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Boetzel C, Stecher HI, Herrmann CS. Aligning Event-Related Potentials with Transcranial Alternating Current Stimulation for Modulation-a Review. Brain Topogr 2024:10.1007/s10548-024-01055-1. [PMID: 38689065 DOI: 10.1007/s10548-024-01055-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Accepted: 04/18/2024] [Indexed: 05/02/2024]
Abstract
This review aims to demonstrate the connections between event-related potentials (ERPs), event-related oscillations (EROs), and non-invasive brain stimulation (NIBS), with a specific focus on transcranial alternating current stimulation (tACS). We begin with a short examination and discussion of the relation between ERPs and EROs. Then, we investigate the diverse fields of NIBS, highlighting tACS as a potent tool for modulating neural oscillations and influencing cognitive performance. Emphasizing the impact of tACS on individual ERP components, this article offers insights into the potential of conventional tACS for targeted stimulation of single ERP components. Furthermore, we review recent articles that explore a novel approach of tACS: ERP-aligned tACS. This innovative technique exploits the temporal precision of ERP components, aligning tACS with specific neural events to optimize stimulation effects and target the desired neural response. In conclusion, this review combines current knowledge to explore how ERPs, EROs, and NIBS interact, particularly highlighting the modulatory possibilities offered by tACS. The incorporation of ERP-aligned tACS introduces new opportunities for future research, advancing our understanding of the complex connection between neural oscillations and cognitive processes.
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Affiliation(s)
- Cindy Boetzel
- Experimental Psychology Lab, Department of Psychology, European Medical School, Cluster for Excellence "Hearing for All", Carl Von Ossietzky University, Ammerländer Heerstr. 114 - 118, 26129, Oldenburg, Germany
| | - Heiko I Stecher
- Experimental Psychology Lab, Department of Psychology, European Medical School, Cluster for Excellence "Hearing for All", Carl Von Ossietzky University, Ammerländer Heerstr. 114 - 118, 26129, Oldenburg, Germany
| | - Christoph S Herrmann
- Experimental Psychology Lab, Department of Psychology, European Medical School, Cluster for Excellence "Hearing for All", Carl Von Ossietzky University, Ammerländer Heerstr. 114 - 118, 26129, Oldenburg, Germany.
- Neuroimaging Unit, European Medical School, Carl Von Ossietzky University, Oldenburg, Germany.
- Research Center Neurosensory Science, Carl Von Ossietzky University, Oldenburg, Germany.
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Gafoor SA, Uppunda AK. Sensory Gating in the Auditory System: Classical and Novel Stimulus Paradigms. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2024; 67:989-1001. [PMID: 38386055 DOI: 10.1044/2023_jslhr-22-00680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
PURPOSE Sensory gating is a phenomenon where the cortical response to the second stimulus in a pair of identical stimuli is inhibited. It is most often assessed in a conditioning-testing paradigm. Both active and passive neuronal mechanisms have been implicated in sensory gating. The present study aimed to assess if sensory gating is caused by an active neural mechanism associated with stimulus redundancy. METHOD The study was carried out on 20 young neurotypical adults. We assessed the gating phenomenon using identical and nonidentical stimuli pairs presented in an electrophysiological conditioning-testing paradigm. We hypothesized that the novel stimulus in the nonidentical stimulus pair would not exhibit the sensory gating effects (reduction in the amplitude of cortical potentials to the second stimuli in the pair), owing to stimulus novelty. RESULTS Contrary to our expectations, the response analyses of the cortical auditory evoked potentials revealed that adults gated repetitive and novel stimuli similarly. CONCLUSIONS The findings are discussed in relation to the significance of methodological factors in evaluating sensory gating. We believe that additional research using oddball presentation of novel stimuli along with appropriate analysis methods is necessary before drawing any conclusions on the mechanisms underlying sensory gating.
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Affiliation(s)
- Shezeen Abdul Gafoor
- Department of Audiology and Center for Hearing Science, All India Institute of Speech and Hearing, Mysore
| | - Ajith Kumar Uppunda
- Department of Audiology and Center for Hearing Science, All India Institute of Speech and Hearing, Mysore
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3
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Slugocki C, Kuk F, Korhonen P. Cortical sensory gating and reactions to dynamic speech-in-noise in older normal-hearing and hearing-impaired adults. Int J Audiol 2024:1-10. [PMID: 38334072 DOI: 10.1080/14992027.2024.2311663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 01/23/2024] [Indexed: 02/10/2024]
Abstract
OBJECTIVE To examine whether cortical sensory gating predicts how older adults with and without hearing loss perform the Tracking of Noise Tolerance (TNT) test. DESIGN Single-blind mixed design. TNT performance was defined by average tolerated noise relative to speech levels (TNTAve) and by an average range of noise levels over a two-minute trial (excursion). Sensory gating of P1-N1-P2 components was measured using pairs of 1 kHz tone pips. STUDY SAMPLE Twenty-three normal-hearing (NH) and 16 hearing-impaired (HI) older adults with a moderate-to-severe degree of sensorineural hearing loss. RESULTS NH listeners tolerated significantly more noise than HI listeners, but the two groups did not differ in their excursion. Both NH and HI listeners exhibited significant gating of P1 amplitudes and N1P2 peak-to-peak amplitudes with no difference in gating magnitudes between listener groups. Sensory gating magnitudes of P1 and N1P2 did not predict TNTAve scores, but N1P2 gating negatively predicted excursion after accounting for listener age and hearing thresholds. CONCLUSIONS Listeners' reactivity to a roving noise (excursion), but not their average noise tolerance (TNTAve), was predicted by sensory gating at N1P2 generators. These results suggest that temporal aspects of speech-in-noise processing may be affected by declines in the central inhibition of older adults.
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Affiliation(s)
- Christopher Slugocki
- Office of Research in Clinical Amplification (ORCA-USA), WS Audiology, Lisle, IL, USA
| | - Francis Kuk
- Office of Research in Clinical Amplification (ORCA-USA), WS Audiology, Lisle, IL, USA
| | - Petri Korhonen
- Office of Research in Clinical Amplification (ORCA-USA), WS Audiology, Lisle, IL, USA
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Ralston L, Campbell J, Gilley P, Nielson M, Brown K. Sensory Gating Networks in Normal-Hearing Adults With Minimal Tinnitus. Am J Audiol 2024:1-11. [PMID: 38241669 DOI: 10.1044/2023_aja-23-00122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2024] Open
Abstract
PURPOSE The goal of this study was to observe sensory gating-related networks underlying cortical auditory evoked potential (CAEP) peak components in individuals with and without minimal tinnitus, as measured using the Tinnitus Handicap Inventory (THI). This analysis was performed on previously published sensory gating responses in normal-hearing adults with and without minimal tinnitus. METHOD Independent component analysis was performed for each individual CAEP gating component (Pa, P50, N1, and P2). Significant components were retained for source localization analyses within the following groups: no tinnitus, tinnitus with a THI score ≤ 6, and tinnitus with a THI score > 6. Brain source localization was performed on the gating difference wave for each component using standardized low-resolution brain electromagnetic tomography. RESULTS Gating-related networks were identified within each group. Different regional sources were observed between groups, with parietal sources underlying the Pa and P50 components as tinnitus severity increased. A larger prefrontal regional activation was also shown for the N1 gating component as tinnitus severity increased. These results expand upon the functional gating responses via CAEP waveforms in a previously published study. CONCLUSIONS The auditory gating response, as measured via CAEPs, has previously been shown to significantly correlate with an increase in tinnitus severity in adults with normal hearing. The corresponding changes in the gating response appear to be supported by different cortical regions in those without tinnitus, those with a THI score ≤ 6, and those with a THI score > 6. Next, functional differences between localized cortical regions should be tested.
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Affiliation(s)
- Lauren Ralston
- Department of Speech, Language and Hearing Sciences, Moody College of Communication, The University of Texas at Austin
- Central Sensory Processes Laboratory, Austin, TX
| | - Julia Campbell
- Department of Speech, Language and Hearing Sciences, Moody College of Communication, The University of Texas at Austin
- Central Sensory Processes Laboratory, Austin, TX
| | - Phillip Gilley
- Institute of Cognitive Science, The University of Colorado at Boulder
| | - Mashhood Nielson
- Department of Speech, Language and Hearing Sciences, Moody College of Communication, The University of Texas at Austin
- Central Sensory Processes Laboratory, Austin, TX
| | - Kristopher Brown
- Department of Speech, Language and Hearing Sciences, Moody College of Communication, The University of Texas at Austin
- Central Sensory Processes Laboratory, Austin, TX
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Zora H, Wester J, Csépe V. Predictions about prosody facilitate lexical access: Evidence from P50/N100 and MMN components. Int J Psychophysiol 2023; 194:112262. [PMID: 37924955 DOI: 10.1016/j.ijpsycho.2023.112262] [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: 06/17/2023] [Revised: 08/23/2023] [Accepted: 10/28/2023] [Indexed: 11/06/2023]
Abstract
Research into the neural foundation of perception asserts a model where top-down predictions modulate the bottom-up processing of sensory input. Despite becoming increasingly influential in cognitive neuroscience, the precise account of this predictive coding framework remains debated. In this study, we aim to contribute to this debate by investigating how predictions about prosody facilitate speech perception, and to shed light especially on lexical access influenced by simultaneous predictions in different domains, inter alia, prosodic and semantic. Using a passive auditory oddball paradigm, we examined neural responses to prosodic changes, leading to a semantic change as in Dutch nouns canon ['kaːnɔn] 'canon' vs kanon [kaː'nɔn] 'cannon', and used acoustically identical pseudowords as controls. Results from twenty-eight native speakers of Dutch (age range 18-32 years) indicated an enhanced P50/N100 complex to prosodic change in pseudowords as well as an MMN response to both words and pseudowords. The enhanced P50/N100 response to pseudowords is claimed to indicate that all relevant auditory information is still processed by the brain, whereas the reduced response to words might reflect the suppression of information that has already been encoded. The MMN response to pseudowords and words, on the other hand, is best justified by the unification of previously established prosodic representations with sensory and semantic input respectively. This pattern of results is in line with the predictive coding framework acting on multiple levels and is of crucial importance to indicate that predictions about linguistic prosodic information are utilized by the brain as early as 50 ms.
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Affiliation(s)
- Hatice Zora
- Max Planck Institute for Psycholinguistics, P.O. Box 310 6500, AH, Nijmegen, the Netherlands.
| | - Janniek Wester
- Max Planck Institute for Psycholinguistics, P.O. Box 310 6500, AH, Nijmegen, the Netherlands
| | - Valéria Csépe
- HUN-REN Research Centre of Natural Sciences, Brain Imaging Centre, P.O. Box 286 1519, Budapest, Hungary
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Kalina A, Jezdik P, Fabera P, Marusic P, Hammer J. Electrical Source Imaging of Somatosensory Evoked Potentials from Intracranial EEG Signals. Brain Topogr 2023; 36:835-853. [PMID: 37642729 DOI: 10.1007/s10548-023-00994-5] [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: 09/06/2022] [Accepted: 07/24/2023] [Indexed: 08/31/2023]
Abstract
Stereoelectroencephalography (SEEG) records electrical brain activity with intracerebral electrodes. However, it has an inherently limited spatial coverage. Electrical source imaging (ESI) infers the position of the neural generators from the recorded electric potentials, and thus, could overcome this spatial undersampling problem. Here, we aimed to quantify the accuracy of SEEG ESI under clinical conditions. We measured the somatosensory evoked potential (SEP) in SEEG and in high-density EEG (HD-EEG) in 20 epilepsy surgery patients. To localize the source of the SEP, we employed standardized low resolution brain electromagnetic tomography (sLORETA) and equivalent current dipole (ECD) algorithms. Both sLORETA and ECD converged to similar solutions. Reflecting the large differences in the SEEG implantations, the localization error also varied in a wide range from 0.4 to 10 cm. The SEEG ESI localization error was linearly correlated with the distance from the putative neural source to the most activated contact. We show that it is possible to obtain reliable source reconstructions from SEEG under realistic clinical conditions, provided that the high signal fidelity recording contacts are sufficiently close to the source of the brain activity.
