1
|
De Benedictis A, Rossi-Espagnet MC, de Palma L, Carai A, Marras CE. Networking of the Human Cerebellum: From Anatomo-Functional Development to Neurosurgical Implications. Front Neurol 2022; 13:806298. [PMID: 35185765 PMCID: PMC8854219 DOI: 10.3389/fneur.2022.806298] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 01/13/2022] [Indexed: 11/13/2022] Open
Abstract
In the past, the cerebellum was considered to be substantially involved in sensory-motor coordination. However, a growing number of neuroanatomical, neuroimaging, clinical and lesion studies have now provided converging evidence on the implication of the cerebellum in a variety of cognitive, affective, social, and behavioral processes as well. These findings suggest a complex anatomo-functional organization of the cerebellum, involving a dense network of cortical territories and reciprocal connections with many supra-tentorial association areas. The final architecture of cerebellar networks results from a complex, highly protracted, and continuous development from childhood to adulthood, leading to integration between short-distance connections and long-range extra-cerebellar circuits. In this review, we summarize the current evidence on the anatomo-functional organization of the cerebellar connectome. We will focus on the maturation process of afferent and efferent neuronal circuitry, and the involvement of these networks in different aspects of neurocognitive processing. The final section will be devoted to identifying possible implications of this knowledge in neurosurgical practice, especially in the case of posterior fossa tumor resection, and to discuss reliable strategies to improve the quality of approaches while reducing postsurgical morbidity.
Collapse
Affiliation(s)
- Alessandro De Benedictis
- Neurosurgery Unit, Department of Neurosciences, Bambino Gesù Children's Hospital, Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy
- *Correspondence: Alessandro De Benedictis
| | - Maria Camilla Rossi-Espagnet
- Neuroradiology Unit, Imaging Department, Bambino Gesù Children's Hospital, Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy
| | - Luca de Palma
- Neurology Unit, Department of Neurosciences, Bambino Gesù Children's Hospital, Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy
| | - Andrea Carai
- Neurosurgery Unit, Department of Neurosciences, Bambino Gesù Children's Hospital, Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy
| | - Carlo Efisio Marras
- Neurosurgery Unit, Department of Neurosciences, Bambino Gesù Children's Hospital, Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy
| |
Collapse
|
2
|
Evaluating the efficacy of hearing aids for tinnitus therapy - A Positron emission tomography study. Brain Res 2022; 1775:147728. [PMID: 34793755 DOI: 10.1016/j.brainres.2021.147728] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 11/10/2021] [Accepted: 11/11/2021] [Indexed: 12/26/2022]
Abstract
Brain imaging studies have revealed neural changes in chronic tinnitus patients that are not restricted to auditory brain areas; rather, the engagement of limbic system structures, attention and memory networks are has been noted. Hearing aids (HA) provide compensation for comorbid hearing loss and may decrease tinnitus-related perception and annoyance. Using resting state positron emission tomography our goal was to analyze metabolic and functional brain changes after six months of effective HA use by patients with chronic tinnitus and associated sensorineural hearing loss. 33 age and hearing loss matched participants with mild/moderate hearing loss were enrolled in this study: 19 with tinnitus, and 14 without tinnitus. Participants with tinnitus of more than 6 months with moderate/severe Tinnitus Handicap Inventory (THI) and Visual Analogue Scale (VAS) scores composed the tinnitus group. A full factorial 2X2 ANOVA was conducted for imaging analysis, with group (tinnitus and controls) and time point (pre-intervention and post-intervention) as factors. Six months after HA fitting, tinnitus scores reduced statistically and clinically. Analysis revealed increased glycolytic metabolism in the left orbitofrontal cortex, right temporal lobe and right hippocampus, and reduced glycolytic metabolism in the left cerebellum and inferior parietal lobe within the tinnitus group. The hearing loss control group showed no significant metabolic changes in the analysis. Parsing out the contribution of tinnitus independent of hearing loss, allowed us to identify areas implicated in declines in tinnitus handicap as a result of the intervention. Brain regions implicated in the present study may be part of chronic tinnitus-specific network.
Collapse
|
3
|
Zenke JK, Rahman S, Guo Q, Leung AWS, Gomaa NA. Central Processing in Tinnitus: fMRI Study Outlining Patterns of Activation Using an Auditory Discrimination Task in Normal Versus Tinnitus Patients. Otol Neurotol 2021; 42:e1170-e1180. [PMID: 34086638 DOI: 10.1097/mao.0000000000003194] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Elucidate brain activity differences between patients with tinnitus and controls. STUDY DESIGN Cross-sectional cohort study. SETTING Outpatient Otolaryngology clinic. PATIENTS Three cohorts; 8 controls, 12 with subjective idiopathic tinnitus (tinnitus without hearing loss), and 12 with both tinnitus and hearing loss. INTERVENTION An auditory oddball identification task was performed in fMRI scanner. MAIN OUTCOME MEASURES Task performance and Tinnitus Handicap Inventory (THI) scores were recorded. Brain activation maps were generated comparing deviant and standard tones as well as at rest. One-way and two-way T-contrasts were generated in addition to multiple regression modeling which identified significant brain regions predicting tinnitus, disease severity, duration, and task performance. RESULTS Task performance worsened in tinnitus patients with increased auditory workload, in terms of additional hearing loss. THI score and grade correlated with false alarms. The limbic system, heschel's gyrus, angular gyrus and cerebellum have a significant effect on both brain behavior in patients with tinnitus, and predictability of tinnitus and its behavioral implications. CONCLUSION Increased auditory workload resulted in poorer task performance. Moreover, it is possible to predict auditory task performance in patients with tinnitus by looking at the activity of specific regions of interest. Heschl's gyrus, angular gyrus, cerebellar, and limbic system activity are important contributors to neurological activity associated with tinnitus. Finally, predictive modeling may influence further research surrounding tinnitus treatment.
