnormal uncertainty generated by NMDA receptor hypofunction.
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Affiliation(s)
- Alexandre Salvador
- Laboratoire de Neurosciences Cognitives et Computationnelles, Institut National de la Santé et de la Recherche Médicale, Paris, France
- Département d'Études Cognitives, École Normale Supérieure, Université PSL, Paris, France
- Université de Paris, Paris, France
- Département de Psychiatrie, Service Hospitalo-Universitaire, GHU Paris Psychiatrie et Neurosciences, Paris, France
| | - Luc H Arnal
- Institut de l'Audition, Inserm unit 1120, Institut Pasteur, Paris, France
| | - Fabien Vinckier
- Université de Paris, Paris, France
- Département de Psychiatrie, Service Hospitalo-Universitaire, GHU Paris Psychiatrie et Neurosciences, Paris, France
- Équipe Motivation, Cerveau et Comportement, Institut du Cerveau, Sorbonne Université, Paris, France
| | - Philippe Domenech
- Équipe Neurophysiologie des Comportements Répétitifs, Institut du Cerveau, Sorbonne Université, Paris, France
- Département Médico-Universitaire de Psychiatrie et d'Addictologie, CHU AP-HP Henri Mondor, Université Paris-Est Créteil, Créteil, France
| | - Raphaël Gaillard
- Université de Paris, Paris, France
- Département de Psychiatrie, Service Hospitalo-Universitaire, GHU Paris Psychiatrie et Neurosciences, Paris, France
- Unité de Neuropathologie Expérimentale, Département de Santé Globale, Institut Pasteur, Paris, France
| | - Valentin Wyart
- Laboratoire de Neurosciences Cognitives et Computationnelles, Institut National de la Santé et de la Recherche Médicale, Paris, France.
- Département d'Études Cognitives, École Normale Supérieure, Université PSL, Paris, France.
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10
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Becske M, Marosi C, Molnár H, Fodor Z, Tombor L, Csukly G. Distractor filtering and its electrophysiological correlates in schizophrenia. Clin Neurophysiol 2021; 133:71-82. [PMID: 34814018 DOI: 10.1016/j.clinph.2021.10.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 09/07/2021] [Accepted: 10/09/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Patients with schizophrenia are characterized by compromised working memory (WM) performance and increased distractibility. Theta synchronization (especially over the frontal midline areas) is related to cognitive control and executive processes during WM encoding and retention. Alpha event-related desynchronization (ERD) is associated with information processing and attention. METHODS Participants (35 patients and 39 matched controls) performed a modified Sternberg WM task, containing salient and non-salient distractor items in the retention period. A high-density 128 channel EEG was recorded during the task. Theta (4-7 Hz) and fast alpha (10-13 Hz) event-related spectral perturbation (ERSP) were analyzed during the retention and encoding period. RESULTS Patients with schizophrenia showed worse WM performance and increased attentional distractibility in terms of lower hit rates and increased distractor-related commission errors compared to healthy controls. Theta synchronization was modulated by condition (learning vs. distractor) in both groups but it was modulated by salience only in controls. Furthermore, salience of distractors modulated less the fast alpha ERD in patients. CONCLUSIONS Our results suggest that patients with schizophrenia process salient and non-salient distracting information less efficiently and show weaker cognitive control compared to controls. SIGNIFICANCE These differences may partly account for diminished WM performance and increased distractibility in schizophrenia.
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Affiliation(s)
- Melinda Becske
- Department of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary
| | - Csilla Marosi
- Department of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary
| | - Hajnalka Molnár
- Department of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary
| | - Zsuzsanna Fodor
- Department of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary
| | - László Tombor
- Department of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary
| | - Gábor Csukly
- Department of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary.
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11
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de Bustamante Simas ML, Maranhão ACT, Lacerda AM, Teixeira FS, Freire CHR, da Silva Raposo CC, de Menezes GMM. Pictorial size perception in schizophrenia. PSICOLOGIA-REFLEXAO E CRITICA 2021; 34:36. [PMID: 34806134 PMCID: PMC8606485 DOI: 10.1186/s41155-021-00201-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 11/06/2021] [Indexed: 11/10/2022] Open
Abstract
In this study, we compared visual pictorial size perception between healthy volunteers (CG) and an experimental group (EG) of people diagnosed with schizophrenia. We have been using paintings by Salvador Dalí and Rorschach plates to estimate visual pictorial size perception. In this transversal, ex post facto, and quasi-experimental study, we observed differences between EG and CG. Schizophrenic in-patients perceived sizes about 1.3-fold greater than healthy volunteers (p=0.006), implying that pictorial size perception is altered in some way in schizophrenia. Considering the present and previous results, this measurement of diameter size of first pictorial perception may be a useful estimate of some aspects of perceptual alterations that may be associated with psychotic symptoms in prodromal and acute schizophrenic episodes and other related mental states. Eventually, this may help in preventing people from evolving to acute episodes.