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Affiliation(s)
- Adam Kalina
- Department of Neurology, Second Faculty of Medicine, Charles University and Motol University Hospital (Full Member of the ERN EpiCARE), V Uvalu 84, 150 06, Prague 5, Czechia.
| | - Petr Jezdik
- Department of Measurement, Faculty of Electrical Engineering, Czech Technical University in Prague, Technicka 2, 166 27, Prague 6, Czechia
| | - Petr Fabera
- Department of Neurology, Second Faculty of Medicine, Charles University and Motol University Hospital (Full Member of the ERN EpiCARE), V Uvalu 84, 150 06, Prague 5, Czechia
| | - Petr Marusic
- Department of Neurology, Second Faculty of Medicine, Charles University and Motol University Hospital (Full Member of the ERN EpiCARE), V Uvalu 84, 150 06, Prague 5, Czechia
| | - Jiri Hammer
- Department of Neurology, Second Faculty of Medicine, Charles University and Motol University Hospital (Full Member of the ERN EpiCARE), V Uvalu 84, 150 06, Prague 5, Czechia.
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Miller SE, Anderson C, Montou O, Lam BPW, Schafer E. Neural Mechanisms of the Acceptable Noise Level. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2023; 66:765-774. [PMID: 36724767 DOI: 10.1044/2022_jslhr-22-00382] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
PURPOSE The present brain-behavior study examined whether sensory registration or neural inhibition processes explained variability in the behavioral most comfortable level (MCL) and background noise level (BNL) components of the acceptable noise level (ANL) measure. METHOD A traditional auditory gating paradigm was used to evoke neural responses to pairs of pure-tone stimuli in 32 adult listeners with normal hearing. Relationships between behavioral ANL, MCL, and BNL components and cortical responses to each of the paired stimuli were analyzed using linear mixed-effects regression analyses. RESULTS Neural responses elicited by Stimulus 2 in the gating paradigm significantly predicted the computed ANL response. The MCL component was significantly associated with responses elicited by Stimulus 1 of the pair. The BNL component of the ANL was significantly associated with neural responses to both Stimulus 1 and Stimulus 2. CONCLUSIONS The results suggest neural processes related to neural inhibition support the ANL and BNL component while neural stimulus registration properties are associated with the MCL a listener chooses. These findings suggest that differential neural mechanisms underlie the separate MCL and BNL components of the ANL response.
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Affiliation(s)
- Sharon E Miller
- Department of Audiology and Speech-Language Pathology, University of North Texas, Denton
| | | | - Olivia Montou
- Department of Audiology and Speech-Language Pathology, University of North Texas, Denton
| | - Boji P W Lam
- Department of Audiology and Speech-Language Pathology, University of North Texas, Denton
| | - Erin Schafer
- Department of Audiology and Speech-Language Pathology, University of North Texas, Denton
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8
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Campbell J, Rouse R, Nielsen M, Potter S. Sensory Inhibition and Speech Perception-in-Noise Performance in Children With Normal Hearing. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2023; 66:382-399. [PMID: 36480698 DOI: 10.1044/2022_jslhr-22-00077] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
PURPOSE This study investigated whether sensory inhibition in children may be associated with speech perception-in-noise performance. Additionally, gating networks associated with sensory inhibition were identified via standardized low-resolution brain electromagnetic tomography (sLORETA), and the detectability of the cortical auditory evoked potential (CAEP) N1 response was enhanced using a 4- to 30-Hz bandpass filter. METHOD CAEP gating responses, reflective of inhibition, were evoked via click pairs and recorded using high-density electroencephalography in neurotypical 5- to 8-year-olds and 22- to 24-year-olds. Amplitude gating indices were calculated and correlated with speech perception in noise. Gating generators were estimated using sLORETA. A 4- to 30-Hz filter was applied to detect the N1 gating component. RESULTS Preliminary findings indicate children showed reduced gating, but there was a correlational trend between better speech perception and decreased N2 gating. Commensurate with decreased gating, children presented with incomplete compensatory gating networks. The 4- to 30-Hz filter identified the N1 response in a subset of children. CONCLUSIONS There was a tenuous relationship between children's speech perception and sensory inhibition. This may suggest that sensory inhibition is only implicated in atypically poor speech perception. Finally, the 4- to 30-Hz filter settings are critical in N1 detectability. SIGNIFICANCE Gating may help evaluate reduced sensory inhibition in children with clinically poor speech perception using the appropriate methodology. Cortical gating generators in typically developing children are also newly identified.
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Affiliation(s)
- Julia Campbell
- Central Sensory Processes Laboratory, Department of Speech, Language, and Hearing Sciences, The University of Texas at Austin
| | - Rixon Rouse
- Central Sensory Processes Laboratory, Department of Speech, Language, and Hearing Sciences, The University of Texas at Austin
| | - Mashhood Nielsen
- Central Sensory Processes Laboratory, Department of Speech, Language, and Hearing Sciences, The University of Texas at Austin
| | - Sheri Potter
- Central Sensory Processes Laboratory, Department of Speech, Language, and Hearing Sciences, The University of Texas at Austin
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Tapper A, Staines WR, Niechwiej-Szwedo E. EEG reveals deficits in sensory gating and cognitive processing in asymptomatic adults with a history of concussion. Brain Inj 2022; 36:1266-1279. [PMID: 36071612 DOI: 10.1080/02699052.2022.2120210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Individuals with a concussion history tend to perform worse on dual-tasks compared controls but the underlying neural mechanisms contributing to these deficits are not understood. This study used event-related potentials (ERPs) to investigate sensory gating and cognitive processing in athletes with and without a history of concussion while they performed a challenging dual-task. METHODS We recorded sensory (P50, N100) and cognitive (P300) ERPs in 30 athletes (18 no previous concussion; 12 history of concussion) while they simultaneously performed an auditory oddball task and a working memory task that progressively increased in difficulty. RESULTS The concussion group had reduced auditory performance as workload increased compared to the no-concussion group. Sensory gating and cognitive processing were reduced in the concussion group indicating problems with filtering relevant from irrelevant information and appropriately allocating resources. Sensory gating (N100) was positively correlated with cognitive processing (P300) at the hardest workload in the no-concussion group but negatively correlated in the concussion group. CONCLUSION Concussions result in long-term problems in behavioral performance, which may be due to poorer sensory gating that impacts cognitive processing. SIGNIFICANCE Problems effectively gating sensory information may influence the availability or allocation of attention at the cognitive stage in those with a concussion.
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Affiliation(s)
- Anthony Tapper
- Department of Kinesiology, University of Waterloo, Waterloo, Canada
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10
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Wilde M, Constantin L, Thorne PR, Montgomery JM, Scott EK, Cheyne JE. Auditory processing in rodent models of autism: a systematic review. J Neurodev Disord 2022; 14:48. [PMID: 36042393 PMCID: PMC9429780 DOI: 10.1186/s11689-022-09458-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 08/07/2022] [Indexed: 11/19/2022] Open
Abstract
Autism is a complex condition with many traits, including differences in auditory sensitivity. Studies in human autism are plagued by the difficulty of controlling for aetiology, whereas studies in individual rodent models cannot represent the full spectrum of human autism. This systematic review compares results in auditory studies across a wide range of established rodent models of autism to mimic the wide range of aetiologies in the human population. A search was conducted in the PubMed and Web of Science databases to find primary research articles in mouse or rat models of autism which investigate central auditory processing. A total of 88 studies were included. These used non-invasive measures of auditory function, such as auditory brainstem response recordings, cortical event-related potentials, electroencephalography, and behavioural tests, which are translatable to human studies. They also included invasive measures, such as electrophysiology and histology, which shed insight on the origins of the phenotypes found in the non-invasive studies. The most consistent results across these studies were increased latency of the N1 peak of event-related potentials, decreased power and coherence of gamma activity in the auditory cortex, and increased auditory startle responses to high sound levels. Invasive studies indicated loss of subcortical inhibitory neurons, hyperactivity in the lateral superior olive and auditory thalamus, and reduced specificity of responses in the auditory cortex. This review compares the auditory phenotypes across rodent models and highlights those that mimic findings in human studies, providing a framework and avenues for future studies to inform understanding of the auditory system in autism.
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Affiliation(s)
- Maya Wilde
- The Queensland Brain Institute, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Lena Constantin
- The Queensland Brain Institute, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Peter R Thorne
- Department of Physiology, Faculty of Medical and Health Sciences, Centre for Brain Research, University of Auckland, Auckland, New Zealand.,Section of Audiology, School of Population Health, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Johanna M Montgomery
- Department of Physiology, Faculty of Medical and Health Sciences, Centre for Brain Research, University of Auckland, Auckland, New Zealand
| | - Ethan K Scott
- The Queensland Brain Institute, The University of Queensland, Brisbane, QLD, 4072, Australia.,Department of Anatomy and Physiology, School of Biomedical Sciences, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Juliette E Cheyne
- Department of Physiology, Faculty of Medical and Health Sciences, Centre for Brain Research, University of Auckland, Auckland, New Zealand.
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Proshin AT. Comparative Analysis of Dopaminergic and Cholinergic Mechanisms of Sensory and Sensorimotor Gating in Healthy Individuals and in Patients With Schizophrenia. Front Behav Neurosci 2022; 16:887312. [PMID: 35846783 PMCID: PMC9282644 DOI: 10.3389/fnbeh.2022.887312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 06/01/2022] [Indexed: 11/13/2022] Open
Abstract
Sensory and sensorimotor gating provide the early processing of information under conditions of rapid presentation of multiple stimuli. Gating deficiency is observed in various psychopathologies, in particular, in schizophrenia. However, there is also a significant proportion of people in the general population with low filtration rates who do not show any noticeable cognitive decline. The review article presents a comparative analysis of existing data on the peculiarities of cholinergic and dopaminergic mechanisms associated with lowering gating in healthy individuals and in patients with schizophrenia. The differences in gating mechanisms in cohorts of healthy individuals and those with schizophrenia are discussed.
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12
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Neurophysiology in psychosis: The quest for disease biomarkers. Transl Psychiatry 2022; 12:100. [PMID: 35277479 PMCID: PMC8917164 DOI: 10.1038/s41398-022-01860-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 02/14/2022] [Accepted: 02/18/2022] [Indexed: 01/11/2023] Open
Abstract
Psychotic disorders affect 3% of the population at some stage in life, are a leading cause of disability, and impose a great economic burden on society. Major breakthroughs in the genetics of psychosis have not yet been matched by an understanding of its neurobiology. Biomarkers of perception and cognition obtained through non-invasive neurophysiological tools, especially EEG, offer a unique opportunity to gain mechanistic insights. Techniques for measuring neurophysiological markers are inexpensive and ubiquitous, thus having the potential as an accessible tool for patient stratification towards early treatments leading to better outcomes. In this paper, we review the literature on neurophysiological markers for psychosis and their relevant disease mechanisms, mainly covering event-related potentials including P50/N100 sensory gating, mismatch negativity, and the N100 and P300 waveforms. While several neurophysiological deficits are well established in patients with psychosis, more research is needed to study neurophysiological markers in their unaffected relatives and individuals at clinical high risk. We need to harness EEG to investigate markers of disease risk as key steps to elucidate the aetiology of psychosis and facilitate earlier detection and treatment.
