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Gong Y, Song P, Du X, Zhai Y, Xu H, Ye H, Bao X, Huang Q, Tu Z, Chen P, Zhao X, Pérez-González D, Malmierca MS, Yu X. Neural correlates of novelty detection in the primary auditory cortex of behaving monkeys. Cell Rep 2024; 43:113864. [PMID: 38421870 DOI: 10.1016/j.celrep.2024.113864] [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: 10/11/2023] [Revised: 01/11/2024] [Accepted: 02/08/2024] [Indexed: 03/02/2024] Open
Abstract
The neural mechanisms underlying novelty detection are not well understood, especially in relation to behavior. Here, we present single-unit responses from the primary auditory cortex (A1) from two monkeys trained to detect deviant tones amid repetitive ones. Results show that monkeys can detect deviant sounds, and there is a strong correlation between late neuronal responses (250-350 ms after deviant onset) and the monkeys' perceptual decisions. The magnitude and timing of both neuronal and behavioral responses are increased by larger frequency differences between the deviant and standard tones and by increasing the number of standard tones preceding the deviant. This suggests that A1 neurons encode novelty detection in behaving monkeys, influenced by stimulus relevance and expectations. This study provides evidence supporting aspects of predictive coding in the sensory cortex.
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Affiliation(s)
- Yumei Gong
- Department of Anesthesiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, Shanghai, China; Department of Anesthesia, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Zhejiang Provincial Key Laboratory of Precision Diagnosis and Therapy for Major Gynecological Diseases, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Hangzhou Extremely Weak Magnetic Field Major Science and Technology, Infrastructure Research Institute, Hangzhou 310000, China; Interdisciplinary Institute of Neuroscience and Technology, College of Biomedical, Engineering, and Instrument Science, Zhejiang University, Hangzhou, Zhejiang, China
| | - Peirun Song
- Department of Anesthesia, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Zhejiang Provincial Key Laboratory of Precision Diagnosis and Therapy for Major Gynecological Diseases, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xinyu Du
- Department of Anesthesia, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Zhejiang Provincial Key Laboratory of Precision Diagnosis and Therapy for Major Gynecological Diseases, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Yuying Zhai
- Department of Anesthesia, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Zhejiang Provincial Key Laboratory of Precision Diagnosis and Therapy for Major Gynecological Diseases, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Haoxuan Xu
- Interdisciplinary Institute of Neuroscience and Technology, College of Biomedical, Engineering, and Instrument Science, Zhejiang University, Hangzhou, Zhejiang, China
| | - Hangting Ye
- Department of Anesthesia, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Zhejiang Provincial Key Laboratory of Precision Diagnosis and Therapy for Major Gynecological Diseases, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xuehui Bao
- Interdisciplinary Institute of Neuroscience and Technology, College of Biomedical, Engineering, and Instrument Science, Zhejiang University, Hangzhou, Zhejiang, China
| | - Qianyue Huang
- Interdisciplinary Institute of Neuroscience and Technology, College of Biomedical, Engineering, and Instrument Science, Zhejiang University, Hangzhou, Zhejiang, China
| | - Zhiyi Tu
- Department of Anesthesiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, Shanghai, China
| | - Pei Chen
- Department of Anesthesiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, Shanghai, China
| | - Xuan Zhao
- Department of Anesthesiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, Shanghai, China
| | - David Pérez-González
- Cognitive and Auditory Neuroscience Laboratory (Lab 1), Institute of Neuroscience of Castilla y León (INCYL), University of Salamanca, Salamanca, Spain; Institute for Biomedical Research of Salamanca (IBSAL), Salamanca, Spain; Department of Basic Psychology, Psychobiology, and Methodology of Behavioral Sciences, Faculty of Psychology, University of Salamanca, Salamanca, Spain
| | - Manuel S Malmierca
- Cognitive and Auditory Neuroscience Laboratory (Lab 1), Institute of Neuroscience of Castilla y León (INCYL), University of Salamanca, Salamanca, Spain; Institute for Biomedical Research of Salamanca (IBSAL), Salamanca, Spain; Department of Cell Biology and Pathology, Faculty of Medicine, University of Salamanca, Salamanca, Spain.