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Affiliation(s)
- Maria Lúcia de Bustamante Simas
- Laboratório de Percepção Visual, Programa da Pós Graduação em Psicologia, Centro de Filosofia e Ciências Humanas, Universidade Federal de Pernambuco, Recife, Brazil
| | - Ana Cristina Taunay Maranhão
- Laboratório de Percepção Visual, Programa da Pós Graduação em Psicologia, Centro de Filosofia e Ciências Humanas, Universidade Federal de Pernambuco, Recife, Brazil
| | - Aline Mendes Lacerda
- Laboratório de Percepção Visual, Programa da Pós Graduação em Psicologia, Centro de Filosofia e Ciências Humanas, Universidade Federal de Pernambuco, Recife, Brazil
| | - Flora Silva Teixeira
- Laboratório de Percepção Visual, Programa da Pós Graduação em Psicologia, Centro de Filosofia e Ciências Humanas, Universidade Federal de Pernambuco, Recife, Brazil
| | - Carlos Henrique Resende Freire
- Laboratório de Percepção Visual, Programa da Pós Graduação em Psicologia, Centro de Filosofia e Ciências Humanas, Universidade Federal de Pernambuco, Recife, Brazil
| | - Cecília Coimbra da Silva Raposo
- Laboratório de Percepção Visual, Programa da Pós Graduação em Psicologia, Centro de Filosofia e Ciências Humanas, Universidade Federal de Pernambuco, Recife, Brazil
| | - Georgia Mônica Marque de Menezes
- Laboratório de Percepção Visual, Programa da Pós Graduação em Psicologia, Centro de Filosofia e Ciências Humanas, Universidade Federal de Pernambuco, Recife, Brazil
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12
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Zheng Y, Liu XL, Hsieh LT, Hurtado M, Wang Y, Niendam TA, Carter CS, Ranganath C, Ragland JD. Disrupted Modulation of Alpha and Low Beta Oscillations Mediates Temporal Sequence Memory Deficits in People With Schizophrenia. BIOLOGICAL PSYCHIATRY: COGNITIVE NEUROSCIENCE AND NEUROIMAGING 2021; 6:1157-1164. [PMID: 33862254 DOI: 10.1016/j.bpsc.2021.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 04/01/2021] [Accepted: 04/01/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND People with schizophrenia (SZ) exhibit impaired episodic memory when relating objects to each other in time and space. Empirical studies and computational models suggest that low-frequency neural oscillations may be a mechanism by which the brain keeps track of temporal relationships during encoding and retrieval, with modulation of oscillatory power as sequences are learned. It is unclear whether sequence memory deficits in SZ are associated with altered neural oscillations. METHODS Using electroencephalography, this study examined neural oscillations in 51 healthy control subjects and 37 people with SZ during a temporal sequence learning task. Multiple 5-object picture sequences were presented across 4 study-test blocks in either fixed or random order. Participants answered semantic questions for each object (e.g., living/nonliving), and sequence memory was operationalized as faster responses for fixed versus random sequences. Differences in oscillatory power between fixed versus random sequences provided a neural index of temporal sequence memory. RESULTS Although both groups showed reaction time differences in late blocks (blocks 3 and 4), this evidence of sequence memory was reduced in people with SZ relative to healthy control subjects. Decreases in globally distributed prestimulus alpha (8-12 Hz) and beta 1 (13-20 Hz) power for fixed versus random sequences in late blocks were also attenuated in people with SZ relative to healthy control subjects. Moreover, changes in oscillatory power predicted individual reaction time differences and fully mediated the relationship between group and sequence memory. CONCLUSIONS Disrupted modulation of alpha and beta 1 electroencephalography oscillations is a candidate mechanism of temporal sequence memory deficits in people with SZ.
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Affiliation(s)
- Yicong Zheng
- Center for Neuroscience, University of California, Davis, Davis, California; Department of Psychology, University of California, Davis, Davis, California
| | - Xiaonan L Liu
- Center for Neuroscience, University of California, Davis, Davis, California; Department of Psychology, University of California, Davis, Davis, California
| | - Liang-Tien Hsieh
- Department of Psychology, University of California, Berkeley, Berkeley, California; Helen Wills Neuroscience Institute, University of California, Berkeley, Berkeley, California
| | - Mitzi Hurtado
- Department of Psychiatry and Behavioral Sciences, University of California, Davis, Davis, California
| | - Yan Wang
- Department of Psychology, University of California, Davis, Davis, California
| | - Tara A Niendam
- Department of Psychiatry and Behavioral Sciences, University of California, Davis, Davis, California
| | - Cameron S Carter
- Department of Psychology, University of California, Davis, Davis, California; Department of Psychiatry and Behavioral Sciences, University of California, Davis, Davis, California
| | - Charan Ranganath
- Center for Neuroscience, University of California, Davis, Davis, California; Department of Psychology, University of California, Davis, Davis, California
| | - J Daniel Ragland
- Department of Psychiatry and Behavioral Sciences, University of California, Davis, Davis, California.
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13
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Javitt DC, Siegel SJ, Spencer KM, Mathalon DH, Hong LE, Martinez A, Ehlers CL, Abbas AI, Teichert T, Lakatos P, Womelsdorf T. A roadmap for development of neuro-oscillations as translational biomarkers for treatment development in neuropsychopharmacology. Neuropsychopharmacology 2020; 45:1411-1422. [PMID: 32375159 PMCID: PMC7360555 DOI: 10.1038/s41386-020-0697-9] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 03/16/2020] [Accepted: 04/27/2020] [Indexed: 02/08/2023]
Abstract
New treatment development for psychiatric disorders depends critically upon the development of physiological measures that can accurately translate between preclinical animal models and clinical human studies. Such measures can be used both as stratification biomarkers to define pathophysiologically homogeneous patient populations and as target engagement biomarkers to verify similarity of effects across preclinical and clinical intervention. Traditional "time-domain" event-related potentials (ERP) have been used translationally to date but are limited by the significant differences in timing and distribution across rodent, monkey and human studies. By contrast, neuro-oscillatory responses, analyzed within the "time-frequency" domain, are relatively preserved across species permitting more precise translational comparisons. Moreover, neuro-oscillatory responses are increasingly being mapped to local circuit mechanisms and may be useful for investigating effects of both pharmacological and neuromodulatory interventions on excitatory/inhibitory balance. The present paper provides a roadmap for development of neuro-oscillatory responses as translational biomarkers in neuropsychiatric treatment development.
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Affiliation(s)
- Daniel C Javitt
- Department of Psychiatry, Columbia University Medical Center, New York, NY, 10032, USA.
- Schizophrenia Research Division, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY, 10954, USA.