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Chang Q, Li C, Zhang J, Wang C. Dynamic brain functional network based on EEG microstate during sensory gating in schizophrenia. J Neural Eng 2022; 19. [PMID: 35130537 DOI: 10.1088/1741-2552/ac5266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 02/07/2022] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Cognitive impairment is one of the core symptoms of schizophrenia, with an emphasis on dysfunctional information processing. Sensory gating deficits have consistently been reported in schizophrenia, but the underlying physiological mechanism is not well-understood. We report the discovery and characterization of P50 dynamic brain connections based on microstate analysis. APPROACH We identify five main microstates associated with the P50 response and the difference between the first and second click presentation (S1-S2-P50) in first-episode schizophrenia patients (FESZ), ultra-high-risk individuals (UHR) and healthy controls (HC). The we used the signal segments composed of consecutive time points with the same microstate label to construct brain functional networks. MAIN RESULTS The microstate with a prefrontal extreme location during the response to the S1 of P50 are statistically different in duration, occurrence and coverage among the FESZ, UHR and HC groups. In addition, a microstate with anterior-posterior orientation was found to be associated with S1-S2-P50 and its coverage was found to differ among the FESZ, UHR and HC groups. Source location of microstates showed that activated brain regions were mainly concentrated in the right temporal lobe. Furthermore, the connectivities between brain regions involved in P50 processing of HC were widely different from those of FESZ and UHR. SIGNIFICANCE Our results indicate that P50 suppression deficits in schizophrenia may be due to both aberrant baseline sensory perception and adaptation to repeated stimulus. Our findings provide new insight into the mechanisms of P50 suppression in the early stage of schizophrenia.
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Affiliation(s)
- Qi Chang
- BeiHang University School of Biological Science and Medical Engineering, Xueyuan Road 37#, Haidian district, Beijing, 100191, P.R. China, Beijing, 100191, CHINA
| | - Cancheng Li
- School of Biological and Medical Engineering , Beihang University, Xueyuan Road 37#, Haidian district, Beijing, Beijing, 100083, CHINA
| | - Jicong Zhang
- School of Biological Science and Medical Engineering, Beihang University, Xueyuan Road 37#, Haidian district, Beijing, Beijing, 100083, CHINA
| | - Chuanyue Wang
- Beijing An Ding Hospital, 5 Ankang Hutong, Dewai Avenue, Xicheng District, Beijing, Beijing, 100088, CHINA
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14
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Neural substrates of respiratory sensory gating: A human fMRI study. Biol Psychol 2022; 169:108277. [DOI: 10.1016/j.biopsycho.2022.108277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 01/20/2022] [Accepted: 01/20/2022] [Indexed: 11/16/2022]
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Vlcek P, Bob P. Schizophrenia, Bipolar Disorder and Pre-Attentional Inhibitory Deficits. Neuropsychiatr Dis Treat 2022; 18:821-827. [PMID: 35422621 PMCID: PMC9005071 DOI: 10.2147/ndt.s352157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 03/09/2022] [Indexed: 11/25/2022] Open
Abstract
According to recent findings schizophrenia and bipolar disorder as separate disease entities manifest similarities in neuropsychological functioning. Typical disturbances in both disorders are related to sensory gating deficits characterized by decreased inhibitory functions in responses to various insignificant perceptual signals which are experimentally tested by event related potentials (ERP) and measured P50 wave. In this context, recent findings implicate that disrupted binding and disintegration of consciousness in schizophrenia and bipolar disorder that are related to inhibitory deficits reflected in P50 response may explain similarities in psychotic disturbances in both disorders. With this aim, this review summarizes literature about P50 in both schizophrenia and bipolar disorder.
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Affiliation(s)
- Premysl Vlcek
- National Institute of Mental Health, Klecany, Czech Republic.,Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Petr Bob
- Center for Neuropsychiatric Research of Traumatic Stress, Department of Psychiatry and UHSL, First Faculty of Medicine, Department of Psychiatry, & Faculty of Medicine Pilsen, Charles University, Prague, Czech Republic
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16
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Song W, Hu X, Xie G, Lai W, Wang Y, Wu D. The Auditory P50 Gating in Mild Cognitive Impairment: A Case-Control Study. Am J Alzheimers Dis Other Demen 2022; 37:15333175211068966. [PMID: 35025693 PMCID: PMC10623964 DOI: 10.1177/15333175211068966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Objective: Auditory P50 gating changed might be a neurophysiological biomarker of the diagnosis of Mild Cognitive Impairment (MCI). We aimed to determine the impact of MCI in auditory P50 gating. Methods: All recruited participants completed structured questionnaires and finished auditory P50 gating measure. Results: A total of 20 MCI patients and 17 controls had been recruited. MCI patients had a significant higher reduction of P50 gating at Fz site, when compared to controls (1.21 ± .68 vs .66 ± .37, P = .00). Zero point five was the best cut off point to distinguish MCI and control of auditory P50 gating S2/S1 at Fz site. The P50 average amplitude at Pz site in MCI patients was significantly higher than controls (2.62 ± 1.20 vs 1.70 ± .74, P = .01). Conclusion: MCI patients might have impaired the ability of inhibiting the repeated stimulus.
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Affiliation(s)
- Weidong Song
- Department of Psychiatry, Shenzhen Nanshan Center for Chronic Disease Control, Shenzhen, China
| | - Xiaohui Hu
- Department of Psychiatry, Shenzhen Nanshan Center for Chronic Disease Control, Shenzhen, China
| | - Guohua Xie
- Department of Geriatric Psychiatry, Shenzhen Mental Health Centre, Shenzhen, China
| | - Wentao Lai
- Electroencephalogram Institute, Shenzhen Mental Health Center, Shenzhen, China
| | - Yang Wang
- Department of Neurology, Longgang District People’s Hospital of Shenzhen, Shenzhen, China
| | - Donghui Wu
- Department of Geriatric Psychiatry, Shenzhen Mental Health Centre, Shenzhen, China
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17
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Chen YX, Xu XR, Huang S, Guan RR, Hou XY, Sun JQ, Sun JW, Guo XT. Auditory Sensory Gating in Children With Cochlear Implants: A P50-N100-P200 Study. Front Neurosci 2021; 15:768427. [PMID: 34938156 PMCID: PMC8685319 DOI: 10.3389/fnins.2021.768427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 11/18/2021] [Indexed: 11/26/2022] Open
Abstract
Background: While a cochlear implant (CI) can restore access to audibility in deaf children, implanted children may still have difficulty in concentrating. Previous studies have revealed a close relationship between sensory gating and attention. However, whether CI children have deficient auditory sensory gating remains unclear. Methods: To address this issue, we measured the event-related potentials (ERPs), including P50, N100, and P200, evoked by paired tone bursts (S1 and S2) in CI children and normal-hearing (NH) controls. Suppressed amplitudes for S2 compared with S1 in these three ERPs reflected sensory gating during early and later phases, respectively. A Swanson, Nolan, and Pelham IV (SNAP-IV) scale was performed to assess the attentional performance. Results: Significant amplitude differences between S1 and S2 in N100 and P200 were observed in both NH and CI children, indicating the presence of sensory gating in the two groups. However, the P50 suppression was only found in NH children and not in CI children. Furthermore, the duration of deafness was significantly positively correlated with the score of inattention in CI children. Conclusion: Auditory sensory gating can develop but is deficient during the early phase in CI children. Long-term auditory deprivation has a negative effect on sensory gating and attentional performance.
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Affiliation(s)
- Yan-Xin Chen
- Department of Otolaryngology-Head and Neck Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Xin-Ran Xu
- Department of Otolaryngology-Head and Neck Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Shuo Huang
- Department of Otolaryngology-Head and Neck Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Rui-Rui Guan
- Department of Otolaryngology-Head and Neck Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Xiao-Yan Hou
- Department of Otolaryngology-Head and Neck Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Jia-Qiang Sun
- Department of Otolaryngology-Head and Neck Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Jing-Wu Sun
- Department of Otolaryngology-Head and Neck Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Xiao-Tao Guo
- Department of Otolaryngology-Head and Neck Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,CAS Key Laboratory of Brain Function and Diseases, School of Life Sciences, University of Science and Technology of China, Hefei, China
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18
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Hedrick M, Stigers A, Grayless B, Plyler P, Bolden J, Springer C. Cognitive Measures and the Acceptable Noise Level. Am J Audiol 2021; 30:1120-1129. [PMID: 34670096 DOI: 10.1044/2021_aja-20-00162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVE The aim of this study was to determine the relation between the acceptable noise level (ANL) and cognitive measures of auditory attention and working memory. DESIGN Young adults were administered the following tests: the ANL, the Digit Span and Letter-Number Sequencing subtests of the Wechsler Adult Intelligence Scale-Fourth Edition, the Auditory Attention subtest from the Woodcock-Johnson Tests of Cognitive Abilities, the Hearing in Noise Test (HINT), and the operation span (OSPAN) test. A correlation matrix was constructed using Pearson coefficients. STUDY SAMPLE Twenty-four young adults aged 20-29 years with normal hearing participated in the study. RESULTS No significant relationships were found among the ANL and the different cognitive tasks, nor was there a significant relation found between the ANL and the HINT. However, significant relationships were found between individual cognitive tasks. There was a significant relation found between selective attention and the most comfortable level of presentation of a story. CONCLUSION Selective attention may be a key cognitive function in acceptance of background noise.
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Affiliation(s)
- Mark Hedrick
- Department of Audiology and Speech Pathology, The University of Tennessee Health Science Center, Knoxville
| | - Abbey Stigers
- Department of Audiology and Speech Pathology, The University of Tennessee Health Science Center, Knoxville
| | - Brittany Grayless
- Department of Audiology and Speech Pathology, The University of Tennessee Health Science Center, Knoxville
| | - Patrick Plyler
- Department of Audiology and Speech Pathology, The University of Tennessee Health Science Center, Knoxville
| | - Jenn Bolden
- Department of Psychology, The University of Tennessee, Knoxville
| | - Cary Springer
- Research Computing Support, Office of Information Technology, The University of Tennessee Knoxville
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19
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Binaural Background Noise Enhances Neuromagnetic Responses from Auditory Cortex. Symmetry (Basel) 2021. [DOI: 10.3390/sym13091748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The presence of binaural low-level background noise has been shown to enhance the transient evoked N1 response at about 100 ms after sound onset. This increase in N1 amplitude is thought to reflect noise-mediated efferent feedback facilitation from the auditory cortex to lower auditory centers. To test this hypothesis, we recorded auditory-evoked fields using magnetoencephalography while participants were presented with binaural harmonic complex tones embedded in binaural or monaural background noise at signal-to-noise ratios of 25 dB (low noise) or 5 dB (higher noise). Half of the stimuli contained a gap in the middle of the sound. The source activities were measured in bilateral auditory cortices. The onset and gap N1 response increased with low binaural noise, but high binaural and low monaural noise did not affect the N1 amplitudes. P1 and P2 onset and gap responses were consistently attenuated by background noise, and noise level and binaural/monaural presentation showed distinct effects. Moreover, the evoked gamma synchronization was also reduced by background noise, and it showed a lateralized reduction for monaural noise. The effects of noise on the N1 amplitude follow a bell-shaped characteristic that could reflect an optimal representation of acoustic information for transient events embedded in noise.