Collapse
Affiliation(s)
- Julianna K Zenke
- Division of Otolaryngology Head and Neck Surgery, Department of Surgery
| | | | - Qi Guo
- Faculty of Medicine and Dentistry
| | - Ada W S Leung
- Neuroscience and Mental Health Institute
- Department of Occupational Therapy, Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Nahla A Gomaa
- Division of Otolaryngology Head and Neck Surgery, Department of Surgery
- Faculty of Medicine and Dentistry
| |
Collapse
|
4
|
Gökçe E, Güneş E, Arı F, Hayme S, Nalçacı E. Comparison of the effects of open- and closed-skill exercise on cognition and peripheral proteins: A cross-sectional study. PLoS One 2021; 16:e0251907. [PMID: 34086693 PMCID: PMC8177547 DOI: 10.1371/journal.pone.0251907] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 05/05/2021] [Indexed: 11/23/2022] Open
Abstract
Previous research indicates that different exercise modes might create different effects on cognition and peripheral protein signals. This study aimed to compare the effects of long-term participation in an open and closed-skill exercise on cognitive functions and Brain-derived neurotrophic factor and Cathepsin B levels. 18 fencers, 18 swimmers, 18 sedentary controls between 18–25 years old participated in the study. Participants performed visuospatial working memory, verbal fluency and selective attention tasks. Blood samples were tested for Brain-derived neurotrophic factor and Cathepsin B using ELISA. The results showed that fencers performed superiorly on some part of visuospatial working memory, verbal fluency, and selective attention tasks than swimmers and sedentary controls. Athlete groups showed higher scores on some subtests of visuospatial working memory and selective attention tasks than sedentary controls. The basal serum Brain-derived neurotrophic factor level was not significant between the groups, but Cathepsin B was higher in fencers than swimmers and sedentary controls. The peripheric protein signal response to acute exercise was significantly higher in athletes, particularly in the open-skill group for Cathepsin B. Our research provided noteworthy results that more cognitively challenging exercise may provide more benefits for some aspects of cognition. Since our findings suggest that open-skill exercise improves specific types of executive-control functioning, this exercise mode might be included in training programs to support cognition and prevent cognitive impairment.
Collapse
Affiliation(s)
- Evrim Gökçe
- Ankara City Hospital, Sports Rehabilitation Laboratory, Ankara, Turkey
- Department of Physiology, Ankara University School of Medicine, Ankara, Turkey
- * E-mail:
| | - Emel Güneş
- Department of Physiology, Ankara University School of Medicine, Ankara, Turkey
| | - Fikret Arı
- Electrical and Electronics Engineering, Ankara University Faculty of Engineering, Ankara, Turkey
| | - Serhat Hayme
- Department of Biostatistics, Ankara University School of Medicine, Ankara, Turkey
| | - Erhan Nalçacı
- Department of Physiology, Ankara University School of Medicine, Ankara, Turkey
| |
Collapse
|
5
|
Hooshmandi M, Truong VT, Fields E, Thomas RE, Wong C, Sharma V, Gantois I, Soriano Roque P, Chalkiadaki K, Wu N, Chakraborty A, Tahmasebi S, Prager-Khoutorsky M, Sonenberg N, Suvrathan A, Watt AJ, Gkogkas CG, Khoutorsky A. 4E-BP2-dependent translation in cerebellar Purkinje cells controls spatial memory but not autism-like behaviors. Cell Rep 2021; 35:109036. [PMID: 33910008 DOI: 10.1016/j.celrep.2021.109036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 02/15/2021] [Accepted: 04/06/2021] [Indexed: 11/19/2022] Open
Abstract
Recent studies have demonstrated that selective activation of mammalian target of rapamycin complex 1 (mTORC1) in the cerebellum by deletion of the mTORC1 upstream repressors TSC1 or phosphatase and tensin homolog (PTEN) in Purkinje cells (PCs) causes autism-like features and cognitive deficits. However, the molecular mechanisms by which overactivated mTORC1 in the cerebellum engenders these behaviors remain unknown. The eukaryotic translation initiation factor 4E-binding protein 2 (4E-BP2) is a central translational repressor downstream of mTORC1. Here, we show that mice with selective ablation of 4E-BP2 in PCs display a reduced number of PCs, increased regularity of PC action potential firing, and deficits in motor learning. Surprisingly, although spatial memory is impaired in these mice, they exhibit normal social interaction and show no deficits in repetitive behavior. Our data suggest that, downstream of mTORC1/4E-BP2, there are distinct cerebellar mechanisms independently controlling social behavior and memory formation.
Collapse
Affiliation(s)
- Mehdi Hooshmandi
- Department of Anesthesia and Faculty of Dentistry, McGill University, Montreal, QC H3G 1Y6, Canada
| | - Vinh Tai Truong
- Department of Biochemistry and Goodman Cancer Research Centre, McGill University, Montreal, QC H3A 1A3, Canada
| | - Eviatar Fields
- Department of Biology, McGill University, Montreal, QC H3A 1A3, Canada; Integrated Program in Neuroscience, McGill University, Montreal, QC H3A 2B4, Canada
| | - Riya Elizabeth Thomas
- Integrated Program in Neuroscience, McGill University, Montreal, QC H3A 2B4, Canada; Centre for Research in Neuroscience, Research Institute of the McGill University Health Centre, Montreal QC, H3G1A4, Canada; Department of Neurology and Neurosurgery, Department of Pediatrics, McGill University, Montreal QC, H3G1A4, Canada
| | - Calvin Wong
- Department of Anesthesia and Faculty of Dentistry, McGill University, Montreal, QC H3G 1Y6, Canada
| | - Vijendra Sharma
- Department of Biochemistry and Goodman Cancer Research Centre, McGill University, Montreal, QC H3A 1A3, Canada
| | - Ilse Gantois
- Department of Biochemistry and Goodman Cancer Research Centre, McGill University, Montreal, QC H3A 1A3, Canada
| | - Patricia Soriano Roque
- Department of Anesthesia and Faculty of Dentistry, McGill University, Montreal, QC H3G 1Y6, Canada
| | - Kleanthi Chalkiadaki
- Division of Biomedical Research, Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, University Campus, 45110 Ioannina, Greece
| | - Neil Wu
- Department of Anesthesia and Faculty of Dentistry, McGill University, Montreal, QC H3G 1Y6, Canada
| | - Anindyo Chakraborty
- Department of Anesthesia and Faculty of Dentistry, McGill University, Montreal, QC H3G 1Y6, Canada
| | - Soroush Tahmasebi
- Department of Pharmacology and Regenerative Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA
| | | | - Nahum Sonenberg
- Department of Biochemistry and Goodman Cancer Research Centre, McGill University, Montreal, QC H3A 1A3, Canada
| | - Aparna Suvrathan
- Centre for Research in Neuroscience, Research Institute of the McGill University Health Centre, Montreal QC, H3G1A4, Canada; Department of Neurology and Neurosurgery, Department of Pediatrics, McGill University, Montreal QC, H3G1A4, Canada
| | - Alanna J Watt
- Department of Biology, McGill University, Montreal, QC H3A 1A3, Canada
| | - Christos G Gkogkas
- Division of Biomedical Research, Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, University Campus, 45110 Ioannina, Greece.
