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Pedapati EV, Ethridge LE, Liu Y, Liu R, Sweeney JA, DeStefano LA, Miyakoshi M, Razak K, Schmitt LM, Moore DR, Gilbert DL, Wu SW, Smith E, Shaffer RC, Dominick KC, Horn PS, Binder D, Erickson CA. Frontal Cortex Hyperactivation and Gamma Desynchrony in Fragile X Syndrome: Correlates of Auditory Hypersensitivity. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.13.598957. [PMID: 38915683 PMCID: PMC11195233 DOI: 10.1101/2024.06.13.598957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
Fragile X syndrome (FXS) is an X-linked disorder that often leads to intellectual disability, anxiety, and sensory hypersensitivity. While sound sensitivity (hyperacusis) is a distressing symptom in FXS, its neural basis is not well understood. It is postulated that hyperacusis may stem from temporal lobe hyperexcitability or dysregulation in top-down modulation. Studying the neural mechanisms underlying sound sensitivity in FXS using scalp electroencephalography (EEG) is challenging because the temporal and frontal regions have overlapping neural projections that are difficult to differentiate. To overcome this challenge, we conducted EEG source analysis on a group of 36 individuals with FXS and 39 matched healthy controls. Our goal was to characterize the spatial and temporal properties of the response to an auditory chirp stimulus. Our results showed that males with FXS exhibit excessive activation in the frontal cortex in response to the stimulus onset, which may reflect changes in top-down modulation of auditory processing. Additionally, during the chirp stimulus, individuals with FXS demonstrated a reduction in typical gamma phase synchrony, along with an increase in asynchronous gamma power, across multiple regions, most strongly in temporal cortex. Consistent with these findings, we observed a decrease in the signal-to-noise ratio, estimated by the ratio of synchronous to asynchronous gamma activity, in individuals with FXS. Furthermore, this ratio was highly correlated with performance in an auditory attention task. Compared to controls, males with FXS demonstrated elevated bidirectional frontotemporal information flow at chirp onset. The evidence indicates that both temporal lobe hyperexcitability and disruptions in top-down regulation play a role in auditory sensitivity disturbances in FXS. These findings have the potential to guide the development of therapeutic targets and back-translation strategies.
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Affiliation(s)
- Ernest V Pedapati
- Division of Child and Adolescent Psychiatry, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
- Division of Neurology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
- Department of Psychiatry, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Lauren E Ethridge
- Department of Pediatrics, Section on Developmental and Behavioral Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
- Department of Psychology, University of Oklahoma, Norman, OK, United States
| | - Yanchen Liu
- Division of Child and Adolescent Psychiatry, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
| | - Rui Liu
- Division of Child and Adolescent Psychiatry, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
| | - John A Sweeney
- Department of Psychiatry, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Lisa A DeStefano
- Division of Developmental and Behavioral Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
| | - Makoto Miyakoshi
- Division of Child and Adolescent Psychiatry, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
| | - Khaleel Razak
- Department of Psychology, University of California, Riverside, Riverside, CA, United States
| | - Lauren M Schmitt
- Division of Developmental and Behavioral Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - David R Moore
- Communication Sciences Research Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
- Manchester Centre for Audiology and Deafness, University of Manchester, Manchester, UK
| | - Donald L Gilbert
- Division of Neurology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Steve W Wu
- Division of Neurology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Elizabeth Smith
- Division of Developmental and Behavioral Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Rebecca C Shaffer
- Division of Developmental and Behavioral Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Kelli C Dominick
- Division of Child and Adolescent Psychiatry, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
- Department of Psychiatry, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Paul S Horn
- Division of Neurology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
| | - Devin Binder
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, United States
| | - Craig A Erickson
- Division of Child and Adolescent Psychiatry, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
- Department of Psychiatry, University of Cincinnati College of Medicine, Cincinnati, OH, United States