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20
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About time: Ageing influences neural markers of temporal predictability. Biol Psychol 2021; 163:108135. [PMID: 34126165 DOI: 10.1016/j.biopsycho.2021.108135] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 05/21/2021] [Accepted: 06/09/2021] [Indexed: 11/23/2022]
Abstract
Timing abilities help organizing the temporal structure of events but are known to change systematically with age. Yet, how the neuronal signature of temporal predictability changes across the age span remains unclear. Younger (n = 21; 23.1 years) and older adults (n = 21; 68.5 years) performed an auditory oddball task, consisting of isochronous and random sound sequences. Results confirm an altered P50 response in the older compared to younger participants. P50 amplitudes differed between the isochronous and random temporal structures in younger, and for P200 in the older group. These results suggest less efficient sensory gating in older adults in both isochronous and random auditory sequences. N100 amplitudes were more negative for deviant tones. P300 amplitudes were parietally enhanced in younger, but not in older adults. In younger participants, the P50 results confirm that this component marks temporal predictability, indicating sensitive gating of temporally regular sound sequences.
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21
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Miller SE, Graham J, Schafer E. Auditory Sensory Gating of Speech and Nonspeech Stimuli. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2021; 64:1404-1412. [PMID: 33755510 DOI: 10.1044/2020_jslhr-20-00535] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Purpose Auditory sensory gating is a neural measure of inhibition and is typically measured with a click or tonal stimulus. This electrophysiological study examined if stimulus characteristics and the use of speech stimuli affected auditory sensory gating indices. Method Auditory event-related potentials were elicited using natural speech, synthetic speech, and nonspeech stimuli in a traditional auditory gating paradigm in 15 adult listeners with normal hearing. Cortical responses were recorded at 64 electrode sites, and peak amplitudes and latencies to the different stimuli were extracted. Individual data were analyzed using repeated-measures analysis of variance. Results Significant gating of P1-N1-P2 peaks was observed for all stimulus types. N1-P2 cortical responses were affected by stimulus type, with significantly less neural inhibition of the P2 response observed for natural speech compared to nonspeech and synthetic speech. Conclusions Auditory sensory gating responses can be measured using speech and nonspeech stimuli in listeners with normal hearing. The results of the study indicate the amount of gating and neural inhibition observed is affected by the spectrotemporal characteristics of the stimuli used to evoke the neural responses.
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Affiliation(s)
- Sharon E Miller
- Department of Audiology and Speech-Language Pathology, University of North Texas, Denton
| | - Jessica Graham
- Division of Audiology, St. Louis Children's Hospital, MO
| | - Erin Schafer
- Department of Audiology and Speech-Language Pathology, University of North Texas, Denton
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22
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Acute Stress and Gender Effects in Sensory Gating of the Auditory Evoked Potential in Healthy Subjects. Neural Plast 2021; 2021:8529613. [PMID: 33777136 PMCID: PMC7981181 DOI: 10.1155/2021/8529613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 02/11/2021] [Accepted: 02/22/2021] [Indexed: 11/30/2022] Open
Abstract
Sensory gating is a neurophysiological measure of inhibition that is characterized by a reduction in the P50, N100, and P200 event-related potentials to a repeated identical stimulus. It was proposed that abnormal sensory gating is involved in the neural pathological basis of some severe mental disorders. Since then, the prevailing application of sensory gating measures has been in the study of neuropathology associated with schizophrenia and so on. However, sensory gating is not only trait-like but can be also state-like, and measures of sensory gating seemed to be affected by several factors in healthy subjects. The objective of this work was to clarify the roles of acute stress and gender in sensory gating. Data showed acute stress impaired inhibition of P50 to the second click in the paired-click paradigm without effects on sensory registration leading to worse P50 sensory gating and disrupted attention allocation reflected by attenuated P200 responses than control condition, without gender effects. As for N100 and P200 gating, women showed slightly better than men without effects of acute stress. Data also showed slightly larger N100 amplitudes across clicks and significant larger P200 amplitude to the first click for women, suggesting that women might be more alert than men.
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23
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Rovný R, Besterciová D, Riečanský I. Genetic Determinants of Gating Functions: Do We Get Closer to Understanding Schizophrenia Etiopathogenesis? Front Psychiatry 2020; 11:550225. [PMID: 33324248 PMCID: PMC7723973 DOI: 10.3389/fpsyt.2020.550225] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 10/12/2020] [Indexed: 11/13/2022] Open
Abstract
Deficits in the gating of sensory stimuli, i.e., the ability to suppress the processing of irrelevant sensory input, are considered to play an important role in the pathogenesis of several neuropsychiatric disorders, in particular schizophrenia. Gating is disrupted both in schizophrenia patients and their unaffected relatives, suggesting that gating deficit may represent a biomarker associated with a genetic liability to the disorder. To assess the strength of the evidence for the etiopathogenetic links between genetic variation, gating efficiency, and schizophrenia, we carried out a systematic review of human genetic association studies of sensory gating (suppression of the P50 component of the auditory event-related brain potential) and sensorimotor gating (prepulse inhibition of the acoustic startle response). Sixty-three full-text articles met the eligibility criteria for inclusion in the review. In total, 117 genetic variants were reported to be associated with gating functions: 33 variants for sensory gating, 80 variants for sensorimotor gating, and four variants for both sensory and sensorimotor gating. However, only five of these associations (four for prepulse inhibition-CHRNA3 rs1317286, COMT rs4680, HTR2A rs6311, and TCF4 rs9960767, and one for P50 suppression-CHRNA7 rs67158670) were consistently replicated in independent samples. Although these variants and genes were all implicated in schizophrenia in research studies, only two polymorphisms (HTR2A rs6311 and TCF4 rs9960767) were also reported to be associated with schizophrenia at a meta-analytic or genome-wide level of evidence. Thus, although gating is widely considered as an important endophenotype of schizophrenia, these findings demonstrate that evidence for a common genetic etiology of impaired gating functions and schizophrenia is yet unsatisfactory, warranting further studies in this field.
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Affiliation(s)
- Rastislav Rovný
- Department of Behavioural Neuroscience, Institute of Normal and Pathological Physiology, Centre of Experimental Medicine, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Dominika Besterciová
- Department of Behavioural Neuroscience, Institute of Normal and Pathological Physiology, Centre of Experimental Medicine, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Igor Riečanský
- Department of Behavioural Neuroscience, Institute of Normal and Pathological Physiology, Centre of Experimental Medicine, Slovak Academy of Sciences, Bratislava, Slovakia
- Social, Cognitive and Affective Neuroscience Unit, Department of Cognition, Emotion, and Methods in Psychology, Faculty of Psychology, University of Vienna, Vienna, Austria
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24
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Campbell J, Nielsen M, LaBrec A, Bean C. Sensory Inhibition Is Related to Variable Speech Perception in Noise in Adults With Normal Hearing. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2020; 63:1595-1607. [PMID: 32402215 DOI: 10.1044/2020_jslhr-19-00261] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Purpose Speech perception in noise (SPiN) varies widely in individuals with normal hearing, which may be attributed to factors that are not reflected in the audiogram, such as inhibition. However, inhibition is involved at both sensory and cognitive stages of auditory perception, and while inhibition at the cognitive level has been shown to be a significant factor in SPiN processes, it is unknown whether sensory inhibition may also contribute to SPiN variability. Therefore, the goal of this study was to evaluate sensory inhibition in adults with normal hearing and mild SPiN impairment. Method Cortical auditory evoked potentials (CAEPs) were recorded in 49 adults via high-density electroencephalography using an auditory gating paradigm. Participants were categorized according to a median signal-to-noise ratio (SNR) loss of 1.5 dB: typical SNR loss ≤ 1.5 dB (n = 32), mild SNR loss > 1.5 dB (n = 17). CAEP gating responses were compared and correlated with SNR loss and extended high-frequency thresholds. Current density reconstructions were performed to qualitatively observe underlying cortical inhibitory networks in each group. Results In comparison to adults with typical SPiN ability, adults with mild SPiN impairment showed an absence of the gating response. A CAEP gating component (P2) reflected decreased sensory inhibition and correlated with increased SNR loss. Extended high-frequency thresholds were also found to correlate with SNR loss, but not gating function. An atypical cortical inhibitory network was observed in the mild SNR loss group, with reduced frontal and absent prefrontal activation. Conclusion Sensory inhibition appears to be atypical and related to SPiN deficits in adults with mild impairment. In addition, cortical inhibitory networks appear to be incomplete, with a possible compensatory parietal network. Further research is needed to delineate between types or levels of central inhibitory mechanisms and their contribution to SPiN processes.
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Affiliation(s)
- Julia Campbell
- Department of Communication Sciences and Disorders, Central Sensory Processes Laboratory, The University of Texas at Austin
| | - Mashhood Nielsen
- Department of Communication Sciences and Disorders, Central Sensory Processes Laboratory, The University of Texas at Austin
| | - Alison LaBrec
- Department of Communication Sciences and Disorders, Central Sensory Processes Laboratory, The University of Texas at Austin
| | - Connor Bean
- Department of Communication Sciences and Disorders, Central Sensory Processes Laboratory, The University of Texas at Austin
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25
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Jafari Z, Kolb BE, Mohajerani MH. Prepulse inhibition of the acoustic startle reflex and P50 gating in aging and alzheimer's disease. Ageing Res Rev 2020; 59:101028. [PMID: 32092463 DOI: 10.1016/j.arr.2020.101028] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 01/20/2020] [Accepted: 02/17/2020] [Indexed: 02/07/2023]
Abstract
Inhibition plays a crucial role in many functional domains, such as cognition, emotion, and actions. Studies on cognitive aging demonstrate changes in inhibitory mechanisms are age- and pathology-related. Prepulse inhibition (PPI) is the suppression of an acoustic startle reflex (ASR) to an intense stimulus when a weak prepulse stimulus precedes the startle stimulus. A reduction of PPI is thought to reflect dysfunction of sensorimotor gating which normally suppresses excessive behavioral responses to disruptive stimuli. Both human and rodent studies show age-dependent alterations of PPI of the ASR that are further compromised in Alzheimer's disease (AD). The auditory P50 gating, an index of repetition suppression, also is characterized as a putative electrophysiological biomarker of prodromal AD. This review provides the latest evidence of age- and AD-associated impairment of sensorimotor gating based upon both human and rodent studies, as well as the AD-related disruption of P50 gating in humans. It begins with a concise review of neural networks underlying PPI regulation. Then, evidence of age- and AD-related dysfunction of both PPI and P50 gating is discussed. The attentional/ emotional aspects of sensorimotor gating and the neurotransmitter mechanisms underpinning PPI and P50 gating are also reviewed. The review ends with conclusions and research directions.
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Affiliation(s)
- Zahra Jafari
- Department of Neuroscience, Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, T1K 3M4 AB, Canada; Department of Basic Sciences in Rehabilitation, School of Rehabilitation Sciences, Iran University of Medical Science (IUMS), Tehran, Iran
| | - Bryan E Kolb
- Department of Neuroscience, Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, T1K 3M4 AB, Canada.
| | - Majid H Mohajerani
- Department of Neuroscience, Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, T1K 3M4 AB, Canada.