| | - Steven J Siegel
- Department of Psychiatry and Behavioral Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90033, USA
| | - Kevin M Spencer
- Research Service, VA Boston Healthcare System, and Dept. of Psychiatry, Harvard Medical School, Boston, MA, 02130, USA
| | - Daniel H Mathalon
- VA San Francisco Healthcare System, University of California, San Francisco, San Francisco, CA, 94121, USA
| | - L Elliot Hong
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Antigona Martinez
- Department of Psychiatry, Columbia University Medical Center, New York, NY, 10032, USA
- Schizophrenia Research Division, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY, 10954, USA
| | - Cindy L Ehlers
- Department of Neuroscience, The Scripps Research Institute, 10550 N Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Atheir I Abbas
- VA Portland Health Care System, Portland, OR, 97239, USA
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, 97239, USA
- Department of Psychiatry, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Tobias Teichert
- Departments of Psychiatry and Bioengineering, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Peter Lakatos
- Schizophrenia Research Division, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY, 10954, USA
| | - Thilo Womelsdorf
- Department of Psychology, Vanderbilt University, Nashville, TN, 37203, USA
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14
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de la Garrigue N, Glasser J, Sehatpour P, Iosifescu DV, Dias E, Carlson M, Shope C, Sobeih T, Choo TH, Wall MM, Kegeles LS, Gangwisch J, Mayer M, Brazis S, De Baun HM, Wolfer S, Bermudez D, Arnold M, Rette D, Meftah AM, Conant M, Lieberman JA, Kantrowitz JT. Grant Report on d-Serine Augmentation of Neuroplasticity-Based Auditory Learning in Schizophrenia †. JOURNAL OF PSYCHIATRY AND BRAIN SCIENCE 2020; 5:e200018. [PMID: 32856005 PMCID: PMC7448686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
We report on the rationale and design of an ongoing NIMH sponsored R61-R33 project in schizophrenia/schizoaffective disorder. This project studies augmenting the efficacy of auditory neuroplasticity cognitive remediation (AudRem) with d-serine, an N-methyl-d-aspartate-type glutamate receptor (NMDAR) glycine-site agonist. We operationalize improved (smaller) thresholds in pitch (frequency) between successive auditory stimuli after AudRem as improved plasticity, and mismatch negativity (MMN) and auditory θ as measures of functional target engagement of both NMDAR agonism and plasticity. Previous studies showed that AudRem alone produces significant, but small cognitive improvements, while d-serine alone improves symptoms and MMN. However, the strongest results for plasticity outcomes (improved pitch thresholds, auditory MMN and θ) were found when combining d-serine and AudRem. AudRem improvements correlated with reading and other auditory cognitive tasks, suggesting plasticity improvements are predictive of functionally relevant outcomes. While d-serine appears to be efficacious for acute AudRem enhancement, the optimal dose remains an open question, as does the ability of combined d-serine + AudRem to produce sustained improvement. In the ongoing R61, 45 schizophrenia patients will be randomized to receive three placebo-controlled, double-blind d-serine + AudRem sessions across three separate 15 subject dose cohorts (80/100/120 mg/kg). Successful completion of the R61 is defined by ≥moderate effect size changes in target engagement and correlation with function, without safety issues. During the three-year R33, we will assess the sustained effects of d-serine + AudRem. In addition to testing a potentially viable treatment, this project will develop a methodology to assess the efficacy of novel NMDAR modulators, using d-serine as a "gold-standard".
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Affiliation(s)
| | - Juliana Glasser
- New York State Psychiatric Institute, New York, NY 10032, USA
| | - Pejman Sehatpour
- New York State Psychiatric Institute, New York, NY 10032, USA,Columbia University, College of Physicians and Surgeons, New York, NY 10032, USA,Nathan Kline Institute, Orangeburg, NY 10962, USA
| | - Dan V. Iosifescu
- Nathan Kline Institute, Orangeburg, NY 10962, USA,NYU Langone Medical Center, New York, NY 10016, USA
| | - Elisa Dias
- Nathan Kline Institute, Orangeburg, NY 10962, USA,NYU Langone Medical Center, New York, NY 10016, USA
| | - Marlene Carlson
- New York State Psychiatric Institute, New York, NY 10032, USA,Columbia University, College of Physicians and Surgeons, New York, NY 10032, USA
| | | | - Tarek Sobeih
- Nathan Kline Institute, Orangeburg, NY 10962, USA
| | - Tse-Hwei Choo
- New York State Psychiatric Institute, New York, NY 10032, USA,Columbia University, College of Physicians and Surgeons, New York, NY 10032, USA
| | - Melanie M. Wall
- New York State Psychiatric Institute, New York, NY 10032, USA,Columbia University, College of Physicians and Surgeons, New York, NY 10032, USA
| | - Lawrence S. Kegeles
- New York State Psychiatric Institute, New York, NY 10032, USA,Columbia University, College of Physicians and Surgeons, New York, NY 10032, USA
| | - James Gangwisch
- New York State Psychiatric Institute, New York, NY 10032, USA,Columbia University, College of Physicians and Surgeons, New York, NY 10032, USA
| | - Megan Mayer
- New York State Psychiatric Institute, New York, NY 10032, USA
| | | | | | | | - Dalton Bermudez
- New York State Psychiatric Institute, New York, NY 10032, USA
| | - Molly Arnold
- Nathan Kline Institute, Orangeburg, NY 10962, USA
| | | | - Amir M. Meftah
- New York State Psychiatric Institute, New York, NY 10032, USA
| | - Melissa Conant
- New York State Psychiatric Institute, New York, NY 10032, USA
| | - Jeffrey A. Lieberman
- New York State Psychiatric Institute, New York, NY 10032, USA,Columbia University, College of Physicians and Surgeons, New York, NY 10032, USA
| | - Joshua T. Kantrowitz
- New York State Psychiatric Institute, New York, NY 10032, USA,Columbia University, College of Physicians and Surgeons, New York, NY 10032, USA,Nathan Kline Institute, Orangeburg, NY 10962, USA,Correspondence: Joshua T. Kantrowitz, ; Tel.: +1-646-774-6738
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15
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Asensio-Aguerri L, Beato-Fernández L, Stavraki M, Rodríguez-Cano T, Bajo M, Díaz D. Paranoid Thinking and Wellbeing. The Role of Doubt in Pharmacological and Metacognitive Therapies. Front Psychol 2019; 10:2099. [PMID: 31572275 PMCID: PMC6751329 DOI: 10.3389/fpsyg.2019.02099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 08/29/2019] [Indexed: 01/07/2023] Open
Abstract
INTRODUCTION Pathological confidence in one's thoughts is a key mechanism of chronic paranoid thinking. For this reason, many of the current therapies focus on trying to reduce it. In fact, the way some antipsychotics (e.g., haloperidol) work seems to be through the induction of doubt. Because of the impact of these pathological thoughts on positive health, studying the well-being of people who experience paranoid thoughts is fundamental. The first objective of this research is to apply the Complete State Model of Health (CSMH) to a sample of patients characterized by the presence of paranoid thinking. Our second objective is to evaluate the impact of therapies based on reducing pathological confidence on patients' well-being. METHODS Sixty participants with SCID-5 confirmed DSM-5 diagnosis related with paranoid thinking and without mood symptoms were recruited. In order to test the existence of a two continua model of mental health (CSMH), we conducted a parallel analysis and an exploratory factor analysis. To test our hypothesis regarding the partially mediating role of doubt between paranoid thinking and patients' well-being, we conducted a biased corrected bootstrapping procedure. RESULTS As expected, two different unipolar dimensions emerged from the measures used to assess paranoid thinking and positive health (two continua model of mental health). When patients received metacognitive and pharmacological treatment, more paranoid thinking led to more doubt in all thoughts, which in turn affected well-being. The analyses carried out confirmed the partial mediating role of doubt. CONCLUSION Despite the efficacy shown by both metacognitive therapies and antipsychotics, it seems that they not only reduce pathological confidence, but can also affect other thoughts not linked to delirium. This effect of generalization of doubt in all thoughts negatively affected patients' well-being and quality of life.