| | - Xiongjie Yu
- Department of Anesthesiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, Shanghai, China; Department of Anesthesia, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Zhejiang Provincial Key Laboratory of Precision Diagnosis and Therapy for Major Gynecological Diseases, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
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Lu S, Chu M, Wang X, Wu Y, Hou Y, Liu A. Anterior temporal lobectomy improved mood status and quality of life in Chinese patients with mesial temporal lobe epilepsy: a single-arm cohort study. Chin Med J (Engl) 2023; 136:407-414. [PMID: 36867545 PMCID: PMC10106264 DOI: 10.1097/cm9.0000000000002094] [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: 07/06/2022] [Indexed: 03/04/2023] Open
Abstract
BACKGROUND Many studies have emphasized that selective resection of epileptic lesions in temoral lobe is associated with better preservation of cognition function; whether this applies to patients with refractory mesial temporal lobe epilepsy (MTLE) remains unknown. The objective of this study was to evaluate changes in cognitive functions, mood status, and quality of life after anterior temporal lobectomy in patients with refractory MTLE. METHODS This single-arm cohort study assessed cognitive function, mood status, and quality of life, as well as electroencephalography findings, in patients with refractory MTLE who underwent anterior temporal lobectomy at Xuanwu Hospital from January 2018 to March 2019. Pre- and post-operative characteristics were compared to evaluate the effects of surgery. RESULTS Anterior temporal lobectomy significantly reduced the frequencies of epileptiform discharges. The overall success rate of surgery was acceptable. Anterior temporal lobectomy did not result in significant changes in overall cognitive functions (P > 0.05), although changes in certain domains, including visuospatial ability, executive ability, and abstract thinking, were detected. Anterior temporal lobectomy resulted in improvements in anxiety and depression symptoms and quality of life. CONCLUSIONS Anterior temporal lobectomy reduced epileptiform discharges and incidence of post-operative seizures as well as resulted in improved mood status and quality of life without causing significant changes in cognitive function.
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Affiliation(s)
- Song Lu
- Department of Neurology, Xuanwu Hospital Capital Medical University, Beijing 100053, China
- Fuxing Hospital, Capital Medical University, Beijing 100069, China
| | - Min Chu
- Department of Neurology, Xuanwu Hospital Capital Medical University, Beijing 100053, China
| | - Xian Wang
- Department of Neurology, Xuanwu Hospital Capital Medical University, Beijing 100053, China
| | - Yating Wu
- Department of Neurology, Xuanwu Hospital Capital Medical University, Beijing 100053, China
| | - Yue Hou
- Department of Neurology, Xuanwu Hospital Capital Medical University, Beijing 100053, China
| | - Aihua Liu
- Department of Neurology, Xuanwu Hospital Capital Medical University, Beijing 100053, China
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Musiek FE, Chermak GD, Cone B. Central deafness: a review of past and current perspectives. Int J Audiol 2019; 58:605-617. [DOI: 10.1080/14992027.2019.1606458] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Frank E. Musiek
- Speech, Language and Hearing Sciences, University of Arizona, Tucson, AZ, USA
| | - Gail D. Chermak
- Speech & Hearing Sciences, Washington State University Health Sciences, Spokane, WA, USA
| | - Barbara Cone
- Speech, Language and Hearing Sciences, University of Arizona, Tucson, AZ, USA
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Zhao L, An D, Mao L, Tang X, He L, Zhou D. Mismatch negativity is abnormal but not lateralizing in temporal lobe epilepsy. Epilepsy Behav 2017; 68:35-40. [PMID: 28109987 DOI: 10.1016/j.yebeh.2016.11.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 10/24/2016] [Accepted: 11/03/2016] [Indexed: 11/17/2022]
Abstract
We investigated the changes of mismatch negativity (MMN) in patients with temporal lobe epilepsy (TLE) and explored the possible role of MMN in lateralizing their seizure focus. Thirty patients with TLE and thirty healthy controls were included. MMN was elicited in each subject. Patients with TLE were divided into three subgroups: unilateral left TLE; unilateral right TLE, and bilateral TLE. MMN amplitudes and latencies were compared between the patients with TLE and the control group, and also among the three subgroups of TLE, using repeated measures analyses of variance (ANOVA). To assess the lateralizing value of MMN, MMN latencies and amplitudes at the mastoid sites between the ipsilateral and contralateral sides of epileptic focus in patients with unilateral TLE were compared using t-test. Compared with controls, each subgroup of patients with TLE had longer latencies of MMN at both fronto-central and mastoid sites, but the amplitudes of MMN were not significantly different. The amplitudes and latencies of MMN were not significantly different between the ipsilateral and contralateral sides of seizure focus at mastoid sites. The present findings of prolonged latencies of MMN are suggestive of cognitive impairment in TLE. Both the mastoid sites and the fronto-central sites are involved, which likely reflect widespread cortical abnormalities in TLE. However, the changes of MMN during the interictal phase are not useful for lateralizing the seizure focus in patients with TLE.