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26
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The First 250 ms of Auditory Processing: No Evidence of Early Processing Negativity in the Go/NoGo Task. Sci Rep 2020; 10:4041. [PMID: 32132630 PMCID: PMC7055275 DOI: 10.1038/s41598-020-61060-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 01/30/2020] [Indexed: 12/02/2022] Open
Abstract
Past evidence of an early Processing Negativity in auditory Go/NoGo event-related potential (ERP) data suggests that young adults proactively process sensory information in two-choice tasks. This study aimed to clarify the occurrence of Go/NoGo Processing Negativity and investigate the ERP component series related to the first 250 ms of auditory processing in two Go/NoGo tasks differing in target probability. ERP data related to each task were acquired from 60 healthy young adults (M = 20.4, SD = 3.1 years). Temporal principal components analyses were used to decompose ERP data in each task. Statistical analyses compared component amplitudes between stimulus type (Go vs. NoGo) and probability (High vs. Low). Neuronal source localisation was also conducted for each component. Processing Negativity was not evident; however, P1, N1a, N1b, and N1c were identified in each task, with Go P2 and NoGo N2b. The absence of Processing Negativity in this study indicated that young adults do not proactively process targets to complete the Go/NoGo task and/or questioned Processing Negativity’s conceptualisation. Additional analyses revealed stimulus-specific processing as early as P1, and outlined a complex network of active neuronal sources underlying each component, providing useful insight into Go and NoGo information processing in young adults.
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27
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Hsu YF, Xu W, Parviainen T, Hämäläinen JA. Context-dependent minimisation of prediction errors involves temporal-frontal activation. Neuroimage 2020; 207:116355. [DOI: 10.1016/j.neuroimage.2019.116355] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 10/16/2019] [Accepted: 11/11/2019] [Indexed: 10/25/2022] Open
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28
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Chang Q, Liu M, Tian Q, Wang H, Luo Y, Zhang J, Wang C. EEG-Based Brain Functional Connectivity in First-Episode Schizophrenia Patients, Ultra-High-Risk Individuals, and Healthy Controls During P50 Suppression. Front Hum Neurosci 2019; 13:379. [PMID: 31803031 PMCID: PMC6870009 DOI: 10.3389/fnhum.2019.00379] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 10/10/2019] [Indexed: 01/29/2023] Open
Abstract
Dysfunctional processing of auditory sensory gating has generally been found in schizophrenic patients and ultra-high-risk (UHR) individuals. The aim of the study was to investigate the differences of functional interaction between brain regions and performance during the P50 sensory gating in UHR group compared with those in first-episode schizophrenia patients (FESZ) and healthy controls (HC) groups. The study included 128-channel scalp Electroencephalogram (EEG) recordings during the P50 auditory paradigm for 35 unmedicated FESZ, 30 drug-free UHR, and 40 HC. Cortical sources of scalp electrical activity were recomputed using exact low-resolution electromagnetic tomography (eLORETA), and functional brain networks were built at the source level and compared between the groups (FESZ, UHR, HC). A classifier using decision tree was designed for differentiating the three groups, which uses demographic characteristics, MATRICS Consensus Cognitive Battery parameters, behavioral features in P50 paradigm, and the measures of functional brain networks based on graph theory during P50 sensory gating. The results showed that very few brain connectivities were significantly different between FESZ and UHR groups during P50 sensory gating, and that a large number of brain connectivities were significantly different between FESZ and HC groups and between UHR and HC groups. Furthermore, the FESZ group had a stronger connection in the right superior frontal gyrus and right insula than the HC group. And the UHR group had an enhanced connection in the paracentral lobule and the middle temporal gyrus compared with the HC group. Moreover, comparison of classification analysis results showed that brain network metrics during P50 sensory gating can improve the accuracy of the classification for FESZ, UHR and HC groups. Our findings provide insight into the mechanisms of P50 suppression in schizophrenia and could potentially improve the performance of early identification and diagnosis of schizophrenia for the earliest intervention.
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Affiliation(s)
- Qi Chang
- School of Biological Science and Medical Engineering, Beihang University, Beijing, China.,Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang University, Beijing, China.,Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Beihang University, Beijing, China
| | - Meijun Liu
- School of Biological Science and Medical Engineering, Beihang University, Beijing, China.,Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang University, Beijing, China.,Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Beihang University, Beijing, China
| | - Qing Tian
- The National Clinical Research Center for Mental Disorders and Beijing Key Laboratory of Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing, China.,Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China
| | - Hua Wang
- School of Biological Science and Medical Engineering, Beihang University, Beijing, China.,Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang University, Beijing, China.,Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China.,Hefei Innovation Research Institute, Beihang University, Hefei, China.,School of Biomedical Engineering, Anhui Medical University, Hefei, China
| | - Yu Luo
- School of Biological Science and Medical Engineering, Beihang University, Beijing, China.,Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang University, Beijing, China.,Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Beihang University, Beijing, China
| | - Jicong Zhang
- School of Biological Science and Medical Engineering, Beihang University, Beijing, China.,Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang University, Beijing, China.,Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Beihang University, Beijing, China.,Hefei Innovation Research Institute, Beihang University, Hefei, China.,School of Biomedical Engineering, Anhui Medical University, Hefei, China
| | - Chuanyue Wang
- The National Clinical Research Center for Mental Disorders and Beijing Key Laboratory of Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing, China.,Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China
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29
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Washnik NJ, Anjum J, Lundgren K, Phillips S. A Review of the Role of Auditory Evoked Potentials in Mild Traumatic Brain Injury Assessment. Trends Hear 2019; 23:2331216519840094. [PMID: 30995888 DOI: 10.1177/2331216519840094] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Around 75% to 90% of people who experience a traumatic brain injury (TBI) are classified as having a mild TBI (mTBI). The term mTBI is synonymous with concussion or mild head injury (MHI) and is characterized by symptoms of headache, nausea, dizziness, and blurred vision. Problems in cognitive abilities such as deficits in memory, processing speed, executive functioning, and attention are also considered symptoms of mTBI. Since these symptoms are subtle in nature and may not appear immediately following the injury, mTBI is often undetected on conventional neuropsychological tests. Current neuroimaging techniques may not be sensitive enough in identifying the array of microscopic neuroanatomical and subtle neurophysiological changes following mTBI. To this end, electrophysiological tests, such as auditory evoked potentials (AEPs), can be used as sensitive tools in tracking physiological changes underlying physical and cognitive symptoms associated with mTBI. The purpose of this review article is to examine the body of literature describing the application of AEPs in the assessment of mTBI and to explore various parameters of AEPs which may hold diagnostic value in predicting positive rehabilitative outcomes for people with mTBI.
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Affiliation(s)
- Nilesh J Washnik
- 1 Department of Communication Sciences and Disorders, Ohio University, Athens OH, USA
| | - Javad Anjum
- 2 Department of Speech and Language Pathology, University of Mary, Bismarck, ND, USA
| | - Kristine Lundgren
- 3 Department of Communication Sciences and Disorders, University of North Carolina at Greensboro, NC, USA
| | - Susan Phillips
- 3 Department of Communication Sciences and Disorders, University of North Carolina at Greensboro, NC, USA
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Abstract
Abstract. Sensory gating allows an individual to filter out irrelevant sensory information from the environment, potentially freeing attentional resources for more complex tasks. Some work has demonstrated a relationship between auditory sensory gating and cognitive skills such as executive function, although the functional significance is not well understood. The relationship between sensory gating and personality dimensions has not been adequately explored. Participants completed a paired-tone sensory gating event-related potential (ERP) paradigm and the Big Five Inventory to assess personality characteristics. Participants with more robust P50 sensory gating reported a significantly greater degree of conscientiousness; conscientiousness (but not the other Big Five factors) predicted sensory gating ability. Longer ERP latencies were associated with participants being more conscientious (P50 component), more agreeable, and less neurotic (N100 component). A better understanding of the behavioral correlates of sensory gating will help elucidate the functional consequences of reduced sensory gating both in typical adults and clinical groups.
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Affiliation(s)
- Carly A. Yadon
- Department of Psychology, Missouri State University, Springfield, MO, USA
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31
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Buján A, Lister JJ, O'Brien JL, Edwards JD. Cortical auditory evoked potentials in mild cognitive impairment: Evidence from a temporal-spatial principal component analysis. Psychophysiology 2019; 56:e13466. [PMID: 31420880 DOI: 10.1111/psyp.13466] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 07/05/2019] [Accepted: 07/17/2019] [Indexed: 11/29/2022]
Abstract
Mild cognitive impairment (MCI) is considered an intermediate transitional stage for the development of dementia, especially Alzheimer's disease. The identification of neurophysiological biomarkers for MCI will allow improvement in detecting and tracking the progression of cognitive impairment. The primary objective of this study was to compare cortical auditory evoked potentials between older adults with and without probable MCI to identify potential neurophysiological indicators of cognitive impairment. We applied a temporal-spatial principal component analysis to the evoked potentials achieved during the processing of pure tones and speech sounds, to facilitate the separation of the components of the P1-N1-P2 complex. The probable MCI group showed a significant amplitude increase in a factor modeling N1b for speech sounds (Cohen's d = .84) and a decrease in a factor around the P2 time interval, especially for pure tones (Cohen's d = 1.17). Moreover, both factors showed a fair discrimination value between groups (area under the curve [AUC] = .698 for N1b in speech condition; AUC = .746 for P2 in tone condition), with high sensitivity to detect MCI cases (86% and 91%, respectively). The results for N1b suggest that MCI participants may suffer from a deficit to inhibit irrelevant speech information, and the decrease of P2 amplitude could be a signal of cholinergic hypoactivation. Therefore, both components could be proposed as early biomarkers of cognitive impairment.
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Affiliation(s)
- Ana Buján
- Gerontology Research Group, Department of Physiotherapy, Medicine and Biomedical Sciences, University of A Coruña-INIBIC, A Coruña, Spain
| | - Jennifer J Lister
- Communication Sciences and Disorders, University of South Florida, Tampa, Florida
| | - Jennifer L O'Brien
- Department of Psychology, University of South Florida St. Petersburg, St. Petersburg, Florida
| | - Jerri D Edwards
- Communication Sciences and Disorders, University of South Florida, Tampa, Florida.,Psychiatry and Behavioral Neurosciences, University of South Florida, Tampa, Florida
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32
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Golubic SJ, Jurasic MJ, Susac A, Huonker R, Gotz T, Haueisen J. Attention modulates topology and dynamics of auditory sensory gating. Hum Brain Mapp 2019; 40:2981-2994. [PMID: 30882981 PMCID: PMC6865797 DOI: 10.1002/hbm.24573] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 02/11/2019] [Accepted: 03/06/2019] [Indexed: 01/26/2023] Open
Abstract
This work challenges the widely accepted model of sensory gating as a preattention inhibitory process by investigating whether attention directed at the second tone (S2) within a paired-click paradigm could affect gating at the cortical level. We utilized magnetoencephalography, magnetic resonance imaging and spatio-temporal source localization to compare the cortical dynamics underlying gating responses across two conditions (passive and attention) in 19 healthy subjects. Source localization results reaffirmed the existence of a fast processing pathway between the prefrontal cortex (PFC) and bilateral superior temporal gyri (STG) that underlies the auditory gating process. STG source dynamics comprised two gating sub-components, Mb1 and Mb2, both of which showed significant gating suppression (>51%). The attention directed to the S2 tone changed the gating network topology by switching the prefrontal generator from a dorsolateral location, which was active in the passive condition (18/19), to a medial location, active in the attention condition (19/19). Enhanced responses to the attended stimulus caused a significant reduction in gating suppression in both STG gating components (>50%). Our results demonstrate that attention not only modulates sensory gating dynamics, but also exerts topological rerouting of information processing within the PFC. The present data, suggesting that the cortical levels of early sensory processing are subject to top-down influences, change the current view of gating as a purely automatic bottom-up process.