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Affiliation(s)
| | - Luis Beato-Fernández
- Mental Health Unit, Hospital General Universitario de Ciudad Real, Ciudad Real, Spain
- Ciudad Real Medical School, Universidad de Castilla – La Mancha, Ciudad Real, Spain
| | - Maria Stavraki
- Ciudad Real Medical School, Universidad de Castilla – La Mancha, Ciudad Real, Spain
| | - Teresa Rodríguez-Cano
- Mental Health Unit, Hospital General Universitario de Ciudad Real, Ciudad Real, Spain
- Ciudad Real Medical School, Universidad de Castilla – La Mancha, Ciudad Real, Spain
| | - Miriam Bajo
- Ciudad Real Medical School, Universidad de Castilla – La Mancha, Ciudad Real, Spain
| | - Darío Díaz
- Ciudad Real Medical School, Universidad de Castilla – La Mancha, Ciudad Real, Spain
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16
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Attenuated NoGo-related beta desynchronisation and synchronisation in Parkinson's disease revealed by magnetoencephalographic recording. Sci Rep 2019; 9:7235. [PMID: 31076640 PMCID: PMC6510752 DOI: 10.1038/s41598-019-43762-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 05/01/2019] [Indexed: 11/08/2022] Open
Abstract
Parkinson’s disease (PD) is a neurodegenerative disorder characterised by motor abnormalities. Many non-demented patients with PD have cognitive impairment especially in executive functions. Using magnetoencephalographic (MEG) recording combined with event-related desynchronisation/synchronisation (ERD/ERS) analysis, we investigated cortical executive functions during a Go/NoGo task in PD patients and matched healthy subjects. PD patients had a longer reaction time in the Go condition and had a higher error ratio in both Go and NoGo conditions. The MEG analysis showed that the PD patients had a significant reduction in beta ERD during the NoGo condition and in beta ERS during both Go and NoGo conditions compared with the healthy subjects (all p < 0.05). Moreover, in the Go condition, the onsets of beta ERD and ERS were delayed in PD patients. Notably, NoGo ERS was negatively correlated with the Unified Parkinson’s Disease Rating Scale (UPDRS) score in PD patients. The present study demonstrated abnormalities in motor programming, response inhibition, and frontal inhibitory modulation in PD. Further extensive investigations are necessary to confirm the longitudinal treatment responses in PD.
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17
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Kantrowitz JT. N-methyl-d-aspartate-type glutamate receptor modulators and related medications for the enhancement of auditory system plasticity in schizophrenia. Schizophr Res 2019; 207:70-79. [PMID: 29459050 DOI: 10.1016/j.schres.2018.02.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 01/30/2018] [Accepted: 02/02/2018] [Indexed: 12/14/2022]
Abstract
Deficits in N-methyl-d-aspartate-type (NMDAR) function contribute to cognitive deficits in schizophrenia, particularly dysfunction in neuroplasticity, defined as reduced learning during training on exercises that place implicit, increasing demands on early sensory (auditory and visual) information processing. Auditory mismatch negativity (MMN) can be both a target engagement biomarker for the NMDAR and a proxy measure of neurophysiological plasticity. This review covers the evidence for using NMDAR modulator and related compounds for enhancement of cognition, with a particular focus on early auditory processing/plasticity. Compounds covered include glycine site agonists, glycine and system A-type transporter inhibitors, d-amino acid oxidase inhibitors, memantine and nicotinic alpha-7 acetylcholine receptor agonists. As opposed to daily treatment studies focusing on schizophrenia in general, intermittent, non-daily treatment combining NMDAR modulators with neuroplasticity-based paradigms, using MMN as target-engagement biomarkers show promise as treatments to both remediate plasticity deficits and overall functional deficits.
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Affiliation(s)
- Joshua T Kantrowitz
- Schizophrenia Research Center, Nathan Kline Institute for Psychiatric Research, Orangeburg, NY 10962, USA; Division of Experimental Therapeutics, Department of Psychiatry, Columbia University, New York, NY 10032, USA.
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18
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Popov T, Kustermann T, Popova P, Miller GA, Rockstroh B. Oscillatory brain dynamics supporting impaired Stroop task performance in schizophrenia-spectrum disorder. Schizophr Res 2019; 204:146-154. [PMID: 30158065 DOI: 10.1016/j.schres.2018.08.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 07/26/2018] [Accepted: 08/17/2018] [Indexed: 12/12/2022]
Abstract
The Stroop color-word interference task, prompting slower response to color-incongruent than to congruent items, is often used to study neural mechanisms of inhibitory control and dysfunction in schizophrenia-spectrum disorders. Inconsistent findings of an augmented Stroop effect limit identification of relevant dysfunctional mechanism(s) in schizophrenia. The present study sought to advance understanding of normal and impaired neural oscillatory dynamics by distinguishing interference detection and response preparation during the Stroop task in schizophrenia-spectrum disorders via analysis of behavioral performance and 4-7 Hz (theta) and 10-30 Hz (alpha/beta) EEG oscillations in 40 patients (SZ) and 27 healthy comparison participants (HC). SZ responded more slowly and showed less dorsal anterior cingulate (dACC) theta enhancement during INC trials, less enhancement of dACC-sensorimotor cortex connectivity (theta phase synchrony) during INC trials, more alpha/beta suppression though less enhancement of that suppression during INC trials, and slower post-response alpha/beta rebound than did HC. Reaction time distributions showed larger group and Stroop effects during the 25% of trials with the slowest responses. Poorer theta phase coherence in patients indicates impaired communication between regions associated with interference processing (dACC) and response preparation (sensorimotor cortex). Results suggest a failure cascade in which compromised behavioral Stroop effects are driven at least in part by dysfunctional interference processing (less theta power increase) prompting dysfunctional motor response preparation (less alpha/beta power suppression). Inconsistent Stroop effects in past studies of schizophrenia may result from differing task parameters sampling different degrees of Stroop task difficulty.