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Manyukhina VO, Rostovtseva EN, Prokofyev AO, Obukhova TS, Schneiderman JF, Stroganova TA, Orekhova EV. Visual gamma oscillations predict sensory sensitivity in females as they do in males. Sci Rep 2021; 11:12013. [PMID: 34103578 PMCID: PMC8187436 DOI: 10.1038/s41598-021-91381-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Accepted: 05/21/2021] [Indexed: 02/05/2023] Open
Abstract
Gamma oscillations are driven by local cortical excitatory (E)-inhibitory (I) loops and may help to characterize neural processing involving excitatory-inhibitory interactions. In the visual cortex reliable gamma oscillations can be recorded with magnetoencephalography (MEG) in the majority of individuals, which makes visual gamma an attractive candidate for biomarkers of brain disorders associated with E/I imbalance. Little is known, however, about if/how these oscillations reflect individual differences in neural excitability and associated sensory/perceptual phenomena. The power of visual gamma response (GR) changes nonlinearly with increasing stimulation intensity: it increases with transition from static to slowly drifting high-contrast grating and then attenuates with further increase in the drift rate. In a recent MEG study we found that the GR attenuation predicted sensitivity to sensory stimuli in everyday life in neurotypical adult men and in men with autism spectrum disorders. Here, we replicated these results in neurotypical female participants. The GR enhancement with transition from static to slowly drifting grating did not correlate significantly with the sensory sensitivity measures. These findings suggest that weak velocity-related attenuation of the GR is a reliable neural concomitant of visual hypersensitivity and that the degree of GR attenuation may provide useful information about E/I balance in the visual cortex.
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Affiliation(s)
- Viktoriya O Manyukhina
- Center for Neurocognitive Research (MEG Center), Moscow State University of Psychology and Education, Moscow, Russian Federation
- National Research University Higher School of Economics, Moscow, Russian Federation
| | - Ekaterina N Rostovtseva
- Center for Neurocognitive Research (MEG Center), Moscow State University of Psychology and Education, Moscow, Russian Federation
| | - Andrey O Prokofyev
- Center for Neurocognitive Research (MEG Center), Moscow State University of Psychology and Education, Moscow, Russian Federation
| | - Tatiana S Obukhova
- Center for Neurocognitive Research (MEG Center), Moscow State University of Psychology and Education, Moscow, Russian Federation
| | - Justin F Schneiderman
- MedTech West and the Institute of Neuroscience and Physiology, Sahlgrenska Academy, The University of Gothenburg, Gothenburg, Sweden
| | - Tatiana A Stroganova
- Center for Neurocognitive Research (MEG Center), Moscow State University of Psychology and Education, Moscow, Russian Federation
| | - Elena V Orekhova
- Center for Neurocognitive Research (MEG Center), Moscow State University of Psychology and Education, Moscow, Russian Federation.
- MedTech West and the Institute of Neuroscience and Physiology, Sahlgrenska Academy, The University of Gothenburg, Gothenburg, Sweden.
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You Y, Correas A, Jao Keehn RJ, Wagner LC, Rosen BQ, Beaton LE, Gao Y, Brocklehurst WT, Fishman I, Müller RA, Marinkovic K. MEG Theta during Lexico-Semantic and Executive Processing Is Altered in High-Functioning Adolescents with Autism. Cereb Cortex 2021; 31:1116-1130. [PMID: 33073290 DOI: 10.1093/cercor/bhaa279] [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: 02/26/2020] [Revised: 08/28/2020] [Accepted: 08/30/2020] [Indexed: 02/06/2023] Open
Abstract
Neuroimaging studies have revealed atypical activation during language and executive tasks in individuals with autism spectrum disorders (ASD). However, the spatiotemporal stages of processing associated with these dysfunctions remain poorly understood. Using an anatomically constrained magnetoencephalography approach, we examined event-related theta oscillations during a double-duty lexical decision task that combined demands on lexico-semantic processing and executive functions. Relative to typically developing peers, high-functioning adolescents with ASD had lower performance accuracy on trials engaging selective semantic retrieval and cognitive control. They showed an early overall theta increase in the left fusiform cortex followed by greater activity in the left-lateralized temporal (starting at ~250 ms) and frontal cortical areas (after ~450 ms) known to contribute to language processing. During response preparation and execution, the ASD group exhibited elevated theta in the anterior cingulate cortex, indicative of greater engagement of cognitive control. Simultaneously increased activity in the ipsilateral motor cortex may reflect a less lateralized and suboptimally organized motor circuitry. Spanning early sensory-specific and late response selection stages, the higher event-related theta responsivity in ASD may indicate compensatory recruitment to offset inefficient lexico-semantic retrieval under cognitively demanding conditions. Together, these findings provide further support for atypical language and executive functions in high-functioning ASD.