| | - Arkady Khoutorsky
- Department of Anesthesia and Faculty of Dentistry, McGill University, Montreal, QC H3G 1Y6, Canada; Alan Edwards Centre for Research on Pain, McGill University, Montreal, QC H3A 0G1, Canada.
| |
Collapse
|
6
|
Agarwal A, Kaur H, Agarwal A, Nehra A, Pandey S, Garg A, Faruq M, Rajan R, Shukla G, Goyal V, Srivastava AK. Cognitive impairment in spinocerebellar ataxia type 12. Parkinsonism Relat Disord 2021; 85:52-56. [PMID: 33740701 DOI: 10.1016/j.parkreldis.2021.03.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 02/25/2021] [Accepted: 03/09/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Cognitive impairment has now been recognised to be present in patients with several of spinocerebellar ataxias (SCAs). Cognitive impairment in patients with spinocerebellar ataxia type 12 has not been evaluated. OBJECTIVE To evaluate the cognitive impairment in patients diagnosed with spinocerebellar ataxia type 12 (SCA12). METHODS We conducted a cross sectional study and enrolled 30 (20 male and 10 female) genetically confirmed SCA12 patients and 30 healthy, age, gender and education matched individuals as controls. Cognitive domains were tested using a battery of validated neurocognitive tests. RESULT Mean age of patients was 51.6 ± 8.0 years and mean disease duration was 5.3 ± 3.0 years. Mean International Cooperative Ataxia Rating Scale (ICARS) score was 29.8 ± 12.5. SCA 12 patients scored significantly lower than controls in executive function and new learning ability. Other tested cognitive domains were also affected but did not reach statistical significance. Age, age at onset, severity of ataxia, disease duration and CAG repeat length did not correlate with cognitive impairment. CONCLUSION Cognitive impairment is a part of the spectrum of SCA12 and is characterized by dysfunction in executive function and new learning ability even early in the course of disease.
Collapse
Affiliation(s)
- Amit Agarwal
- Department of Neurology, All India Institute of Medical Sciences, New Delhi, India
| | - Harsimarpreet Kaur
- Division of Clinical Neuropsychology, Neurosciences Centre, All India Institute of Medical Sciences, New Delhi, India
| | - Ayush Agarwal
- Department of Neurology, All India Institute of Medical Sciences, New Delhi, India
| | - Ashima Nehra
- Division of Clinical Neuropsychology, Neurosciences Centre, All India Institute of Medical Sciences, New Delhi, India
| | - Shivam Pandey
- Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India
| | - Ajay Garg
- Department of Neuroradiology, All India Institute of Medical Sciences, New Delhi, India
| | - Mohammed Faruq
- Institute of Genomics and Integrative Biology, Mall Road, New Delhi, India
| | - Roopa Rajan
- Department of Neurology, All India Institute of Medical Sciences, New Delhi, India
| | - Garima Shukla
- Department of Neurology, All India Institute of Medical Sciences, New Delhi, India
| | - Vinay Goyal
- Department of Neurology, All India Institute of Medical Sciences, New Delhi, India
| | | |
Collapse
|
7
|
Craig BT, Morrill A, Anderson B, Danckert J, Striemer CL. Cerebellar lesions disrupt spatial and temporal visual attention. Cortex 2021; 139:27-42. [PMID: 33819679 DOI: 10.1016/j.cortex.2021.02.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 02/04/2021] [Accepted: 02/15/2021] [Indexed: 11/29/2022]
Abstract
The current study represents the first comprehensive examination of spatial, temporal and sustained attention following cerebellar damage. Results indicated that, compared to controls, cerebellar damage resulted in a larger cueing effect at the longest SOA - possibly reflecting a slowed the onset of inhibition of return (IOR) during a reflexive covert attention task, and reduced the ability to detect successive targets during an attentional blink task. However, there was little evidence to support the notion that cerebellar damage disrupted voluntary covert attention or the sustained attention to response task (SART). Lesion overlay data and supplementary voxel-based lesion symptom mapping (VLSM) analyses indicated that impaired performance on the reflexive covert attention and attentional blink tasks were related to damage to Crus II of the left posterior cerebellum. In addition, subsequent analyses indicated our results are not due to either general motor impairments or to damage to the deep cerebellar nuclei. Collectively these data demonstrate, for the first time, that the same cerebellar regions may be involved in both spatial and temporal visual attention.
Collapse
Affiliation(s)
- Brandon T Craig
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Psychology, MacEwan University, Edmonton, AB, Canada
| | - Adam Morrill
- Department of Psychology, MacEwan University, Edmonton, AB, Canada
| | - Britt Anderson
- Department of Psychology, University of Waterloo, Waterloo, ON, Canada
| | - James Danckert
- Department of Psychology, University of Waterloo, Waterloo, ON, Canada
| | - Christopher L Striemer
- Department of Psychology, MacEwan University, Edmonton, AB, Canada; Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada.
| |
Collapse
|
8
|
Severo Bem L, Gemir J, Cysneiros RRM, Azevedo HC. The Understanding of Pediatric Akinetic Mutism. Cureus 2021; 13:e12593. [PMID: 33542880 PMCID: PMC7849921 DOI: 10.7759/cureus.12593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Pediatric akinetic mutism syndrome is a clinical disease resulting from cerebellar injury and characterized by the absence of speech or reduced speech, emotional lability, there may also be hypotonia, oropharyngeal dysfunction/dysphagia, bladder and intestinal incontinence, or other behavioral disorders and neurological signals. It is described as the most recurrent complication in children, after posterior fossa tumor surgery, mainly related to cerebellar midline injuries. An increasing number of research and prospective reviews have provided valuable information on cerebellar mutism syndrome in recent years. The purpose of this review was to elucidate the pathophysiological basis and the predictive factors for this syndrome. Most cases of mutism are due to injury cerebellar tracts and cerebellar-cerebral circuits, involving particularly distinct points of the dentate-thalamus-cortical and dentato-rubro-thalamus-cortical. Advanced neuroimaging techniques, such as tractography and perfusion studies, have contributed to demonstrating changes in these pathways in patients with pediatric cerebellar mutism.