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Affiliation(s)
- Tzvetan Popov
- Department of Psychology, PO Box 905, University Konstanz, D-78457 Konstanz, Germany
| | - Thomas Kustermann
- Department of Psychology, PO Box 905, University Konstanz, D-78457 Konstanz, Germany; Laboratoire de Recherche en Neuroimagerie (LREN), Department of Clinical Neuroscience, Lausanne University and University Hospital, CH-1011 Lausanne, Switzerland
| | - Petia Popova
- Department of Psychology, PO Box 905, University Konstanz, D-78457 Konstanz, Germany
| | - Gregory A Miller
- Department of Psychology and Department of Psychiatry and Biobehavioral Sciences, UCLA, 1257D Franz Hall, Box 951563, Los Angeles, CA 90095-1563, USA
| | - Brigitte Rockstroh
- Department of Psychology, PO Box 905, University Konstanz, D-78457 Konstanz, Germany.
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19
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Saltuklaroglu T, Bowers A, Harkrider AW, Casenhiser D, Reilly KJ, Jenson DE, Thornton D. EEG mu rhythms: Rich sources of sensorimotor information in speech processing. BRAIN AND LANGUAGE 2018; 187:41-61. [PMID: 30509381 DOI: 10.1016/j.bandl.2018.09.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 09/27/2017] [Accepted: 09/23/2018] [Indexed: 06/09/2023]
Affiliation(s)
- Tim Saltuklaroglu
- Department of Audiology and Speech-Language Pathology, University of Tennessee Health Sciences, Knoxville, TN 37996, USA.
| | - Andrew Bowers
- University of Arkansas, Epley Center for Health Professions, 606 N. Razorback Road, Fayetteville, AR 72701, USA
| | - Ashley W Harkrider
- Department of Audiology and Speech-Language Pathology, University of Tennessee Health Sciences, Knoxville, TN 37996, USA
| | - Devin Casenhiser
- Department of Audiology and Speech-Language Pathology, University of Tennessee Health Sciences, Knoxville, TN 37996, USA
| | - Kevin J Reilly
- Department of Audiology and Speech-Language Pathology, University of Tennessee Health Sciences, Knoxville, TN 37996, USA
| | - David E Jenson
- Department of Speech and Hearing Sciences, Elson S. Floyd College of Medicine, Spokane, WA 99210-1495, USA
| | - David Thornton
- Department of Hearing, Speech, and Language Sciences, Gallaudet University, 800 Florida Avenue NE, Washington, DC 20002, USA
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20
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Ryman SG, El Shaikh AA, Shaff NA, Hanlon FM, Dodd AB, Wertz CJ, Ling JM, Barch DM, Stromberg SF, Lin DS, Abrams S, Mayer AR. Proactive and reactive cognitive control rely on flexible use of the ventrolateral prefrontal cortex. Hum Brain Mapp 2018; 40:955-966. [PMID: 30407681 DOI: 10.1002/hbm.24424] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 08/07/2018] [Accepted: 10/03/2018] [Indexed: 11/05/2022] Open
Abstract
The role of ventral versus dorsolateral prefrontal regions in instantiating proactive and reactive cognitive control remains actively debated, with few studies parsing cue versus probe-related activity. Rapid sampling (460 ms), long cue-probe delays, and advanced analytic techniques (deconvolution) were therefore used to quantify the magnitude and variability of neural responses during the AX Continuous Performance Test (AX-CPT; N = 46) in humans. Behavioral results indicated slower reaction times during reactive cognitive control (AY trials) in conjunction with decreased accuracy and increased variability for proactive cognitive control (BX trials). The anterior insula/ventrolateral prefrontal cortex (aI/VLPFC) was commonly activated across comparisons of both proactive and reactive cognitive control. In contrast, activity within the dorsomedial and dorsolateral prefrontal cortex was limited to reactive cognitive control. The instantiation of proactive cognitive control during the probe period was also associated with sparse neural activation relative to baseline, potentially as a result of the high degree of neural and behavioral variability observed across individuals. Specifically, the variability of the hemodynamic response function (HRF) within motor circuitry increased after the presentation of B relative to A cues (i.e., late in HRF) and persisted throughout the B probe period. Finally, increased activation of right aI/VLPFC during the cue period was associated with decreased motor circuit activity during BX probes, suggesting a possible role for the aI/VLPFC in proactive suppression of neural responses. Considered collectively, current results highlight the flexible role of the VLPFC in implementing cognitive control during the AX-CPT task but suggest large individual differences in proactive cognitive control strategies.
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Affiliation(s)
- Sephira G Ryman
- Department of Psychology, University of New Mexico, Albuquerque, New Mexico.,The Mind Research Network/Lovelace Biomedical and Environmental Research Institute, Albuquerque, New Mexico
| | - Ansam A El Shaikh
- The Mind Research Network/Lovelace Biomedical and Environmental Research Institute, Albuquerque, New Mexico
| | - Nicholas A Shaff
- The Mind Research Network/Lovelace Biomedical and Environmental Research Institute, Albuquerque, New Mexico
| | - Faith M Hanlon
- The Mind Research Network/Lovelace Biomedical and Environmental Research Institute, Albuquerque, New Mexico
| | - Andrew B Dodd
- The Mind Research Network/Lovelace Biomedical and Environmental Research Institute, Albuquerque, New Mexico
| | - Christopher J Wertz
- The Mind Research Network/Lovelace Biomedical and Environmental Research Institute, Albuquerque, New Mexico
| | - Josef M Ling
- The Mind Research Network/Lovelace Biomedical and Environmental Research Institute, Albuquerque, New Mexico
| | - Deanna M Barch
- Department of Psychological and Brain Sciences, Washington University in St. Louis, St. Louis, Missouri
| | - Shannon F Stromberg
- Department of Psychiatry, University of New Mexico School of Medicine, Albuquerque, New Mexico
| | - Denise S Lin
- Department of Psychiatry, University of New Mexico School of Medicine, Albuquerque, New Mexico
| | - Swala Abrams
- Department of Psychiatry, University of New Mexico School of Medicine, Albuquerque, New Mexico
| | - Andrew R Mayer
- Department of Psychology, University of New Mexico, Albuquerque, New Mexico.,The Mind Research Network/Lovelace Biomedical and Environmental Research Institute, Albuquerque, New Mexico.,Department of Psychiatry, University of New Mexico School of Medicine, Albuquerque, New Mexico.,Department of Neurology, University of New Mexico School of Medicine, Albuquerque, New Mexico
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21
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Buard I, Kronberg E, Steinmetz S, Hepburn S, Rojas DC. Neuromagnetic Beta-Band Oscillations during Motor Imitation in Youth with Autism. AUTISM RESEARCH AND TREATMENT 2018; 2018:9035793. [PMID: 30147953 PMCID: PMC6083595 DOI: 10.1155/2018/9035793] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 06/22/2018] [Accepted: 07/12/2018] [Indexed: 12/28/2022]
Abstract
Children with ASD often exhibit early difficulties with action imitation, possibly due to low-level sensory or motor impairments. Impaired cortical rhythms have been demonstrated in adults with ASD during motor imitation. While those oscillations reflect an age-dependent process, they have not been fully investigated in youth with ASD. We collected magnetoencephalography data to examine patterns of oscillatory activity in the mu (8-13 Hz) and beta frequency (15-30 Hz) range in 14 adolescents with and 14 adolescents without ASD during a fine motor imitation task. Typically developing adolescents exhibited adult-like patterns of motor signals, e.g., event-related beta and mu desynchronization (ERD) before and during the movement and a postmovement beta rebound (PMBR) after the movement. In contrast, those with ASD exhibited stronger beta and mu-ERD and reduced PMBR. Behavioral performance was similar between groups despite differences in motor cortical oscillations. Finally, we observed age-related increases in PBMR and beta-ERD in the typically developing children, but this correlation was not present in the autism group. These results suggest reduced inhibitory drive in cortical rhythms in youth with autism during intact motor imitation. Furthermore, impairments in motor brain signals in autism may not be due to delayed brain development. In the context of the excitation-inhibition imbalance perspectives of autism, we offer new insights into altered organization of neurophysiological networks.