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Affiliation(s)
- Yuqi You
- Department of Psychology, San Diego State University, San Diego, CA 92182, USA
| | - Angeles Correas
- Department of Psychology, San Diego State University, San Diego, CA 92182, USA
| | - R Joanne Jao Keehn
- Department of Psychology, San Diego State University, San Diego, CA 92182, USA
| | - Laura C Wagner
- Department of Psychology, San Diego State University, San Diego, CA 92182, USA
| | - Burke Q Rosen
- Department of Neurosciences, University of California San Diego, San Diego, CA 92093, USA
| | - Lauren E Beaton
- Department of Psychology, San Diego State University, San Diego, CA 92182, USA
| | - Yangfeifei Gao
- Department of Psychology, San Diego State University, San Diego, CA 92182, USA.,Joint Doctoral Program in Clinical Psychology, San Diego State University and University of California San Diego, San Diego, CA 92120, USA
| | | | - Inna Fishman
- Department of Psychology, San Diego State University, San Diego, CA 92182, USA.,Joint Doctoral Program in Clinical Psychology, San Diego State University and University of California San Diego, San Diego, CA 92120, USA
| | - Ralph-Axel Müller
- Department of Psychology, San Diego State University, San Diego, CA 92182, USA.,Joint Doctoral Program in Clinical Psychology, San Diego State University and University of California San Diego, San Diego, CA 92120, USA
| | - Ksenija Marinkovic
- Department of Psychology, San Diego State University, San Diego, CA 92182, USA.,Joint Doctoral Program in Clinical Psychology, San Diego State University and University of California San Diego, San Diego, CA 92120, USA.,Department of Radiology, University of California San Diego, San Diego, CA 92093, USA
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Perry G, Taylor NW, Bothwell PCH, Milbourn CC, Powell G, Singh KD. The gamma response to colour hue in humans: Evidence from MEG. PLoS One 2020; 15:e0243237. [PMID: 33332389 PMCID: PMC7746285 DOI: 10.1371/journal.pone.0243237] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 11/17/2020] [Indexed: 11/30/2022] Open
Abstract
It has recently been demonstrated through invasive electrophysiology that visual stimulation with extended patches of uniform colour generates pronounced gamma oscillations in the visual cortex of both macaques and humans. In this study we sought to discover if this oscillatory response to colour can be measured non-invasively in humans using magnetoencephalography. We were able to demonstrate increased gamma (40–70 Hz) power in response to full-screen stimulation with four different colour hues and found that the gamma response is particularly strong for long wavelength (i.e. red) stimulation, as was found in previous studies. However, we also found that gamma power in response to colour was generally weaker than the response to an identically sized luminance-defined grating. We also observed two additional responses in the gamma frequency: a lower frequency response around 25–35 Hz that showed fewer clear differences between conditions than the gamma response, and a higher frequency response around 70–100 Hz that was present for red stimulation but not for other colours. In a second experiment we sought to test whether differences in the gamma response between colour hues could be explained by their chromatic separation from the preceding display. We presented stimuli that alternated between each of the three pairings of the three primary colours (red, green, blue) at two levels of chromatic separation defined in the CIELUV colour space. We observed that the gamma response was significantly greater to high relative to low chromatic separation, but that at each level of separation the response was greater for both red-blue and red-green than for blue-green stimulation. Our findings suggest that the stronger gamma response to red stimulation cannot be wholly explained by the chromatic separation of the stimuli.