Collapse
Affiliation(s)
- Luiz Severo Bem
- Neurological Surgery, Hospital da Restauração, Recife, BRA.,Neuroscience Post-Graduate Program, Federal University of Pernambuco, Recife, BRA
| | - Júlia Gemir
- Neurological Surgery, University of Pernambuco, Recife, BRA
| | | | | |
Collapse
|
9
|
O’Brien S, Andrew D, Zabihhosseinian M, Yielder P, Murphy B. Proximal Upper Limb Sensorimotor Integration in Response to Novel Motor Skill Acquisition. Brain Sci 2020; 10:brainsci10090581. [PMID: 32842625 PMCID: PMC7563374 DOI: 10.3390/brainsci10090581] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/15/2020] [Accepted: 08/18/2020] [Indexed: 11/16/2022] Open
Abstract
Previous studies have shown significant changes in cortical and subcortical evoked potential activity levels in response to motor training with the distal upper-limb muscles. However, no studies to date have assessed the neurological processing changes in somatosensory evoked potentials (SEPs) associated with motor training whole-arm movements utilizing proximal upper-limb muscles. The proximal upper-limb muscles are a common source of work-related injuries, due to repetitive glenohumeral movements. Measuring neurophysiological changes following performance of a proximal motor task provide insight into potential neurophysiological changes associated with occupational postures and movements involving proximal upper limb muscles. This study sought to assess the impact of a novel motor skill acquisition task on neural processing of the proximal upper-limb muscle groups, through the measurement of short-latency median nerve SEPs. One group of 12 participants completed a novel motor training task, consisting of tracing a sinusoidal waveform varying in amplitude and frequency. Baseline SEP measurements were recorded from each participant, followed by a mental recitation control task. Pre-test SEP measurements were then recorded, followed by the motor training task, and post-test SEP recordings. The participants completed the tracing with their right thumb, using glenohumeral rotation only to move their hand. Significant improvements in task accuracy were demonstrated, indicating that motor acquisition had occurred. Significant changes were also seen in the N11, N13, N20, N24, P25, and the N30 SEP peaks were seen following the motor training task. Conclusion: Early SEPs appear to be a sensitive measure of changes in sensorimotor integration in response to novel motor skill acquisition within the proximal upper-limb muscles.
Collapse
|
10
|
Zeng C, Xue Z, Ross B, Zhang M, Liu Z, Wu G, Ouyang X, Li D, Pu W. Salience-thalamic circuit uncouples in major depressive disorder, but not in bipolar depression. J Affect Disord 2020; 269:43-50. [PMID: 32217342 DOI: 10.1016/j.jad.2020.03.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 02/15/2020] [Accepted: 03/02/2020] [Indexed: 02/01/2023]
Abstract
BACKGROUND Bipolar depression (BDD) and major depressive disorder (MDD) are two diseases both characterized by depressed mood and diminished interest or pleasure. Recent neuroimaging studies have implicated the thalamo-cortical circuit in mood disorders, and the present study aimed to map thalamo-cortical connectivity to explore the dissociable and common abnormalities between bipolar and major depression in this circuit. METHOD Applying resting-state functional magnetic resonance imaging (fMRI), we mapped the thalamo-cortical circuit using a fine-grained thalamic atlas with 8 sub-regions bilaterally in 38 BDD patients, 42 MDD patients and 39 healthy controls (HCs). Correlation analysis was then performed between thalamo-cortical connectivity and clinical variables. RESULT The findings showed that both patient groups exhibited prefronto-thalamo-cerebellar and sensorimotor-thalamic hypoconnectivity, while the abnormalities in MDD were more extensive. Particularly, MDD group showed decreased thalamic connectivity with the salience network including the insula, anterior cingulate cortex (ACC), and striatum. No correlations were found between the abnormal thalamo-cortical connectivity and clinical symptoms in either patient group. LIMITATION Most patients in our study were taking drugs at the time of scanning, which may confound our findings. CONCLUSION Our finding suggest that the thalamo-cortical hypofunction is a common neuro-substrate for BDD and MDD. Specifically, the hypoconnectivity between the thalamus and salience network including the insula, ACC and striatum may be a distinguished biomarker for MDD, which may help to differentiate these two emotional disorders.
Collapse
Affiliation(s)
- Can Zeng
- Department of Psychiatry, the Second Xiangya Hospital, Central South University,Changsha, China; The China National Clinical Research Center for Mental Health Disorders, Changsha, China; China National Technology Institute on Mental Disorders, Changsha, China; Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China; Mental Health Institute of Central South University, Changsha, China; Education college, Shaoguan University, Shaoguan, China
| | - Zhimin Xue
- Department of Psychiatry, the Second Xiangya Hospital, Central South University,Changsha, China; The China National Clinical Research Center for Mental Health Disorders, Changsha, China; China National Technology Institute on Mental Disorders, Changsha, China; Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China; Mental Health Institute of Central South University, Changsha, China
| | - Brendan Ross
- McGill Faculty of Medicine, Montreal, QC, Canada
| | - Manqi Zhang
- Department of Psychiatry, the Second Xiangya Hospital, Central South University,Changsha, China; Medical Psychological Center, the Second Xiangya Hospital, Central South University, Changsha, Hunan , China
| | - Zhening Liu
- Department of Psychiatry, the Second Xiangya Hospital, Central South University,Changsha, China; The China National Clinical Research Center for Mental Health Disorders, Changsha, China; China National Technology Institute on Mental Disorders, Changsha, China; Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China; Mental Health Institute of Central South University, Changsha, China
| | - Guowei Wu
- Department of Psychiatry, the Second Xiangya Hospital, Central South University,Changsha, China; The China National Clinical Research Center for Mental Health Disorders, Changsha, China; China National Technology Institute on Mental Disorders, Changsha, China; Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China
| | - Xuan Ouyang
- Department of Psychiatry, the Second Xiangya Hospital, Central South University,Changsha, China; The China National Clinical Research Center for Mental Health Disorders, Changsha, China; China National Technology Institute on Mental Disorders, Changsha, China; Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China; Mental Health Institute of Central South University, Changsha, China
| | - Dan Li
- Department of Geriatrics, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Weidan Pu
- The China National Clinical Research Center for Mental Health Disorders, Changsha, China; Medical Psychological Center, the Second Xiangya Hospital, Central South University, Changsha, Hunan , China.