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Affiliation(s)
| | | | - Ana Susac
- Department of Physics, Faculty of ScienceUniversity of ZagrebZagrebCroatia
- Department of Applied Physics, Faculty of Electrical Engineering and ComputingUniversity of ZagrebZagrebCroatia
| | - Ralph Huonker
- Biomagnetic Center, Hans Berger Department of NeurologyJena University HospitalJenaGermany
| | - Theresa Gotz
- Biomagnetic Center, Hans Berger Department of NeurologyJena University HospitalJenaGermany
- Institute of Medical Statistics, Computer Sciences and Documentation, Jena University HospitalJenaGermany
| | - Jens Haueisen
- Biomagnetic Center, Hans Berger Department of NeurologyJena University HospitalJenaGermany
- Institute of Biomedical Engineering and Informatics, Technical University IlmenauIlmenauGermany
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Chen YH, Howell B, Edgar JC, Huang M, Kochunov P, Hunter MA, Wootton C, Lu BY, Bustillo J, Sadek JR, Miller GA, Cañive JM. Associations and Heritability of Auditory Encoding, Gray Matter, and Attention in Schizophrenia. Schizophr Bull 2019; 45:859-870. [PMID: 30099543 PMCID: PMC6581123 DOI: 10.1093/schbul/sby111] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Auditory encoding abnormalities, gray-matter loss, and cognitive deficits are all candidate schizophrenia (SZ) endophenotypes. This study evaluated associations between and heritability of auditory network attributes (function and structure) and attention in healthy controls (HC), SZ patients, and unaffected relatives (UR). METHODS Whole-brain maps of M100 auditory activity from magnetoencephalography recordings, cortical thickness (CT), and a measure of attention were obtained from 70 HC, 69 SZ patients, and 35 UR. Heritability estimates (h2r) were obtained for M100, CT at each group-difference region, and the attention measure. RESULTS SZ patients had weaker bilateral superior temporal gyrus (STG) M100 responses than HC and a weaker right frontal M100 response than UR. Abnormally large M100 responses in left superior frontal gyrus were observed in UR and SZ patients. SZ patients showed smaller CT in bilateral STG and right frontal regions. Interrelatedness between 3 putative SZ endophenotypes was demonstrated, although in the left STG the M100 and CT function-structure associations observed in HC and UR were absent in SZ patients. Heritability analyses also showed that right frontal M100 and bilateral STG CT measures are significantly heritable. CONCLUSIONS Present findings indicated that the 3 SZ endophenotypes examined are not isolated markers of pathology but instead are connected. The pattern of auditory encoding group differences and the pattern of brain function-structure associations differ as a function of brain region, indicating the need for regional specificity when studying these endophenotypes, and with the presence of left STG function-structure associations in HC and UR but not in SZ perhaps reflecting disease-associated damage to gray matter that disrupts function-structure relationships in SZ.
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Affiliation(s)
- Yu-Han Chen
- Department of Radiology, Lurie Family Foundations MEG Imaging Center, Children’s Hospital of Philadelphia, Philadelphia, PA,To whom correspondence should be addressed; Department of Radiology, The Children’s Hospital of Philadelphia, Seashore House 1F Room 116B, Philadelphia, PA 19104, USA; tel: +1(267)426-0959, fax: +1(267)425-2465, e-mail:
| | - Breannan Howell
- Department of Psychology, The University of New Mexico, Albuquerque, NM,Department of Psychiatry and Behavioral Sciences, Center for Psychiatric Research, The University of New Mexico, Albuquerque, NM
| | - J Christopher Edgar
- Department of Radiology, Lurie Family Foundations MEG Imaging Center, Children’s Hospital of Philadelphia, Philadelphia, PA
| | - Mingxiong Huang
- Department of Radiology, University of California, San Diego, San Diego, CA,Department of Radiology, VA San Diego Healthcare System, US Department of Veterans Affairs, San Diego, CA
| | - Peter Kochunov
- Maryland Psychiatric Research Center, The University of Maryland, Baltimore, MD
| | - Michael A Hunter
- Department of Psychology, The University of New Mexico, Albuquerque, NM,Department of Psychiatry and Behavioral Sciences, Center for Psychiatric Research, The University of New Mexico, Albuquerque, NM
| | - Cassandra Wootton
- Department of Psychiatry and Behavioral Sciences, Center for Psychiatric Research, The University of New Mexico, Albuquerque, NM
| | - Brett Y Lu
- Department of Psychiatry, University of Hawaii at Manoa, Honolulu, HI
| | - Juan Bustillo
- Department of Psychiatry and Behavioral Sciences, Center for Psychiatric Research, The University of New Mexico, Albuquerque, NM
| | - Joseph R Sadek
- Psychiatry Research, New Mexico VA Health Care System, Raymond G. Murphy VA Medical Center, US Department of Veterans Affairs, Albuquerque, NM
| | - Gregory A Miller
- Department of Psychology, University of California, Los Angeles, CA,Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, CA
| | - José M Cañive
- Department of Psychiatry and Behavioral Sciences, Center for Psychiatric Research, The University of New Mexico, Albuquerque, NM,Psychiatry Research, New Mexico VA Health Care System, Raymond G. Murphy VA Medical Center, US Department of Veterans Affairs, Albuquerque, NM
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Luo Y, Zhang J, Wang C, Zhao X, Chang Q, Wang H, Wang C. Discriminating schizophrenia disease progression using a P50 sensory gating task with dense-array EEG, clinical assessments, and cognitive tests. Expert Rev Neurother 2019; 19:459-470. [DOI: 10.1080/14737175.2019.1601558] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Yu Luo
- School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China
- Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Beihang University, Beijing, 100083, China
- Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang University, Beijing, 100083, China
- Hefei Innovation Research Institute, Beihang University, Hefei, 100083, Anhui, China
| | - Jicong Zhang
- School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China
- Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Beihang University, Beijing, 100083, China
- Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang University, Beijing, 100083, China
- Hefei Innovation Research Institute, Beihang University, Hefei, 100083, Anhui, China
| | - Changming Wang
- Beijing Anding Hospital, Capital Medical University, Beijing, 100088, China
| | - Xiaohui Zhao
- School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China
- Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Beihang University, Beijing, 100083, China
- Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang University, Beijing, 100083, China
- Hefei Innovation Research Institute, Beihang University, Hefei, 100083, Anhui, China
| | - Qi Chang
- School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China
| | - Hua Wang
- School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China
- Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Beihang University, Beijing, 100083, China
- Hefei Innovation Research Institute, Beihang University, Hefei, 100083, Anhui, China
| | - Chuanyue Wang
- Beijing Anding Hospital, Capital Medical University, Beijing, 100088, China
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35
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Smith ES, Crawford TJ, Thomas M, Reid VM. Is schizotypic maternal personality linked to sensory gating abilities during infancy? Exp Brain Res 2019; 237:1869-1879. [PMID: 31087111 PMCID: PMC6584245 DOI: 10.1007/s00221-019-05554-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 05/04/2019] [Indexed: 01/09/2023]
Abstract
Schizotypy is a personality dimension within the general population elevated among schizophrenia-spectrum patients and their first-degree relatives. Sensory gating is the pre-attentional habituation of responses distinguishing between important and irrelevant information. This is measured by event-related potentials, which have been found to display abnormalities in schizophrenic disorders. The current study investigated whether 6-month-old infants of mothers with schizotypic traits display sensory gating abnormalities. The paired-tone paradigm: two identical auditory tones (stimulus 1 and stimulus 2) played 500 ms apart, was used to probe the selective activation of the brain during 15-minutes of sleep. Their mothers completed the Oxford and Liverpool Inventory of Feelings and Experiences-Short Form as an index of schizotypy dimensionality, categorized into: infants of control, and infants of schizotypic, mothers. The findings revealed that although the infants’ P50 components displayed significant differences between stimulus 1 and stimulus 2 in the paired-tone paradigm, there was no clear difference between infants of schizotypic and infants of control mothers. In contrast, all mothers displayed significant differences between stimulus 1 and stimulus 2, as observed in the infants, but also significant differences between their sensory gating ability correlated with schizotypy dimensionality. These findings are consistent with sensory processes, such as sensory gating, evidencing impairment in schizophrenia-spectrum disorders. The present research supports the idea that first-degree relatives of individuals who identify on this spectrum, within the sub-clinical category, do not display the same deficit at 6 postnatal months of age.
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Affiliation(s)
- Eleanor S Smith
- Department of Psychology, Lancaster University, Lancaster, LA1 4YF, UK. .,Department of Psychology, University of Cambridge, Downing Street, Cambridge, CB2 3EB, UK.
| | - Trevor J Crawford
- Department of Psychology, Lancaster University, Lancaster, LA1 4YF, UK
| | - Megan Thomas
- Blackpool Teaching Hospitals NHS Foundation Trust, Blackpool, FY3 8NR, UK
| | - Vincent M Reid
- Department of Psychology, Lancaster University, Lancaster, LA1 4YF, UK
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36
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Campbell J, LaBrec A, Bean C, Nielsen M, So W. Auditory Gating and Extended High-Frequency Thresholds in Normal-Hearing Adults With Minimal Tinnitus. Am J Audiol 2019; 28:209-224. [PMID: 31022362 DOI: 10.1044/2019_aja-ttr17-18-0036] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Purpose The goal of this study was to assess whether peripheral auditory sensitivity in frequency regions above 8 kHz is related to central inhibitory function, as measured through a sensory gating paradigm, in normal-hearing adults with tinnitus (TINN) and without tinnitus (NTINN). The contribution of gating processes and peripheral sensitivity in extended high frequencies to tinnitus severity was evaluated via a hierarchical multiple regression method. Method Cortical auditory evoked potentials (CAEPs) were recorded in response to pairs of tones in normal-hearing adults without tinnitus, NTINN ( n = 45), and adults with tinnitus, TINN ( n = 21). CAEP peak component amplitude, latency, and gating indices were compared and correlated with extended high-frequency (EHF) pure-tone averages (PTAs) across groups and with tinnitus severity. An exploratory analysis was performed to investigate gating variability within the TINN group. Based on Tinnitus Handicap Inventory (Newman, Jacobson, & Spitzer, 1996) median scores, the TINN group was categorized into low- and high-median subgroups, and gating indices were compared between these subgroups. A hierarchical multiple regression analysis was performed to determine the amount of variance accounted for in the TINN group. Results Decreased gating via the CAEP Pa component and increased gating via the N1 component correlated with increased tinnitus severity, even in individuals who would traditionally be classified as having no tinnitus handicap. In the TINN group, lower EHF PTA thresholds correlated with tinnitus severity and decreased Pa gating. Individuals with a greater severity of tinnitus demonstrated atypical gating function reflected in both Pa and N1 components. Gating function and EHF PTA accounted for significant variance regarding tinnitus severity. Conclusions A trade-off between lower and higher level gating function was observed in adults with normal hearing and tinnitus, indicative of higher order compensatory mechanisms. Better cochlear sensitivity in extended high frequencies was related to decreased lower level gating processes and increased tinnitus THI scores, suggestive of an interaction between decreased gating and heightened auditory awareness. We are currently exploring whether gating processes in this population are compensatory, and the role of gating in auditory awareness.