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Affiliation(s)
- Lili Zhao
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Dongmei An
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Limei Mao
- Department of Electroneurophysiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xiangdong Tang
- Department of Electroneurophysiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Li He
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Dong Zhou
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
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Temporal Lobe Epilepsy Alters Auditory-motor Integration For Voice Control. Sci Rep 2016; 6:28909. [PMID: 27356768 PMCID: PMC4928116 DOI: 10.1038/srep28909] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Accepted: 06/13/2016] [Indexed: 11/16/2022] Open
Abstract
Temporal lobe epilepsy (TLE) is the most common drug-refractory focal epilepsy in adults. Previous research has shown that patients with TLE exhibit decreased performance in listening to speech sounds and deficits in the cortical processing of auditory information. Whether TLE compromises auditory-motor integration for voice control, however, remains largely unknown. To address this question, event-related potentials (ERPs) and vocal responses to vocal pitch errors (1/2 or 2 semitones upward) heard in auditory feedback were compared across 28 patients with TLE and 28 healthy controls. Patients with TLE produced significantly larger vocal responses but smaller P2 responses than healthy controls. Moreover, patients with TLE exhibited a positive correlation between vocal response magnitude and baseline voice variability and a negative correlation between P2 amplitude and disease duration. Graphical network analyses revealed a disrupted neuronal network for patients with TLE with a significant increase of clustering coefficients and path lengths as compared to healthy controls. These findings provide strong evidence that TLE is associated with an atypical integration of the auditory and motor systems for vocal pitch regulation, and that the functional networks that support the auditory-motor processing of pitch feedback errors differ between patients with TLE and healthy controls.
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Casali RL, Amaral MIRD, Boscariol M, Lunardi LL, Guerreiro MM, Matas CG, Colella-Santos MF. Comparison of auditory event-related potentials between children with benign childhood epilepsy with centrotemporal spikes and children with temporal lobe epilepsy. Epilepsy Behav 2016; 59:111-6. [PMID: 27131051 DOI: 10.1016/j.yebeh.2016.03.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 03/13/2016] [Accepted: 03/14/2016] [Indexed: 11/18/2022]
Abstract
The abnormal brain discharges observed in benign childhood epilepsy with centrotemporal spikes (BECTS) and temporal lobe epilepsy (TLE) are located close to areas responsible for auditory and language processing. This study aimed to analyze the results of auditory event-related potentials (P300) in children with BECTS and TLE in order to assess whether the epileptic activity in centrotemporal and temporal regions may compromise the integrity and physiology of auditory system structures. This was a prospective, comparative, and cross-sectional study. Group I (GI) consisted of 13 children diagnosed with BECTS, group II (GII), 7 children diagnosed with TLE, and control group (GIII), 16 healthy children, with no hearing or academic complaints. After neurological and basic audiological assessments, P300 was applied. The P300 latency and amplitude were compared between groups. Regarding latency, GI showed 324.1 (+31.5) ms, GII 336.3 (+23.5) ms, and GIII 318 (+27.7) ms. Amplitudes were 4.80 (+3.2) μV in GI, 4.7 (+2.5) μV in GII, and 5.8 (+2.4) μV in GIII. Although children with BECTS showed prolonged latencies and reduced amplitudes, these differences were not considered statistically significant. Children with TLE showed statistically significant prolonged P300 latency compared with the control group (P=0.037). We speculate that abnormal electrical discharges in centrotemporal and temporal regions led to the slowing of auditory processing in our sample.