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Affiliation(s)
- I. Buard
- Department of Neurology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - E. Kronberg
- Department of Neurology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - S. Steinmetz
- Department of Neurology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - S. Hepburn
- Department of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - D. C. Rojas
- Department of Psychology, Colorado State University, Fort Collins, CO, USA
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22
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Kantrowitz JT, Swerdlow NR, Dunn W, Vinogradov S. Auditory System Target Engagement During Plasticity-Based Interventions in Schizophrenia: A Focus on Modulation of N-Methyl-D-Aspartate-Type Glutamate Receptor Function. BIOLOGICAL PSYCHIATRY. COGNITIVE NEUROSCIENCE AND NEUROIMAGING 2018; 3:581-590. [PMID: 29656951 PMCID: PMC6062454 DOI: 10.1016/j.bpsc.2018.02.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 01/24/2018] [Accepted: 02/12/2018] [Indexed: 12/31/2022]
Abstract
Cognitive deficits are predictive of long-term social and occupational functional deficits in schizophrenia but are currently without gold-standard treatments. In particular, augmentation of auditory cortical neuroplasticity may represent a rate-limiting first step before addressing higher-order cognitive deficits. We review the rationale for N-methyl-d-aspartate-type glutamate receptor (NMDAR) modulators as treatments for auditory plasticity deficits in schizophrenia, along with potential serum and electroencephalographic target engagement biomarkers for NMDAR function. Several recently published NMDAR-modulating treatment studies are covered, involving D-serine, memantine, and transcranial direct current stimulation. While all three interventions appear to modulate auditory plasticity, direct agonists (D-serine) appear to have the largest and most consistent effects on plasticity, at least acutely. We hypothesize that there may be synergistic effects of combining procognitive NMDAR-modulating approaches with auditory cortical neuroplasticity cognitive training interventions. Future studies should assess biomarkers for target engagement and patient stratification, along with head-to-head studies comparing putative interventions and potential long-term versus acute effects.
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Affiliation(s)
- Joshua T Kantrowitz
- Schizophrenia Research Center, Nathan Kline Institute for Psychiatric Research, Orangeburg, New York; Division of Experimental Therapeutics, Department of Psychiatry, Columbia University, New York, New York.
| | - Neal R Swerdlow
- Department of Psychiatry, University of California, San Diego, La Jolla
| | - Walter Dunn
- Department of Psychiatry, University of California, Los Angeles, Los Angeles, California
| | - Sophia Vinogradov
- Department of Psychiatry, University of Minnesota Medical School, Minneapolis, Minnesota
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23
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Curzietti M, Bonnefond A, Staub B, Vidailhet P, Doignon-Camus N. The effects of age on visual expertise for print. BRAIN AND LANGUAGE 2017; 169:48-56. [PMID: 28327370 DOI: 10.1016/j.bandl.2017.03.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 01/03/2017] [Accepted: 03/03/2017] [Indexed: 06/06/2023]
Abstract
Progressive visual processing decline is a known factor in aging. The present study investigates the evolution of visual expertise for printed stimuli with aging. Fifty-five participants of increasing age (20-30, 40-50, 60-70, 75-85years old) were recruited. Behavioral and EEG data were collected during a lexical decision task, in which words and symbol strings were presented. Analyses of EEG data focused mainly on three major points: visual expertise for print, automatization of the expertise and differences in attentional demand between the processing of words and symbols. Results indicated a preservation of visual expertise with age, with larger N170 amplitude for words than for symbols. Moreover, a decrease in stimulus processing speed was observed as a function of age. No difference in attentional demand as a function of stimulus was observed.
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Affiliation(s)
- Maxime Curzietti
- INSERM 1114, Department of Psychiatry, University of Strasbourg, France.
| | - Anne Bonnefond
- INSERM 1114, Department of Psychiatry, University of Strasbourg, France
| | - Bérengère Staub
- INSERM 1114, Department of Psychiatry, University of Strasbourg, France
| | - Pierre Vidailhet
- INSERM 1114, Department of Psychiatry, University of Strasbourg, France
| | - Nadège Doignon-Camus
- LISEC EA 2310, University of Strasbourg, University of Haute-Alsace, University of Lorraine, France
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24
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Kantrowitz JT, Epstein ML, Beggel O, Rohrig S, Lehrfeld JM, Revheim N, Lehrfeld NP, Reep J, Parker E, Silipo G, Ahissar M, Javitt DC. Neurophysiological mechanisms of cortical plasticity impairments in schizophrenia and modulation by the NMDA receptor agonist D-serine. Brain 2017; 139:3281-3295. [PMID: 27913408 DOI: 10.1093/brain/aww262] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 08/20/2016] [Accepted: 08/29/2016] [Indexed: 11/12/2022] Open
Abstract
Schizophrenia is associated with deficits in cortical plasticity that affect sensory brain regions and lead to impaired cognitive performance. Here we examined underlying neural mechanisms of auditory plasticity deficits using combined behavioural and neurophysiological assessment, along with neuropharmacological manipulation targeted at the N-methyl-D-aspartate type glutamate receptor (NMDAR). Cortical plasticity was assessed in a cohort of 40 schizophrenia/schizoaffective patients relative to 42 healthy control subjects using a fixed reference tone auditory plasticity task. In a second cohort (n = 21 schizophrenia/schizoaffective patients, n = 13 healthy controls), event-related potential and event-related time-frequency measures of auditory dysfunction were assessed during administration of the NMDAR agonist d-serine. Mismatch negativity was used as a functional read-out of auditory-level function. Clinical trials registration numbers were NCT01474395/NCT02156908 Schizophrenia/schizoaffective patients showed significantly reduced auditory plasticity versus healthy controls (P = 0.001) that correlated with measures of cognitive, occupational and social dysfunction. In event-related potential/time-frequency analyses, patients showed highly significant reductions in sensory N1 that reflected underlying impairments in θ responses (P < 0.001), along with reduced θ and β-power modulation during retention and motor-preparation intervals. Repeated administration of d-serine led to intercorrelated improvements in (i) auditory plasticity (P < 0.001); (ii) θ-frequency response (P < 0.05); and (iii) mismatch negativity generation to trained versus untrained tones (P = 0.02). Schizophrenia/schizoaffective patients show highly significant deficits in auditory plasticity that contribute to cognitive, occupational and social dysfunction. d-serine studies suggest first that NMDAR dysfunction may contribute to underlying cortical plasticity deficits and, second, that repeated NMDAR agonist administration may enhance cortical plasticity in schizophrenia.