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Affiliation(s)
- Gavin Perry
- Cardiff University Brain Research Imaging Centre (CUBRIC), School of Psychology, Cardiff University, Cardiff, United Kingdom
| | - Nathan W Taylor
- Cardiff University Brain Research Imaging Centre (CUBRIC), School of Psychology, Cardiff University, Cardiff, United Kingdom
| | - Philippa C H Bothwell
- Cardiff University Brain Research Imaging Centre (CUBRIC), School of Psychology, Cardiff University, Cardiff, United Kingdom
| | - Colette C Milbourn
- Cardiff University Brain Research Imaging Centre (CUBRIC), School of Psychology, Cardiff University, Cardiff, United Kingdom
| | - Georgina Powell
- Cardiff University Brain Research Imaging Centre (CUBRIC), School of Psychology, Cardiff University, Cardiff, United Kingdom
| | - Krish D Singh
- Cardiff University Brain Research Imaging Centre (CUBRIC), School of Psychology, Cardiff University, Cardiff, United Kingdom
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Orekhova EV, Prokofyev AO, Nikolaeva AY, Schneiderman JF, Stroganova TA. Additive effect of contrast and velocity suggests the role of strong excitatory drive in suppression of visual gamma response. PLoS One 2020; 15:e0228937. [PMID: 32053681 PMCID: PMC7018047 DOI: 10.1371/journal.pone.0228937] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 01/27/2020] [Indexed: 11/19/2022] Open
Abstract
It is commonly acknowledged that gamma-band oscillations arise from interplay between neural excitation and inhibition; however, the neural mechanisms controlling the power of stimulus-induced gamma responses (GR) in the human brain remain poorly understood. A moderate increase in velocity of drifting gratings results in GR power enhancement, while increasing the velocity beyond some 'transition point' leads to GR power attenuation. We tested two alternative explanations for this nonlinear input-output dependency in the GR power. First, the GR power can be maximal at the preferable velocity/temporal frequency of motion-sensitive V1 neurons. This 'velocity tuning' hypothesis predicts that lowering contrast either will not affect the transition point or shift it to a lower velocity. Second, the GR power attenuation at high velocities of visual motion can be caused by changes in excitation/inhibition balance with increasing excitatory drive. Since contrast and velocity both add to excitatory drive, this 'excitatory drive' hypothesis predicts that the 'transition point' for low-contrast gratings would be reached at a higher velocity, as compared to high-contrast gratings. To test these alternatives, we recorded magnetoencephalography during presentation of low (50%) and high (100%) contrast gratings drifting at four velocities. We found that lowering contrast led to a highly reliable shift of the GR suppression transition point to higher velocities, thus supporting the excitatory drive hypothesis. No effects of contrast or velocity were found in the alpha-beta range. The results have implications for understanding the mechanisms of gamma oscillations and developing gamma-based biomarkers of disturbed excitation/inhibition balance in brain disorders.