| |
Collapse
|
11
|
Tremblay SA, Chapman CA, Courtemanche R. State-Dependent Entrainment of Prefrontal Cortex Local Field Potential Activity Following Patterned Stimulation of the Cerebellar Vermis. Front Syst Neurosci 2019; 13:60. [PMID: 31736718 PMCID: PMC6828963 DOI: 10.3389/fnsys.2019.00060] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Accepted: 10/08/2019] [Indexed: 11/24/2022] Open
Abstract
The cerebellum is involved in sensorimotor, cognitive, and emotional functions through cerebello-cerebral connectivity. Cerebellar neurostimulation thus likely affects cortical circuits, as has been shown in studies using cerebellar stimulation to treat neurological disorders through modulation of frontal EEG oscillations. Here we studied the effects of different frequencies of cerebellar stimulation on oscillations and coherence in the cerebellum and prefrontal cortex in the urethane-anesthetized rat. Local field potentials were recorded in the right lateral cerebellum (Crus I/II) and bilaterally in the prefrontal cortex (frontal association area, FrA) in adult male Sprague-Dawley rats. Stimulation was delivered to the cerebellar vermis (lobule VII) using single pulses (0.2 Hz for 60 s), or repeated pulses at 1 Hz (30 s), 5 Hz (10 s), 25 Hz (2 s), and 50 Hz (1 s). Effects of stimulation were influenced by the initial state of EEG activity which varies over time during urethane-anesthesia; 1 Hz stimulation was more effective when delivered during the slow-wave state (Stage 1), while stimulation with single-pulse, 25, and 50 Hz showed stronger effects during the activated state (Stage 2). Single-pulses resulted in increases in oscillatory power in the delta and theta bands for the cerebellum, and in frequencies up to 80 Hz in cortical sites. 1 Hz stimulation induced a decrease in 0–30 Hz activity and increased activity in the 30–200 Hz range, in the right FrA. 5 Hz stimulation reduced power in high frequencies in Stage 1 and induced mixed effects during Stage 2.25 Hz stimulation increased cortical power at low frequencies during Stage 2, and increased power in higher frequency bands during Stage 1. Stimulation at 50 Hz increased delta-band power in all recording sites, with the strongest and most rapid effects in the cerebellum. 25 and 50 Hz stimulation also induced state-dependent effects on cerebello-cortical and cortico-cortical coherence at high frequencies. Cerebellar stimulation can therefore entrain field potential activity in the FrA and drive synchronization of cerebello-cortical and cortico-cortical networks in a frequency-dependent manner. These effects highlight the role of the cerebellar vermis in modulating large-scale synchronization of neural networks in non-motor frontal cortex.
Collapse
Affiliation(s)
- Stéfanie A Tremblay
- Department of Health, Kinesiology, and Applied Physiology, Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, Canada
| | - C Andrew Chapman
- Department of Psychology, Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, Canada
| | - Richard Courtemanche
- Department of Health, Kinesiology, and Applied Physiology, Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, Canada
| |
Collapse
|
12
|
Thier P, Markanday A. Role of the Vermal Cerebellum in Visually Guided Eye Movements and Visual Motion Perception. Annu Rev Vis Sci 2019; 5:247-268. [PMID: 31299168 DOI: 10.1146/annurev-vision-091718-015000] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The cerebellar cortex is a crystal-like structure consisting of an almost endless repetition of a canonical microcircuit that applies the same computational principle to different inputs. The output of this transformation is broadcasted to extracerebellar structures by way of the deep cerebellar nuclei. Visually guided eye movements are accommodated by different parts of the cerebellum. This review primarily discusses the role of the oculomotor part of the vermal cerebellum [the oculomotor vermis (OMV)] in the control of visually guided saccades and smooth-pursuit eye movements. Both types of eye movements require the mapping of retinal information onto motor vectors, a transformation that is optimized by the OMV, considering information on past performance. Unlike the role of the OMV in the guidance of eye movements, the contribution of the adjoining vermal cortex to visual motion perception is nonmotor and involves a cerebellar influence on information processing in the cerebral cortex.
Collapse
Affiliation(s)
- Peter Thier
- Department of Cognitive Neurology, Hertie Institute for Clinical Brain Research, University of Tübingen, 72076 Tübingen, Germany;
| | - Akshay Markanday
- Department of Cognitive Neurology, Hertie Institute for Clinical Brain Research, University of Tübingen, 72076 Tübingen, Germany;
| |
Collapse
|
13
|
Brissenden JA, Somers DC. Cortico-cerebellar networks for visual attention and working memory. Curr Opin Psychol 2019; 29:239-247. [PMID: 31202085 DOI: 10.1016/j.copsyc.2019.05.003] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 05/03/2019] [Accepted: 05/14/2019] [Indexed: 01/22/2023]
Abstract
Cerebellar cortex, which is cytoarchitectonically homogenous, can be functionally differentiated by connectivity differences across the cerebral cortex. The cerebral cortical dorsal attention network exhibits strong, selective connectivity with a set of cerebellar circuits, including lobule VIIb/VIIIa. Recent findings demonstrate that lobule VIIb/VIIIa exhibits functional properties characteristic of the cortical dorsal attention network: task-specific activation; working memory load-dependent responses; and the representation of visuospatial location. Moreover, functional cortico-cerebellar subnetworks exhibit topographic specialization for different aspects of visual attentional processing. Thus, cerebellar lobule VIIb/VIIIa, rather than simply supporting motor functions, appears to be an integral part of the brain's visual attentional circuitry. More generally, these findings suggest that parallel cortico-cerebellar networks may play highly specific functional roles in a broad range of cognitive processes.