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Affiliation(s)
- Raquel Leme Casali
- Child and Adolescent Health Program, Center for Investigation in Pediatrics, Faculty of Medical Sciences, State University of Campinas (FCM/UNICAMP), Brazil.
| | - Maria Isabel Ramos do Amaral
- Child and Adolescent Health Program, Center for Investigation in Pediatrics, Faculty of Medical Sciences, State University of Campinas (FCM/UNICAMP), Brazil.
| | - Mirela Boscariol
- Department of Neurology, Faculty of Medical Sciences, State University of Campinas (FCM/UNICAMP), Brazil.
| | - Luciane Lorencetti Lunardi
- Department of Neurology, Faculty of Medical Sciences, State University of Campinas (FCM/UNICAMP), Brazil.
| | | | - Carla Gentile Matas
- Department of Physiotherapy, Speech Therapy and Occupational Therapy, Faculty of Medicine, University of São Paulo (USP), Brazil.
| | - Maria Francisca Colella-Santos
- Department of Human Development and Rehabilitation, Faculty of Medical Sciences, State University of Campinas (FCM/UNICAMP), Brazil.
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Zhao F, Kang H, You L, Rastogi P, Venkatesh D, Chandra M. Neuropsychological deficits in temporal lobe epilepsy: A comprehensive review. Ann Indian Acad Neurol 2015; 17:374-82. [PMID: 25506156 PMCID: PMC4251008 DOI: 10.4103/0972-2327.144003] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 03/24/2014] [Accepted: 03/24/2014] [Indexed: 11/23/2022] Open
Abstract
Temporal lobe epilepsy (TLE) is the most prevalent form of complex partial seizures with temporal lobe origin of electrical abnormality. Studies have shown that recurrent seizures affect all aspects of cognitive functioning, including memory, language, praxis, executive functions, and social judgment, among several others. In this article, we will review these cognitive impairments along with their neuropathological correlates in a comprehensive manner. We will see that neuropsychological deficits are prevalent in TLE. Much of the effort has been laid on memory due to the notion that temporal lobe brain structures involved in TLE play a central role in consolidating information into memory. It seems that damage to the mesial structure of the temporal lobe, particularly the amygdale and hippocampus, has the main role in these memory difficulties and the neurobiological plausibility of the role of the temporal lobe in different aspects of memory. Here, we will cover the sub-domains of working memory and episodic memory deficits. This is we will further proceed to evaluate the evidences of executive function deficits in TLE and will see that set-shifting among other EFs is specifically affected in TLE as is social cognition. Finally, critical components of language related deficits are also found in the form of word-finding difficulties. To conclude, TLE affects several of cognitive function domains, but the etiopathogenesis of all these dysfunctions remain elusive. Further well-designed studies are needed for a better understanding of these disorders.
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Affiliation(s)
- Fengqing Zhao
- Department of Emergency, Yantai Yuhuangding Hospital, Yantai 264000, Shandong Province, China
| | - Hai Kang
- Department of Emergency, Yantai Yuhuangding Hospital, Yantai 264000, Shandong Province, China
| | - Libo You
- Operating RoomYantaishan Hospital, Yantai 264000, Shandong Province, China
| | - Priyanka Rastogi
- Department of Clinical Psychology, Ranchi Institute of Neuropsychiatry and Allied Sciences, Kanke, Ranchi, Jharkhand, India
| | - D Venkatesh
- Department of Physiology, M. S. Ramaiah Medical College, Mathikere, Bengaluru, Karnataka, India
| | - Mina Chandra
- Department of Psychiatry, Post Graduate Institute of Medical Education and Research and Dr. Ram Manohar Lohia Hospital, Formerly Willingdon Hospital, New Delhi, India
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8
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Effects of aging on the neuromagnetic mismatch detection to speech sounds. Biol Psychol 2015; 104:48-55. [DOI: 10.1016/j.biopsycho.2014.11.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2012] [Revised: 06/30/2014] [Accepted: 11/09/2014] [Indexed: 11/21/2022]
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9
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Lopes R, Simões MR, Ferraz L, Leal AJR. The mismatch negativity (MMN) potential as a tool for the functional mapping of temporal lobe epilepsies. Epilepsy Behav 2014; 33:87-93. [PMID: 24632428 DOI: 10.1016/j.yebeh.2014.02.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 02/10/2014] [Accepted: 02/13/2014] [Indexed: 11/17/2022]
Abstract