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Affiliation(s)
- Joshua T Kantrowitz
- 1 Schizophrenia Research Center, Nathan Kline Institute, Orangeburg, NY, USA .,2 Division of Experimental Therapeutics, Departments of Psychiatry and Neuroscience, Columbia University, New York, NY, USA
| | - Michael L Epstein
- 1 Schizophrenia Research Center, Nathan Kline Institute, Orangeburg, NY, USA.,3 Graduate Center, City University of New York, New York, NY, USA
| | - Odeta Beggel
- 1 Schizophrenia Research Center, Nathan Kline Institute, Orangeburg, NY, USA
| | - Stephanie Rohrig
- 1 Schizophrenia Research Center, Nathan Kline Institute, Orangeburg, NY, USA
| | - Jonathan M Lehrfeld
- 1 Schizophrenia Research Center, Nathan Kline Institute, Orangeburg, NY, USA
| | - Nadine Revheim
- 1 Schizophrenia Research Center, Nathan Kline Institute, Orangeburg, NY, USA
| | - Nayla P Lehrfeld
- 1 Schizophrenia Research Center, Nathan Kline Institute, Orangeburg, NY, USA
| | - Jacob Reep
- 1 Schizophrenia Research Center, Nathan Kline Institute, Orangeburg, NY, USA
| | - Emily Parker
- 1 Schizophrenia Research Center, Nathan Kline Institute, Orangeburg, NY, USA
| | - Gail Silipo
- 1 Schizophrenia Research Center, Nathan Kline Institute, Orangeburg, NY, USA
| | - Merav Ahissar
- 4 Edmond and Lily Safra Center for Brain Sciences, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Daniel C Javitt
- 1 Schizophrenia Research Center, Nathan Kline Institute, Orangeburg, NY, USA.,2 Division of Experimental Therapeutics, Departments of Psychiatry and Neuroscience, Columbia University, New York, NY, USA
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25
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Alterations in High-Frequency Neuronal Oscillations in a Cynomolgus Macaque Test of Sustained Attention Following NMDA Receptor Antagonism. Neuropsychopharmacology 2016; 41:1319-28. [PMID: 26354045 PMCID: PMC4793115 DOI: 10.1038/npp.2015.281] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 08/11/2015] [Accepted: 09/02/2015] [Indexed: 12/31/2022]
Abstract
A growing body of evidence indicates that neuronal oscillations in the gamma frequency range (30-80 Hz) are disturbed in schizophrenic patients during cognitive processes and may represent an endophenotype of the disease. N-methyl-D-aspartate (NMDA) receptor antagonists have been used experimentally to induce schizophrenia-like symptoms including cognitive deficits in animals and humans. Here we characterized neuronal oscillations and event-related potentials (ERPs) in Cynomolgus macaques fully trained to perform a continuous performance test (CPT) in the presence and absence of the NMDA antagonist phencyclidine (PCP). Macaques (n=8) were trained to touch 'target' stimuli and ignore 'distractor' stimuli presented randomly on a touchscreen. Subsequently, all subjects were implanted with epidural EEG electrodes over frontal (FC) and parietal cortices (PC) and later tested under vehicle (saline, i.m.) or acute PCP (0.1-0.3 mg/kg, i.m.) conditions. Compared with vehicle treatment, PCP produced a significant dose-dependent decrease in CPT performance accuracy and increased reaction times. Furthermore, PCP elevated the amplitudes of 'low' (30-50 Hz) and 'high' (51-80 Hz) gamma oscillations in FC and PC around target presentations for all correct responses. The CPT accuracy was inversely correlated with the gamma band amplitude in the presence of PCP. Additionally, PCP delayed the N100 peak latency in FC, and prolonged and suppressed the cognitively relevant P300 component of mean ERPs in FC and PC, respectively. The NMDA receptor antagonist-induced alteration in neuronal oscillations and ERPs may contribute to the observed cognitive deficits in macaques, and enhance our understanding of EEG recordings as a translatable biomarker.
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26
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Martínez A, Gaspar PA, Hillyard SA, Bickel S, Lakatos P, Dias EC, Javitt DC. Neural oscillatory deficits in schizophrenia predict behavioral and neurocognitive impairments. Front Hum Neurosci 2015; 9:371. [PMID: 26190988 PMCID: PMC4486865 DOI: 10.3389/fnhum.2015.00371] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 06/12/2015] [Indexed: 11/13/2022] Open
Abstract
Paying attention to visual stimuli is typically accompanied by event-related desynchronizations (ERD) of ongoing alpha (7-14 Hz) activity in visual cortex. The present study used time-frequency based analyses to investigate the role of impaired alpha ERD in visual processing deficits in schizophrenia (Sz). Subjects viewed sinusoidal gratings of high (HSF) and low (LSF) spatial frequency (SF) designed to test functioning of the parvo- vs. magnocellular pathways, respectively. Patients with Sz and healthy controls paid attention selectively to either the LSF or HSF gratings which were presented in random order. Event-related brain potentials (ERPs) were recorded to all stimuli. As in our previous study, it was found that Sz patients were selectively impaired at detecting LSF target stimuli and that ERP amplitudes to LSF stimuli were diminished, both for the early sensory-evoked components and for the attend minus unattend difference component (the Selection Negativity), which is generally regarded as a specific index of feature-selective attention. In the time-frequency domain, the differential ERP deficits to LSF stimuli were echoed in a virtually absent theta-band phase locked response to both unattended and attended LSF stimuli (along with relatively intact theta-band activity for HSF stimuli). In contrast to the theta-band evoked responses which were tightly stimulus locked, stimulus-induced desynchronizations of ongoing alpha activity were not tightly stimulus locked and were apparent only in induced power analyses. Sz patients were significantly impaired in the attention-related modulation of ongoing alpha activity for both HSF and LSF stimuli. These deficits correlated with patients' behavioral deficits in visual information processing as well as with visually based neurocognitive deficits. These findings suggest an additional, pathway-independent, mechanism by which deficits in early visual processing contribute to overall cognitive impairment in Sz.