Collapse
Affiliation(s)
- James A Brissenden
- Department of Psychological and Brain Sciences, Boston University, 64 Cummington Mall, Boston, MA 02215, United States
| | - David C Somers
- Department of Psychological and Brain Sciences, Boston University, 64 Cummington Mall, Boston, MA 02215, United States.
| |
Collapse
|
14
|
Allen M, Handy J, Miller D, Servatius R. Avoidance learning and classical eyeblink conditioning as model systems to explore a learning diathesis model of PTSD. Neurosci Biobehav Rev 2019; 100:370-386. [DOI: 10.1016/j.neubiorev.2019.03.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 03/04/2019] [Accepted: 03/05/2019] [Indexed: 01/09/2023]
|
15
|
Lupo M, Olivito G, Iacobacci C, Clausi S, Romano S, Masciullo M, Molinari M, Cercignani M, Bozzali M, Leggio M. The cerebellar topography of attention sub-components in spinocerebellar ataxia type 2. Cortex 2018; 108:35-49. [PMID: 30121445 DOI: 10.1016/j.cortex.2018.07.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 06/07/2018] [Accepted: 07/16/2018] [Indexed: 01/10/2023]
Abstract
Spinocerebellar ataxia type 2 (SCA2) is an autosomal dominant neurodegenerative disease characterized by a progressive cerebellar syndrome and multiple-domain cognitive impairments. The cerebellum is known to contribute to distinct functional networks related to higher-level functions. The aims of the present study were to investigate the different sub-components of attention and to analyse possible correlations between attention deficits and specific cerebellar regions in SCA2 patients. To this purpose, 11 SCA2 patients underwent an exhaustive attention battery that evaluated several attention sub-components. The SCA2 group performed below the normal range in tasks assessing selective attention, divided attention, and sustained attention, obtaining negative Z-scores. These results were confirmed by non-parametric Mann-Whitney U tests that showed significant differences between SCA2 and control subjects in the same sub-components of the attention battery, allowing us to speculate on cerebellar involvement when a high cognitive demand is required (i.e., multisensory integration, sequencing, prediction of events, and inhibition of inappropriate response behaviours). The voxel-based morphometry analysis showed a pattern of significantly reduced grey matter volume in specific cerebellar lobules. In particular, the SCA2 patients showed significant grey matter loss in bilateral regions of the anterior cerebellar hemisphere (IV) and in the posterior lobe (VI-IX) and posterior vermis (VI-IX). Statistical analysis found significant correlations between grey matter reductions in the VIIb/VIIIa cerebellar lobules and impairments in Sustained and Divided Attention tasks and between grey matter reduction in the vermal VI lobule and impairment in the Go/NoGo task. For the first time, the study demonstrated the involvement of specific cerebellar lobules in different sub-components of the attention domain, giving further support to the inclusion of the cerebellum within the attention network.
Collapse
Affiliation(s)
- Michela Lupo
- Ataxia Laboratory, IRCCS Fondazione Santa Lucia, Rome, Italy.
| | - Giusy Olivito
- Ataxia Laboratory, IRCCS Fondazione Santa Lucia, Rome, Italy; Neuroimaging Laboratory, IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Claudia Iacobacci
- Ataxia Laboratory, IRCCS Fondazione Santa Lucia, Rome, Italy; PhD Program in Behavioral Neuroscience, Sapienza University of Rome, Rome, Italy
| | - Silvia Clausi
- Ataxia Laboratory, IRCCS Fondazione Santa Lucia, Rome, Italy; Department of Psychology, Sapienza University of Rome, Rome, Italy
| | - Silvia Romano
- Department of Neurosciences, Mental Health and Sensory Organs (NESMOS), "Sapienza" University of Rome, Sant'Andrea Hospital, Rome, Italy
| | | | - Marco Molinari
- Neurorehabilitation 1 and Spinal Center, Robotic Neurorehabilitation Lab, IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Mara Cercignani
- Neuroimaging Laboratory, IRCCS Fondazione Santa Lucia, Rome, Italy; Clinical Imaging Science Center, Brighton and Sussex Medical School, Brighton, UK
| | - Marco Bozzali
- Neuroimaging Laboratory, IRCCS Fondazione Santa Lucia, Rome, Italy; Clinical Imaging Science Center, Brighton and Sussex Medical School, Brighton, UK
| | - Maria Leggio
- Ataxia Laboratory, IRCCS Fondazione Santa Lucia, Rome, Italy; Department of Psychology, Sapienza University of Rome, Rome, Italy
| |
Collapse
|
16
|
Slater JL, Tate MC. Timing Deficits in ADHD: Insights From the Neuroscience of Musical Rhythm. Front Comput Neurosci 2018; 12:51. [PMID: 30034331 PMCID: PMC6043674 DOI: 10.3389/fncom.2018.00051] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 06/18/2018] [Indexed: 12/22/2022] Open
Abstract
Everyday human behavior relies upon extraordinary feats of coordination within the brain. In this perspective paper, we argue that the rich temporal structure of music provides an informative context in which to investigate how the brain coordinates its complex activities in time, and how that coordination can be disrupted. We bring insights from the neuroscience of musical rhythm to considerations of timing deficits in Attention Deficit/Hyperactivity Disorder (ADHD), highlighting the significant overlap between neural systems involved in processing musical rhythm and those implicated in ADHD. We suggest that timing deficits warrant closer investigation since they could lead to the identification of potentially informative phenotypes, tied to neurobiological and genetic factors. Our novel interdisciplinary approach builds upon recent trends in both fields of research: in the neuroscience of rhythm, an increasingly nuanced understanding of the specific contributions of neural systems to rhythm processing, and in ADHD, an increasing focus on differentiating phenotypes and identifying distinct etiological pathways associated with the disorder. Finally, we consider the impact of musical experience on rhythm processing and the potential value of musical rhythm in therapeutic interventions.