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Affiliation(s)
- Julia Campbell
- Department of Communication Sciences and Disorders, The University of Texas at Austin
- Central Sensory Processes Laboratory, The University of Texas at Austin
| | - Alison LaBrec
- Department of Communication Sciences and Disorders, The University of Texas at Austin
- Central Sensory Processes Laboratory, The University of Texas at Austin
| | - Connor Bean
- Department of Communication Sciences and Disorders, The University of Texas at Austin
- Central Sensory Processes Laboratory, The University of Texas at Austin
| | - Mashhood Nielsen
- Department of Communication Sciences and Disorders, The University of Texas at Austin
- Central Sensory Processes Laboratory, The University of Texas at Austin
| | - Won So
- Department of Communication Sciences and Disorders, The University of Texas at Austin
- Central Sensory Processes Laboratory, The University of Texas at Austin
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37
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Xiang J, Tian C, Niu Y, Yan T, Li D, Cao R, Guo H, Cui X, Cui H, Tan S, Wang B. Abnormal Entropy Modulation of the EEG Signal in Patients With Schizophrenia During the Auditory Paired-Stimulus Paradigm. Front Neuroinform 2019; 13:4. [PMID: 30837859 PMCID: PMC6390065 DOI: 10.3389/fninf.2019.00004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 01/22/2019] [Indexed: 12/20/2022] Open
Abstract
The complexity change in brain activity in schizophrenia is an interesting topic clinically. Schizophrenia patients exhibit abnormal task-related modulation of complexity, following entropy of electroencephalogram (EEG) analysis. However, complexity modulation in schizophrenia patients during the sensory gating (SG) task, remains unknown. In this study, the classical auditory paired-stimulus paradigm was introduced to investigate SG, and EEG data were recorded from 55 normal controls and 61 schizophrenia patients. Fuzzy entropy (FuzzyEn) was used to explore the complexity of brain activity under the conditions of baseline (BL) and the auditory paired-stimulus paradigm (S1 and S2). Generally, schizophrenia patients showed significantly higher FuzzyEn values in the frontal and occipital regions of interest (ROIs). Relative to the BL condition, the normalized values of FuzzyEn of normal controls were decreased greatly in condition S1 and showed less variance in condition S2. Schizophrenia patients showed a smaller decrease in the normalized values in condition S1. Moreover, schizophrenia patients showed significant diminution in the suppression ratios of FuzzyEn, attributed to the higher FuzzyEn values in condition S1. These results suggested that entropy modulation during the process of sensory information and SG was obvious in normal controls and significantly deficient in schizophrenia patients. Additionally, the FuzzyEn values measured in the frontal ROI were positively correlated with positive scores of Positive and Negative Syndrome Scale (PANSS), indicating that frontal entropy was a potential indicator in evaluating the clinical symptoms. However, negative associations were found between the FuzzyEn values of occipital ROIs and general and total scores of PANSS, likely reflecting the compensation effect in visual processing. Thus, our findings provided a deeper understanding of the deficits in sensory information processing and SG, which contribute to cognitive deficits and symptoms in patients with schizophrenia.
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Affiliation(s)
- Jie Xiang
- College of Information and Computer, Taiyuan University of Technology, Taiyuan, China
| | - Cheng Tian
- College of Information and Computer, Taiyuan University of Technology, Taiyuan, China
| | - Yan Niu
- College of Information and Computer, Taiyuan University of Technology, Taiyuan, China
| | - Ting Yan
- Translational Medicine Research Center Shanxi Medical University, Taiyuan, China
| | - Dandan Li
- College of Information and Computer, Taiyuan University of Technology, Taiyuan, China
| | - Rui Cao
- College of Information and Computer, Taiyuan University of Technology, Taiyuan, China
| | - Hao Guo
- College of Information and Computer, Taiyuan University of Technology, Taiyuan, China
| | - Xiaohong Cui
- College of Information and Computer, Taiyuan University of Technology, Taiyuan, China
| | - Huifang Cui
- College of Information and Computer, Taiyuan University of Technology, Taiyuan, China
| | - Shuping Tan
- Psychiatry Research Center, Beijing Huilongguan Hospital, Peking University, Beijing, China
| | - Bin Wang
- College of Information and Computer, Taiyuan University of Technology, Taiyuan, China
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38
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Boutros NN, Gjini K, Wang F, Bowyer SM. Evoked Potentials Investigations of Deficit Versus Nondeficit Schizophrenia: EEG-MEG Preliminary Data. Clin EEG Neurosci 2019; 50:75-87. [PMID: 30175598 DOI: 10.1177/1550059418797868] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Heterogeneity of schizophrenia is a major obstacle toward understanding the disorder. One likely subtype is the deficit syndrome (DS) where patients suffer from predominantly negative symptoms. This study investigated the evoked responses and the evoked magnetic fields to identify the neurophysiological deviations associated with the DS. Ten subjects were recruited for each group (Control, DS, and Nondeficit schizophrenia [NDS]). Subjects underwent magnetoencephalography (MEG) and electroencephalography (EEG) testing while listening to an oddball paradigm to generate the P300 as well as a paired click paradigm to generate the mid-latency auditory-evoked responses (MLAER) in a sensory gating paradigm. MEG-coherence source imaging (CSI) during P300 task revealed a significantly higher average coherence value in DS than NDS subjects in the gamma band (30-80 Hz), when listening to standard stimuli but only NDS subjects had a higher average coherence level in the gamma band than controls when listening to the novel sounds. P50, N100, and P3a ERP amplitudes (EEG analysis) were significantly decreased in NDS compared with DS subjects. The data suggest that the deviations in the 2 patient groups are qualitatively different. Deviances in NDS patients suggest difficulty in both early (as in the gating paradigm), as well as later top-down processes (P300 paradigm). The main deviation in the DS group was an exaggerated responsiveness to ongoing irrelevant stimuli detected by EEG whereas NDS subjects had an exaggerated response to novelty.
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Affiliation(s)
- Nash N Boutros
- Department of Psychiatry, University of Missouri-Kansas City (UMKC), Kansas City, MO, USA.,Saint Luke's Marion Bloch Neuroscience Institute, Kansas City, MO, USA
| | - Klevest Gjini
- Department of Neurology, University of Wisconsin-Madison, Madison, WI, USA
| | - Frank Wang
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA.,Wayne State University, Detroit, MI, USA
| | - Susan M Bowyer
- Department of Neurology, Henry Ford Hospital, Detroit, MI, USA.,Wayne State University, Detroit, MI, USA
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39
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Campbell J, Bean C, LaBrec A. Normal hearing young adults with mild tinnitus: Reduced inhibition as measured through sensory gating. Audiol Res 2018; 8:214. [PMID: 30405896 PMCID: PMC6199556 DOI: 10.4081/audiores.2018.214] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 06/25/2018] [Indexed: 01/26/2023] Open
Abstract
Decreased central inhibition, possibly related to hearing loss, may contribute to chronic tinnitus. However, many individuals with normal hearing thresholds report tinnitus, suggesting that the percept in this population may arise from sources other than peripheral deafferentation. One measure of inhibition is sensory gating. Sensory gating involves the suppression of non-novel input, and is measured through cortical auditory evoked potential (CAEP) responses to paired stimuli. In typical gating function, amplitude suppression is observed in the second CAEP response when compared to the first CAEP response, illustrating inhibitory activity. Using this measure, we investigated central inhibitory processes in normal hearing young adults with and without mild tinnitus to determine whether inhibition may be a contributing factor to the tinnitus percept. Results showed that gating function was impaired in the tinnitus group, with the CAEP Pa component significantly correlated with tinnitus severity. Further exploratory analyses were conducted to evaluate variability in gating function within the tinnitus group, and findings showed that high CAEP amplitude suppressors demonstrated gating performance comparable to adults without tinnitus, while low amplitude suppressors exhibited atypical gating function.
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Affiliation(s)
- Julia Campbell
- Department of Communication Sciences and Disorders; Central Sensory Processes Laboratory, University of Texas at Austin, Austin, Texas, USA
| | - Connor Bean
- Department of Communication Sciences and Disorders; Central Sensory Processes Laboratory, University of Texas at Austin, Austin, Texas, USA
| | - Alison LaBrec
- Department of Communication Sciences and Disorders; Central Sensory Processes Laboratory, University of Texas at Austin, Austin, Texas, USA
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40
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Hertrich I, Dietrich S, Ackermann H. Cortical phase locking to accelerated speech in blind and sighted listeners prior to and after training. BRAIN AND LANGUAGE 2018; 185:19-29. [PMID: 30025355 DOI: 10.1016/j.bandl.2018.07.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 07/06/2018] [Accepted: 07/06/2018] [Indexed: 06/08/2023]
Abstract
Cross-correlation of magnetoencephalography (MEG) with time courses derived from the speech signal has shown differences in phase-locking between blind subjects able to comprehend accelerated speech and sighted controls. The present training study contributes to disentangle the effects of blindness and training. Both subject groups (baseline: n = 16 blind, 13 sighted; trained: 10 blind, 3 sighted) were able to enhance speech comprehension up to ca. 18 syllables per second. MEG responses phase-locked to syllable onsets were captured in five pre-defined source locations comprising left and right auditory cortex (A1), right visual cortex (V1), left inferior frontal gyrus (IFG) and left pre-supplementary motor area. Phase locking in A1 was consistently increased while V1 showed opposite training effects in blind and sighted subjects. Also the IFG showed some group differences indicating enhanced top-down strategies in sighted subjects while blind subjects may have a more fine-grained bottom-up resolution for accelerated speech.
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Affiliation(s)
- Ingo Hertrich
- Department of Neurology, Hertie Institute for Clinical Brain Research, University of Tübingen, Germany.
| | - Susanne Dietrich
- Department of Psychology, Evolutionary Cognition (Cognitive Sciences), University of Tübingen, Germany
| | - Hermann Ackermann
- Department of Neurology, Hertie Institute for Clinical Brain Research, University of Tübingen, Germany
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41
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Gansonre C, Højlund A, Leminen A, Bailey C, Shtyrov Y. Task-free auditory EEG paradigm for probing multiple levels of speech processing in the brain. Psychophysiology 2018; 55:e13216. [PMID: 30101984 DOI: 10.1111/psyp.13216] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 05/09/2018] [Accepted: 05/09/2018] [Indexed: 11/26/2022]
Abstract
While previous studies on language processing highlighted several ERP components in relation to specific stages of sound and speech processing, no study has yet combined them to obtain a comprehensive picture of language abilities in a single session. Here, we propose a novel task-free paradigm aimed at assessing multiple levels of speech processing by combining various speech and nonspeech sounds in an adaptation of a multifeature passive oddball design. We recorded EEG in healthy adult participants, who were presented with these sounds in the absence of sound-directed attention while being engaged in a primary visual task. This produced a range of responses indexing various levels of sound processing and language comprehension: (a) P1-N1 complex, indexing obligatory auditory processing; (b) P3-like dynamics associated with involuntary attention allocation for unusual sounds; (c) enhanced responses for native speech (as opposed to nonnative phonemes) from ∼50 ms from phoneme onset, indicating phonological processing; (d) amplitude advantage for familiar real words as opposed to meaningless pseudowords, indexing automatic lexical access; (e) topographic distribution differences in the cortical activation of action verbs versus concrete nouns, likely linked with the processing of lexical semantics. These multiple indices of speech-sound processing were acquired in a single attention-free setup that does not require any task or subject cooperation; subject to future research, the present protocol may potentially be developed into a useful tool for assessing the status of auditory and linguistic functions in uncooperative or unresponsive participants, including a range of clinical or developmental populations.
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Affiliation(s)
- Christelle Gansonre
- Center of Functionally Integrative Neuroscience (CFIN), Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Andreas Højlund
- Center of Functionally Integrative Neuroscience (CFIN), Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Alina Leminen
- Center of Functionally Integrative Neuroscience (CFIN), Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.,Cognitive Brain Research Unit, Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Christopher Bailey
- Center of Functionally Integrative Neuroscience (CFIN), Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Yury Shtyrov
- Center of Functionally Integrative Neuroscience (CFIN), Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.,Laboratory of Behavioural Neurodynamics, St. Petersburg State University, St. Petersburg, Russia
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Swords GM, Nguyen LT, Mudar RA, Llano DA. Auditory system dysfunction in Alzheimer disease and its prodromal states: A review. Ageing Res Rev 2018; 44:49-59. [PMID: 29630950 DOI: 10.1016/j.arr.2018.04.001] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 04/03/2018] [Accepted: 04/04/2018] [Indexed: 01/15/2023]
Abstract
Recent findings suggest that both peripheral and central auditory system dysfunction occur in the prodromal stages of Alzheimer Disease (AD), and therefore may represent early indicators of the disease. In addition, loss of auditory function itself leads to communication difficulties, social isolation and poor quality of life for both patients with AD and their caregivers. Developing a greater understanding of auditory dysfunction in early AD may shed light on the mechanisms of disease progression and carry diagnostic and therapeutic importance. Herein, we review the literature on hearing abilities in AD and its prodromal stages investigated through methods such as pure-tone audiometry, dichotic listening tasks, and evoked response potentials. We propose that screening for peripheral and central auditory dysfunction in at-risk populations is a low-cost and effective means to identify early AD pathology and provides an entry point for therapeutic interventions that enhance the quality of life of AD patients.