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Affiliation(s)
- Antígona Martínez
- Nathan Kline Institute for Psychiatric Research Orangeburg, NY, USA ; Department of Neurosciences, University of California, San Diego La Jolla, CA, USA
| | - Pablo A Gaspar
- Department of Psychiatry, School of Medicine, ICBM, University of Chile Santiago, Chile
| | - Steven A Hillyard
- Department of Neurosciences, University of California, San Diego La Jolla, CA, USA
| | - Stephan Bickel
- Department of Neurology, Albert Einstein College of Medicine Bronx, NY, USA
| | - Peter Lakatos
- Nathan Kline Institute for Psychiatric Research Orangeburg, NY, USA
| | - Elisa C Dias
- Nathan Kline Institute for Psychiatric Research Orangeburg, NY, USA
| | - Daniel C Javitt
- Nathan Kline Institute for Psychiatric Research Orangeburg, NY, USA ; Columbia University, College of Physician and Surgeons New York, NY, USA
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27
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Javitt DC. Neurophysiological models for new treatment development in schizophrenia: early sensory approaches. Ann N Y Acad Sci 2015; 1344:92-104. [PMID: 25721890 DOI: 10.1111/nyas.12689] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Schizophrenia is a major mental disorder associated with core neurocognitive impairments. The ability to recreate these deficits in animal models is limited, hampering ongoing translational drug development efforts. This paper reviews the use of electroencephalography (EEG)-based neurophysiological measures, such as event-related potentials (ERPs) or event-related spectral perturbations (ERSPs), as novel translational biomarkers for both etiological and treatment development research in neuropsychiatry. In schizophrenia, cognitive impairments manifest as deficits not only in high-level processes, such as working memory or executive processing, but also as deficits in neurophysiological responses to simple auditory and visual stimuli. Moreover, neurophysiological responses can be assessed even in untrained animals and are therefore particularly amenable to translational, cross-species investigation. To date, several sensory-level ERP measures, including auditory mismatch negativity and N1, and visual P1 and steady-state responses, have been validated in both human clinical investigations and animal models. Deficits have been tied to impaired neurotransmission at N-methyl-d-aspartate-type glutamate receptors (NMDARs). Time-frequency analysis of ERSP permits further extension of these findings from physiological to circuit/cellular levels of analysis.
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Affiliation(s)
- Daniel C Javitt
- Department of Psychiatry, Columbia University Medical Center, New York, New York; Nathan S. Kline Institute for Psychiatric Research, Orangeburg, New York
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28
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Silverstein S, Keane BP, Blake R, Giersch A, Green M, Kéri S. Vision in schizophrenia: why it matters. Front Psychol 2015; 6:41. [PMID: 25698992 PMCID: PMC4318337 DOI: 10.3389/fpsyg.2015.00041] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 01/09/2015] [Indexed: 01/14/2023] Open
Affiliation(s)
- Steven Silverstein
- Department of Psychiatry, Robert Wood Johnson Medical School, and University Behavioral Health Care, Rutgers, The State University of New Jersey Piscataway, NJ, USA
| | - Brian P Keane
- Department of Psychiatry, Robert Wood Johnson Medical School, and University Behavioral Health Care, Rutgers, The State University of New Jersey Piscataway, NJ, USA
| | - Randolph Blake
- Department of Psychology, Vanderbilt University Nashville, TN, USA
| | - Anne Giersch
- Department of Psychiatry, University of Strasbourg Strasbourg, France
| | - Michael Green
- Department of Psychiatry and Biobehavioral Sciences, University of California at Los Angeles Los Angeles, CA, USA
| | - Szabolcs Kéri
- Department of Physiology, University of Szeged Szeged, Hungary
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29
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Javitt DC, Freedman R. Sensory processing dysfunction in the personal experience and neuronal machinery of schizophrenia. Am J Psychiatry 2015; 172:17-31. [PMID: 25553496 PMCID: PMC4501403 DOI: 10.1176/appi.ajp.2014.13121691] [Citation(s) in RCA: 263] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Sensory processing deficits, first investigated by Kraepelin and Bleuler as possible pathophysiological mechanisms in schizophrenia, are now being recharacterized in the context of our current understanding of the molecular and neurobiological brain mechanisms involved. The National Institute of Mental Health Research Domain Criteria position these deficits as intermediaries between molecular and cellular mechanisms and clinical symptoms of schizophrenia, such as hallucinations. The prepulse inhibition of startle responses by a weaker preceding tone, the inhibitory gating of response to paired sensory stimuli characterized using the auditory P50 evoked response, and the detection of slight deviations in patterns of sensory stimulation eliciting the cortical mismatch negativity potential demonstrate deficits in early sensory processing mechanisms, whose molecular and neurobiological bases are increasingly well understood. Deficits in sensory processing underlie more complex cognitive dysfunction and are in turn affected by higher-level cognitive difficulties. These deficits are now being used to identify genes involved in familial transmission of schizophrenia and to monitor potentially therapeutic drug effects for both treatment and prevention. This research also provides a clinical reminder that patients' sensory perception of the surrounding world, even during treatment sessions, may differ considerably from others' perceptions. A person's ability to understand and interact effectively with the surrounding world ultimately depends on an underlying sensory experience of it.
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Affiliation(s)
- Daniel C. Javitt
- Division of Experimental Therapeutics, Department of Psychiatry, Program in Cognitive Neuroscience and Schizophrenia, Nathan Kline Institute for Psychiatric Research/Columbia University Medical Center, New York, NY 10032, USA
| | - Robert Freedman
- Department of Psychiatry, University of Colorado Denver School of Medicine, Mail Stop F546, Aurora, CO, 80045, USA
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