Temporal lobe epilepsies are associated with cognitive dysfunctions in memory which are important clues currently used clinically for the lateralization of the epileptic focus in evaluations for epilepsy surgery. Because these lobes also contain the primary auditory cortex, the study of auditory evoked potentials (AEPs) is a candidate, not yet established, complementary method to characterize epilepsy-induced dysfunction. We aimed to establish the clinical usefulness of auditory evoked potentials for the study of pediatric symptomatic temporal lobe epilepsies. A group of 17 patients (ages 4-16) with symptomatic epilepsies undergoing evaluation for epilepsy surgery epilepsy was submitted to auditory evoked potentials using 35-channel scalp EEG recordings. A control group of 10 healthy volunteers was studied with the same protocol. The P100 and mismatch negativity (MMN) potential latencies and normalized amplitudes were studied. We also performed a voxel-based lesion-symptom mapping (VLSM) to determine the anatomical areas associated with changes in the AEPs. Eleven patients had temporal lobe epilepsy, three had frontal lobe epilepsy, and three had occipital lobe epilepsy. Latencies for the P100 were normal in 15/17 and in 11/17 for the MMN, with no consistent correlation with the epilepsy type. The MMN amplitude was abnormal in 7/17 patients, all with temporal lobe epilepsies (sensitivity of 64%). Of these patients, four had a decreased MMN associated with a Heschl's gyrus lesion in the VLSM, and three had an increased MMN associated with hippocampal lesion. No extratemporal epilepsy showed MMN amplitude abnormalities (specificity of 100%). The P100 amplitude was abnormal in 3/17, two with temporal and one with frontal lobe epilepsies. The auditory MMN has a high specificity but a low sensitivity for temporal lobe epilepsy in symptomatic pediatric epilepsies. Amplitude decreases of the MMN are associated with homolateral Heschl's gyrus lesions, and MMN increases with hippocampal lesions.
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Affiliation(s)
- Ricardo Lopes
- Faculty of Psychology and Education Sciences, University of Coimbra, Rua do Colégio Novo, Apartado 6153, 3001-802 Coimbra, Portugal.
| | - Mário R Simões
- Faculty of Psychology and Education Sciences, University of Coimbra, Rua do Colégio Novo, Apartado 6153, 3001-802 Coimbra, Portugal
| | - Luís Ferraz
- Instituto Universitário de Lisboa (ISCTE-IUL), Cis-IUL, Lisbon, Portugal
| | - Alberto J R Leal
- Instituto Universitário de Lisboa (ISCTE-IUL), Cis-IUL, Lisbon, Portugal; Department of Neurophysiology, Centro Hospitalar Psiquiátrico de Lisboa, Lisbon, Portugal
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10
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Báez-Martín MM, Morales-Chacón LM, García-Maeso I, Estupiñán-Díaz B, Lorigados-Pedre L, García ME, Galvizu R, Bender JE, Cabrera-Abreu I, Pérez-Téllez Y, Galán L. Temporal lobe epilepsy surgery modulates the activity of auditory pathway. Epilepsy Res 2014; 108:748-54. [PMID: 24661428 DOI: 10.1016/j.eplepsyres.2014.02.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Revised: 02/06/2014] [Accepted: 02/28/2014] [Indexed: 10/25/2022]
Abstract
The purpose of this paper is to evaluate the effects of the anterior temporal lobectomy on the functional state of the auditory pathway in a group of drug-resistant epileptic patients, linking the electrophysiological results to the resection magnitude. Twenty-seven patients with temporal lobe epilepsy and a matched control group were studied. Auditory brainstem and middle latency responses (ABR and MLR respectively) were carried out before and after 6, 12 and 24 months surgical treatment. The volume and longitude of temporo-mesial resected structures were estimated on magnetic resonance images taken 6 months after surgery. Before the intervention the patients showed a significant delay of latency in waves III, V, Pa and Nb, with an increase in duration of I-V interval in comparison with healthy subjects (Mann-Whitney U-test, p<0.05). After resection, additional significant differences in waves I and Na latency were observed. Na and Pa waveforms showed a tendency to increase in amplitude, which became statistically significant 12 months after surgery for right hemisphere lobectomized patients in the midline electrode, and in Pa waveform for all patients in the temporal electrodes ipsilateral to resection (Wilcoxon test, p<0.05). In general, latency variations of MLR correlated with resection longitude, while changes in amplitude correlated with the volume of the resection in the middle temporal pole and amygdala (Pearson' correlation test, p<0.05). As a result, we assume that anterior temporal lobectomy provokes functional modifications into the auditory pathway, probably related to an indirect modulation of its activity by the temporo-mesial removed structures.