Collapse
Affiliation(s)
- Jessica L. Slater
- Department of Neurological Surgery, Northwestern University, Chicago, IL, United States
| | - Matthew C. Tate
- Department of Neurological Surgery, Northwestern University, Chicago, IL, United States
- Department of Neurology, Northwestern University, Chicago, IL, United States
| |
Collapse
|
17
|
Superior Visual Search and Crowding Abilities Are Not Characteristic of All Individuals on the Autism Spectrum. J Autism Dev Disord 2018; 48:3499-3512. [DOI: 10.1007/s10803-018-3601-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
18
|
Molinari M, Masciullo M, Bulgheroni S, D'Arrigo S, Riva D. Cognitive aspects: sequencing, behavior, and executive functions. HANDBOOK OF CLINICAL NEUROLOGY 2018; 154:167-180. [PMID: 29903438 DOI: 10.1016/b978-0-444-63956-1.00010-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The question posed today is not whether the cerebellum plays a role in cognition, but instead, how the cerebellum contributes to cognitive processes, even in the developmental age. The central role of the cerebellum in many areas of human abilities, motor as well as cognitive, in childhood as well as in adulthood, is well established but cerebellar basic functioning is still not clear and is much debated. Of particular interest is the changing face of cerebellar influence on motor, higher cognitive, and behavioral functioning when adult and developmental lesions are compared. The idea that the cerebellum might play quite different roles during development and in adulthood has been proposed, and evidence from experimental and clinical literature has been provided, including for sequencing, behavioral aspects, and executive functions Still, more data are needed to fully understand the changes of cerebrocerebellar interactions within the segregated loops which connect cerebrum and cerebellum, not only between childhood and adulthood but also in health and disease.
Collapse
Affiliation(s)
- Marco Molinari
- Department of Neurorehabilitation, Fondazione Santa Lucia, Rome, Italy.
| | - Marcella Masciullo
- Translational Clinical Research Division, Fondazione Santa Lucia, Rome, Italy
| | - Sara Bulgheroni
- Translational Clinical Research Division, Fondazione Santa Lucia, Rome, Italy; Carlo Besta Neurological Institute, Milan, Italy
| | - Stefano D'Arrigo
- Translational Clinical Research Division, Fondazione Santa Lucia, Rome, Italy; Carlo Besta Neurological Institute, Milan, Italy
| | - Daria Riva
- Translational Clinical Research Division, Fondazione Santa Lucia, Rome, Italy; Carlo Besta Neurological Institute, Milan, Italy
| |
Collapse
|
19
|
Lalani SJ, Duffield TC, Trontel HG, Bigler ED, Abildskov TJ, Froehlich A, Prigge MBD, Travers BG, Anderson JS, Zielinski BA, Alexander A, Lange N, Lainhart JE. Auditory attention in autism spectrum disorder: An exploration of volumetric magnetic resonance imaging findings. J Clin Exp Neuropsychol 2017; 40:502-517. [PMID: 29072106 DOI: 10.1080/13803395.2017.1373746] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Studies have shown that individuals with autism spectrum disorder (ASD) tend to perform significantly below typically developing individuals on standardized measures of attention, even when controlling for IQ. The current study sought to examine within ASD whether anatomical correlates of attention performance differed between those with average to above-average IQ (AIQ group) and those with low-average to borderline ability (LIQ group) as well as in comparison to typically developing controls (TDC). Using automated volumetric analyses, we examined regional volume of classic attention areas including the superior frontal gyrus, anterior cingulate cortex, and precuneus in ASD AIQ (n = 38) and LIQ (n = 18) individuals along with 30 TDC. Auditory attention performance was assessed using subtests of the Test of Memory and Learning (TOMAL) compared among the groups and then correlated with regional brain volumes. Analyses revealed group differences in attention. The three groups did not differ significantly on any auditory attention-related brain volumes; however, trends toward significant size-attention function interactions were observed. Negative correlations were found between the volume of the precuneus and auditory attention performance for the AIQ ASD group, indicating larger volume related to poorer performance. Implications for general attention functioning and dysfunctional neural connectivity in ASD are discussed.
Collapse
Affiliation(s)
- Sanam J Lalani
- a Department of Psychology , Brigham Young University , Provo , UT , USA
| | - Tyler C Duffield
- a Department of Psychology , Brigham Young University , Provo , UT , USA
| | - Haley G Trontel
- a Department of Psychology , Brigham Young University , Provo , UT , USA
| | - Erin D Bigler
- a Department of Psychology , Brigham Young University , Provo , UT , USA.,b Neuroscience Center , Brigham Young University , Provo , UT , USA.,c Department of Psychology , University of Utah , Salt Lake City , UT , USA.,d Department of Pediatrics , University of Utah , Salt Lake City , UT , USA
| | - Tracy J Abildskov
- a Department of Psychology , Brigham Young University , Provo , UT , USA
| | - Alyson Froehlich
- c Department of Psychology , University of Utah , Salt Lake City , UT , USA
| | - Molly B D Prigge
- d Department of Pediatrics , University of Utah , Salt Lake City , UT , USA
| | - Brittany G Travers
- e Waisman Laboratory for Brain Imaging and Behavior , University of Wisconsin-Madison , Madison , WI , USA.,f Department of Kinesiology , University of Wisconsin-Madison , Madison , WI , USA
| | - Jeffrey S Anderson
- g Department of Radiology , University of Utah , Salt Lake City , UT , USA
| | - Brandon A Zielinski
- d Department of Pediatrics , University of Utah , Salt Lake City , UT , USA.,h Department of Neurology, School of Medicine , University of Utah , Salt Lake City , UT , USA
| | - Andrew Alexander
- e Waisman Laboratory for Brain Imaging and Behavior , University of Wisconsin-Madison , Madison , WI , USA.,i Department of Medical Physics , University of Wisconsin-Madison , Madison , WI , USA.,j Department of Psychiatry , University of Wisconsin-Madison , Madison , WI , USA
| | - Nicholas Lange
- k Department of Psychiatry , Harvard Medical School , Boston , MA , USA.,l Neurostatistics Laboratory , McLean Hospital , Belmont , MA , USA
| | - Janet E Lainhart
- e Waisman Laboratory for Brain Imaging and Behavior , University of Wisconsin-Madison , Madison , WI , USA.,j Department of Psychiatry , University of Wisconsin-Madison , Madison , WI , USA
| |
Collapse
|
20
|
Kansal K, Yang Z, Fishman AM, Sair HI, Ying SH, Jedynak BM, Prince JL, Onyike CU. Structural cerebellar correlates of cognitive and motor dysfunctions in cerebellar degeneration. Brain 2017; 140:707-720. [PMID: 28043955 DOI: 10.1093/brain/aww327] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2016] [Accepted: 10/21/2016] [Indexed: 11/12/2022] Open