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Affiliation(s)
| | - Lydia T Nguyen
- Neuroscience Program, University of Illinois at Urbana-Champaign, United States; Department of Speech and Hearing Science, University of Illinois at Urbana-Champaign, United States
| | - Raksha A Mudar
- Neuroscience Program, University of Illinois at Urbana-Champaign, United States; Department of Speech and Hearing Science, University of Illinois at Urbana-Champaign, United States
| | - Daniel A Llano
- University of Illinois College of Medicine, United States; Neuroscience Program, University of Illinois at Urbana-Champaign, United States; Department of Molecular and Integrative Physiology, University of Illinois at Urbana-Champaign, United States; Beckman Institute for Advanced Science and Technology, Urbana, IL, United States.
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Abstract
In this paper we describe an open-access collection of multimodal neuroimaging data in schizophrenia for release to the community. Data were acquired from approximately 100 patients with schizophrenia and 100 age-matched controls during rest as well as several task activation paradigms targeting a hierarchy of cognitive constructs. Neuroimaging data include structural MRI, functional MRI, diffusion MRI, MR spectroscopic imaging, and magnetoencephalography. For three of the hypothesis-driven projects, task activation paradigms were acquired on subsets of ~200 volunteers which examined a range of sensory and cognitive processes (e.g., auditory sensory gating, auditory/visual multisensory integration, visual transverse patterning). Neuropsychological data were also acquired and genetic material via saliva samples were collected from most of the participants and have been typed for both genome-wide polymorphism data as well as genome-wide methylation data. Some results are also presented from the individual studies as well as from our data-driven multimodal analyses (e.g., multimodal examinations of network structure and network dynamics and multitask fMRI data analysis across projects). All data will be released through the Mind Research Network's collaborative informatics and neuroimaging suite (COINS).
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Motomura E, Inui K, Nishihara M, Tanahashi M, Kakigi R, Okada M. Prepulse Inhibition of the Auditory Off-Response: A Magnetoencephalographic Study. Clin EEG Neurosci 2018; 49:152-158. [PMID: 28490194 DOI: 10.1177/1550059417708914] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A weak preceding sound stimulus attenuates the startle response evoked by an intense sound stimulus. Like startle reflexes, change-related auditory responses are suppressed by a weak leading stimulus (ie, a prepulse). We aim to examine whether a prepulse inhibits cerebral responses to the sound offset and how the prepulse magnitude affects the degree of the prepulse inhibition (PPI). Using magnetoencephalography, we recorded the Off-P50m elicited by an offset of a train sound of 100-Hz clicks in 12 healthy subjects. A single click slightly louder (+1.5, +3, or +5 dB) than the background sound of 80 dB was inserted 50 ms before the sound offset as a prepulse. We performed a dipole source analysis of the Off-P50m, and we measured its latency and amplitude using the source strength waveforms. The origin of the Off-P50m was estimated to be the auditory cortex on both hemispheres. The Off-P50m was clearly attenuated by the prepulses, and the degree of PPI was greater with a louder prepulse. The Off-P50m is considered to be a simple change-related response, which does not overlap with a processing of incoming sounds. Thus, the Off-P50m and its PPI comprise a valuable tool for investigating the neural inhibitory system.
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Affiliation(s)
- Eishi Motomura
- 1 Department of Neuropsychiatry, Mie University Graduate School of Medicine, Tsu, Japan
| | - Koji Inui
- 2 Institute for Developmental Research, Aichi Human Service Center, Kasugai, Japan.,3 Department of Integrative Physiology, National Institute for Physiological Sciences, Okazaki, Japan
| | - Makoto Nishihara
- 4 Multidisciplinary Pain Center, Aichi Medical University, Nagakute, Japan
| | - Megumi Tanahashi
- 1 Department of Neuropsychiatry, Mie University Graduate School of Medicine, Tsu, Japan
| | - Ryusuke Kakigi
- 3 Department of Integrative Physiology, National Institute for Physiological Sciences, Okazaki, Japan
| | - Motohiro Okada
- 1 Department of Neuropsychiatry, Mie University Graduate School of Medicine, Tsu, Japan
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Miller SE, Wathen K, Cash E, Pitts T, Cornell L. Auditory sensory gating predicts acceptable noise level. Hear Res 2018; 359:76-84. [DOI: 10.1016/j.heares.2017.12.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 12/14/2017] [Accepted: 12/23/2017] [Indexed: 01/19/2023]
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Differential modulation of the auditory steady state response and inhibitory gating by chloral hydrate anesthesia. Sci Rep 2018; 8:3683. [PMID: 29487299 PMCID: PMC5829141 DOI: 10.1038/s41598-018-21920-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 02/13/2018] [Indexed: 11/17/2022] Open
Abstract
Auditory steady state response (ASSR) and inhibitory gating (IG) are electrophysiological examinations commonly used to evaluate the sensory and cognitive functions of the brain. In some clinic examinations and animal experiments, general anesthesia is necessary to conduct electrophysiological recordings. However, the effects of anesthesia on ASSR and IG remain unclear. For this reason, we recorded local field potentials though electrodes implanted in different brain areas of rats: the auditory cortex (AC), hippocampus (HC), amygdala (AMY), and prefrontal cortex (PFC), and compared the characteristics of ASSR and IG under anesthetized and conscious conditions. We found that ASSR signals were the strongest in the AC, and decreased sequentially in the HP, AMY, and PFC. Chloral hydrate anesthesia significantly reduced the power and phase-locking of ASSR in the AC, HP, and AMY. In contrast, the extent of IG in the AC was weakest and it increased sequentially in the HP, AMY, and PFC. Anesthesia had less effect on the extent of IG. Our results suggest that ASSR and IG may originate from different neural circuits and that IG is more resistant to general anesthesia and therefore better suited to examining the functioning of non-auditory brain regions.
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Kim M, Yoon YB, Lee TH, Lee TY, Kwon JS. The effect of tDCS on auditory hallucination and P50 sensory gating in patients with schizophrenia: A pilot study. Schizophr Res 2018; 192:469-470. [PMID: 28416094 DOI: 10.1016/j.schres.2017.04.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 04/06/2017] [Accepted: 04/11/2017] [Indexed: 10/19/2022]
Affiliation(s)
- Minah Kim
- Department of Psychiatry, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Youngwoo Bryan Yoon
- Department of Brain and Cognitive Science, Seoul National University College of Natural Science, Seoul, Republic of Korea
| | - Tak Hyung Lee
- Department of Brain and Cognitive Science, Seoul National University College of Natural Science, Seoul, Republic of Korea
| | - Tae Young Lee
- Department of Neuropsychiatry, Seoul National University Hospital, Seoul, Republic of Korea.
| | - Jun Soo Kwon
- Department of Psychiatry, Seoul National University College of Medicine, Seoul, Republic of Korea; Department of Brain and Cognitive Science, Seoul National University College of Natural Science, Seoul, Republic of Korea
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Storozheva ZI, Kirenskaya AV, Gordeev MN, Kovaleva ME, Novototsky-Vlasov VY. COMT Genotype and Sensory and Sensorimotor Gating in High and Low Hypnotizable Subjects. Int J Clin Exp Hypn 2018; 66:83-105. [PMID: 29319456 DOI: 10.1080/00207144.2018.1396120] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
We investigated the association between hypnotizability, COMT polymorphism, P50 suppression ratio, and prepulse inhibition of acoustic startle response (ASR) in 21 high (HH) and 19 low (LH) hypnotizable subjects. The frequency of Met/Met carriers of COMT polymorphysm was higher in HH than in LH group (33.3% versus 10.6%, p = .049). Increased ASR amplitude and latency and decreased prepulse inhibition at 120 ms lead interval were found in the HH compared to the LH group. The effect of COMT genotype on prepulse inhibition was observed in LH group only. No between-group differences in P50 measures were found. The obtained results suppose the participation of dopamine system in mechanisms of hypnotizability and different allocation of attentional resources in HH and LH subjects.
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Affiliation(s)
- Zinaida I Storozheva
- a V. Serbsky Federal Medical Research Centre for Psychiatry and Narcology , Moscow , Russia
| | - Anna V Kirenskaya
- a V. Serbsky Federal Medical Research Centre for Psychiatry and Narcology , Moscow , Russia
| | - Mikhail N Gordeev
- b Institute of Psychotherapy and Clinical Psychology , Moscow , Russia
| | - Maria E Kovaleva
- a V. Serbsky Federal Medical Research Centre for Psychiatry and Narcology , Moscow , Russia
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Ku Y, Ahn JW, Kwon C, Kim DY, Suh MW, Park MK, Lee JH, Oh SH, Kim HC. The gap-prepulse inhibition deficit of the cortical N1-P2 complex in patients with tinnitus: The effect of gap duration. Hear Res 2017; 348:120-128. [DOI: 10.1016/j.heares.2017.03.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 02/21/2017] [Accepted: 03/02/2017] [Indexed: 01/10/2023]
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Abstract
A fundamental adaptive mechanism of auditory function is inhibitory gating (IG), which refers to the attenuation of neural responses to repeated sound stimuli. IG is drastically impaired in individuals with emotional and cognitive impairments (i.e. posttraumatic stress disorder). The objective of this study was to test whether chronic stress impairs the IG of the auditory cortex (AC). We used the standard two-tone stimulus paradigm and examined the parametric qualities of IG in the AC of rats by recording the electrophysiological signals of a single-unit and local field potential (LFP) simultaneously. The main results of this study were that most of the AC neurons showed a weaker response to the second tone than to the first tone, reflecting an IG of the repeated input. A fast negative wave of LFP showed consistent IG across the sampled AC sites, whereas a slow positive wave of LFP had less IG effect. IG was diminished following chronic restraint stress at both, the single-unit and LFP level, due to the increase in response to the second tone. This study provided new evidence that chronic stress disrupts the physiological function of the AC. Lay Summary The effects of chronic stress on IG were investigated by recording both, single-unit spike and LFP activities, in the AC of rats. In normal rats, most of the single-unit and N25 LFP activities in the AC showed an IG effect. IG was diminished following chronic restraint stress at both, the single-unit and LFP level.
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Affiliation(s)
- Lanlan Ma
- a Department of Physiology, College of Basic Medical Science , China Medical University , Shenyang , Liaoning Province , P.R. China
| | - Wai Li
- a Department of Physiology, College of Basic Medical Science , China Medical University , Shenyang , Liaoning Province , P.R. China
| | - Sibin Li
- a Department of Physiology, College of Basic Medical Science , China Medical University , Shenyang , Liaoning Province , P.R. China
| | - Xuejiao Wang
- a Department of Physiology, College of Basic Medical Science , China Medical University , Shenyang , Liaoning Province , P.R. China
| | - Ling Qin
- a Department of Physiology, College of Basic Medical Science , China Medical University , Shenyang , Liaoning Province , P.R. China
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