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Affiliation(s)
| | | | - Iván García-Maeso
- International Center for Neurological Restoration (CIREN), Ave. 25 #15805% 158-160, Havana 11300, Cuba
| | - Bárbara Estupiñán-Díaz
- International Center for Neurological Restoration (CIREN), Ave. 25 #15805% 158-160, Havana 11300, Cuba
| | - Lourdes Lorigados-Pedre
- International Center for Neurological Restoration (CIREN), Ave. 25 #15805% 158-160, Havana 11300, Cuba
| | - María Eugenia García
- International Center for Neurological Restoration (CIREN), Ave. 25 #15805% 158-160, Havana 11300, Cuba
| | - Reynaldo Galvizu
- International Center for Neurological Restoration (CIREN), Ave. 25 #15805% 158-160, Havana 11300, Cuba
| | - Juan E Bender
- International Center for Neurological Restoration (CIREN), Ave. 25 #15805% 158-160, Havana 11300, Cuba
| | - Ivette Cabrera-Abreu
- International Center for Neurological Restoration (CIREN), Ave. 25 #15805% 158-160, Havana 11300, Cuba
| | - Yamila Pérez-Téllez
- International Center for Neurological Restoration (CIREN), Ave. 25 #15805% 158-160, Havana 11300, Cuba
| | - Lídice Galán
- Cuban Neuroscience Center (CNC), Ave. 25 #15202% 158-160, Havana 11300, Cuba
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Hirose Y, Hara K, Miyajima M, Matsuda A, Maehara T, Hara M, Matsushima E, Ohta K, Matsuura M. Changes in the duration and frequency of deviant stimuli engender different mismatch negativity patterns in temporal lobe epilepsy. Epilepsy Behav 2014; 31:136-42. [PMID: 24412859 DOI: 10.1016/j.yebeh.2013.11.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Revised: 11/18/2013] [Accepted: 11/27/2013] [Indexed: 10/25/2022]
Abstract
Mismatch negativity (MMN) is an event-related potential (ERP) component that reflects preattentive sensory memory functions. Previous research revealed that MMN is generated by distinct sources in the frontal and temporal lobes. Event-related potential abnormalities have been shown in the vicinity of seizure foci in epilepsy. Additionally, no published study has investigated the MMN in response to variations in both frequency and duration deviants in patients with temporal lobe epilepsy (TLE). The aims of this study were to compare MMN changes between the frontocentral sites and the mastoid sites and to compare MMNs related to deviant stimuli with different durations and frequencies in patients with TLE. We recorded MMNs elicited by duration and frequency changes of deviant stimuli from 15 patients with TLE and 15 healthy control subjects. We found that mean MMN amplitudes related to duration deviants were lower in patients with TLE at the mastoid sites relative to controls, whereas the MMN amplitudes at the frontocentral sites did not differ between the two groups. There were no MMN differences related to frequency deviants between TLE subjects and controls at the frontocentral sites or the mastoid sites. Mismatch negativity parameters related to duration deviants did not correlate with those related to deviant frequencies in the group with TLE. The present findings suggest selective impairments among multiple mismatch generators in TLE and suggest that processing of temporal information of auditory stimuli is selectively disturbed in TLE. Changes in MMN amplitudes related to duration deviants at the mastoid sites may represent deficits in time-dependent processing in TLE.
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Affiliation(s)
- Yuka Hirose
- Department of Life Sciences and Bio-informatics, Graduate School of Health Care Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
| | - Keiko Hara
- Department of Life Sciences and Bio-informatics, Graduate School of Health Care Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Hara Clinic, Kanagawa, Japan
| | - Miho Miyajima
- Section of Liaison Psychiatry and Palliative Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Ayasa Matsuda
- Section of Liaison Psychiatry and Palliative Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Taketoshi Maehara
- Department of Neurosurgery, Tokyo Medical and Dental University, Tokyo, Japan
| | | | - Eisuke Matsushima
- Section of Liaison Psychiatry and Palliative Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Katsuya Ohta
- Department of Life Sciences and Bio-informatics, Graduate School of Health Care Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Section of Liaison Psychiatry and Palliative Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan; Onda-Daini Hospital, Chiba, Japan
| | - Masato Matsuura
- Department of Life Sciences and Bio-informatics, Graduate School of Health Care Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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Post-operative mismatch negativity recovery in a temporal lobe epilepsy patient with cavernous angioma. Clin Neurol Neurosurg 2012; 115:756-9. [PMID: 22817994 DOI: 10.1016/j.clineuro.2012.06.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Revised: 06/17/2012] [Accepted: 06/28/2012] [Indexed: 11/21/2022]
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