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Affiliation(s)
- Elena V. Orekhova
- Moscow State University of Psychology and Education, Center for Neurocognitive Research (MEG Center), Moscow, Russia
- University of Gothenburg, Sahlgrenska Academy, Institute of Neuroscience &Physiology, Department of Clinical Neuroscience, Gothenburg, Sweden
- MedTech West, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Andrey O. Prokofyev
- Moscow State University of Psychology and Education, Center for Neurocognitive Research (MEG Center), Moscow, Russia
| | - Anastasia Yu. Nikolaeva
- Moscow State University of Psychology and Education, Center for Neurocognitive Research (MEG Center), Moscow, Russia
| | - Justin F. Schneiderman
- University of Gothenburg, Sahlgrenska Academy, Institute of Neuroscience &Physiology, Department of Clinical Neuroscience, Gothenburg, Sweden
- MedTech West, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Tatiana A. Stroganova
- Moscow State University of Psychology and Education, Center for Neurocognitive Research (MEG Center), Moscow, Russia
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Orekhova EV, Stroganova TA, Schneiderman JF, Lundström S, Riaz B, Sarovic D, Sysoeva OV, Brant G, Gillberg C, Hadjikhani N. Neural gain control measured through cortical gamma oscillations is associated with sensory sensitivity. Hum Brain Mapp 2019; 40:1583-1593. [PMID: 30549144 DOI: 10.1002/hbm.24469] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 10/21/2018] [Accepted: 10/29/2018] [Indexed: 12/17/2022] Open
Abstract
Gamma oscillations facilitate information processing by shaping the excitatory input/output of neuronal populations. Recent studies in humans and nonhuman primates have shown that strong excitatory drive to the visual cortex leads to suppression of induced gamma oscillations, which may reflect inhibitory-based gain control of network excitation. The efficiency of the gain control measured through gamma oscillations may in turn affect sensory sensitivity in everyday life. To test this prediction, we assessed the link between self-reported sensitivity and changes in magneto-encephalographic gamma oscillations as a function of motion velocity of high-contrast visual gratings. The induced gamma oscillations increased in frequency and decreased in power with increasing stimulation intensity. As expected, weaker suppression of the gamma response correlated with sensory hypersensitivity. Robustness of this result was confirmed by its replication in the two samples: neurotypical subjects and people with autism, who had generally elevated sensory sensitivity. We conclude that intensity-related suppression of gamma response is a promising biomarker of homeostatic control of the excitation-inhibition balance in the visual cortex.
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Affiliation(s)
- Elena V Orekhova
- Gillberg Neuropsychiatry Centre (GNC), University of Gothenburg, Gothenburg, Sweden.,Moscow State University of Psychology and Education, Center for Neurocognitive Research (MEG Center), Moscow, Russia.,Autism Research Laboratory, Moscow State University of Psychology and Education, Moscow, Russia
| | - Tatiana A Stroganova
- Moscow State University of Psychology and Education, Center for Neurocognitive Research (MEG Center), Moscow, Russia.,Autism Research Laboratory, Moscow State University of Psychology and Education, Moscow, Russia
| | - Justin F Schneiderman
- Department of Clinical Neurophysiology, University of Gothenburg, Institute of Neuroscience & Physiology, Gothenburg, Sweden.,Chalmers University of Technology and MedTech West, Gothenburg, Sweden
| | - Sebastian Lundström
- Gillberg Neuropsychiatry Centre (GNC), University of Gothenburg, Gothenburg, Sweden
| | - Bushra Riaz
- Department of Clinical Neurophysiology, University of Gothenburg, Institute of Neuroscience & Physiology, Gothenburg, Sweden
| | - Darko Sarovic
- Gillberg Neuropsychiatry Centre (GNC), University of Gothenburg, Gothenburg, Sweden
| | - Olga V Sysoeva
- Moscow State University of Psychology and Education, Center for Neurocognitive Research (MEG Center), Moscow, Russia.,Autism Research Laboratory, Moscow State University of Psychology and Education, Moscow, Russia
| | - Georg Brant
- Chalmers University of Technology and MedTech West, Gothenburg, Sweden
| | - Christopher Gillberg
- Gillberg Neuropsychiatry Centre (GNC), University of Gothenburg, Gothenburg, Sweden
| | - Nouchine Hadjikhani
- Gillberg Neuropsychiatry Centre (GNC), University of Gothenburg, Gothenburg, Sweden.,MGH/MIT/HST Martinos Center for Biomedical Imaging, Harvard Medical School, Charlestown, Massachusetts
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