Abstract
See King et al. (doi:10.1093/aww348) for a scientific commentary on this article.Detailed mapping of clinical dysfunctions to the cerebellar lobules in disease populations is necessary to establish the functional significance of lobules implicated in cognitive and motor functions in normal subjects. This study constitutes the first quantitative examination of the lobular correlates of a broad range of cognitive and motor phenomena in cerebellar disease. We analysed cross-sectional data from 72 cases with cerebellar disease and 36 controls without cerebellar disease. Cerebellar lobule volumes were derived from a graph-cut based segmentation algorithm. Sparse partial least squares, a variable selection approach, was used to identify lobules associated with motor function, language, executive function, memory, verbal learning, perceptual organization and visuomotor coordination. Motor dysfunctions were chiefly associated with the anterior lobe and posterior lobule HVI. Confrontation naming, noun fluency, recognition, and perceptual organization did not have cerebellar associations. Verb and phonemic fluency, working memory, cognitive flexibility, immediate and delayed recall, verbal learning, and visuomotor coordination were variably associated with HVI, Crus I, Crus II, HVII B and/or HIX. Immediate and delayed recall also showed associations with the anterior lobe. These findings provide preliminary anatomical evidence for a functional topography of the cerebellum first defined in task-based functional magnetic resonance imaging studies of normal subjects and support the hypotheses that (i) cerebellar efferents target frontal lobe neurons involved in forming action representations and new search strategies; (ii) there is greater involvement of the cerebellum when immediate recall tasks involve more complex verbal stimuli (e.g. longer words versus digits); and (iii) it is involved in spontaneous retrieval of long-term memory. More generally, they provide an anatomical background for studies that seek the mechanisms by which cognitive and motor dysfunctions arise from cerebellar degeneration. Beyond replicating these findings, future research should employ experimental tasks to probe the integrity of specific functions in cerebellar disease, and new imaging methods to quantitatively map atrophy across the cerebellum.
Collapse
Affiliation(s)
- Kalyani Kansal
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University, Baltimore, Maryland, USA
| | - Zhen Yang
- Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, Maryland, USA
| | - Ann M Fishman
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University, Baltimore, Maryland, USA.,Department of Radiology and Radiological Science, Johns Hopkins University, Baltimore, Maryland, USA
| | - Haris I Sair
- Department of Radiology and Radiological Science, Johns Hopkins University, Baltimore, Maryland, USA
| | - Sarah H Ying
- Department of Radiology and Radiological Science, Johns Hopkins University, Baltimore, Maryland, USA
| | - Bruno M Jedynak
- Department of Mathematics and Statistics, Portland State University, Portland, Oregon, USA
| | - Jerry L Prince
- Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, Maryland, USA
| | - Chiadi U Onyike
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University, Baltimore, Maryland, USA
| |
Collapse
|
21
|
Matsui H. Dopamine system, cerebellum, and nucleus ruber in fish and mammals. Dev Growth Differ 2017; 59:219-227. [PMID: 28547762 DOI: 10.1111/dgd.12357] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Revised: 04/09/2017] [Accepted: 04/09/2017] [Indexed: 12/26/2022]
Abstract
Small teleost fish including zebrafish and medaka have been used as animal models for research because of their small body size, vast amounts of eggs produced, their rapid development, low husbandry costs, and transparency during embryogenesis. Although the body size and appearance seem different, fish and mammals including human still possess anatomical and functional similarities in their brains. This review summarizes the similarities of brain structures and functions between teleost fish and mammalian brains, focusing on the dopamine system, functional regionalization of the cerebellum, and presence of the nucleus ruber.
Collapse
Affiliation(s)
- Hideaki Matsui
- Department of Neuroscience of Disease, Center for Transdisciplinary Research, Niigata University, 757, Ichibancho, Asahimachidori, Chuo-ku, Niigata-shi, Niigata, 951-8585, Japan.,Brain Research Institute, Niigata University, 757, Ichibancho, Asahimachidori, Chuo-ku, Niigata-shi, Niigata, 951-8585, Japan
| |
Collapse
|
22
|
The Role of the Pediatric Cerebellum in Motor Functions, Cognition, and Behavior: A Clinical Perspective. Neuroimaging Clin N Am 2017; 26:317-29. [PMID: 27423796 DOI: 10.1016/j.nic.2016.03.003] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This article discusses the contribution of the pediatric cerebellum to locomotion, ocular motor control, speech articulation, cognitive function, and behavior modulation. Hypotheses on cerebellar function are discussed. Clinical features in patients with cerebellar disorders are outlined. Cerebellar abnormalities in cognitive and behavioral disorders are detailed.
Collapse
|
23
|
Randolph B, Burack JA. Visual filtering and covert orienting in persons with Down syndrome. INTERNATIONAL JOURNAL OF BEHAVIORAL DEVELOPMENT 2016. [DOI: 10.1080/016502500383287] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
A forced-choice reaction time (RT) task was used to examine the efficiency of visual filtering (the inhibition of processing of irrelevant stimuli) and covert orienting (shifts of visual attention independent of eye movement) components of attention in persons with Down syndrome ( n = 20) and children of average intelligence ( n = 20) matched for mental age (MA) (average MA = approximately 5.4 years). Conditions varied with regard to presence or absence of distractors, and the validity (valid, invalid, or neutral) of location cues. Contrary to expectations, persons with Down syndrome and MA-matched children of average intelligence at approximately age 5 showed similar patterns of performance on a task that required filtering distracting stimuli and searching for relevant information in the visual field. Both groups responded more efficiently to a target preceded by a valid cue as compared to a target preceded by an invalid or neutral cue. In addition, performance was more efficient with a target that was presented without irrelevant information as compared to one that was flanked on either side by extraneous, nontarget information and therefore necessitated filtering for efficient performance. These two findings indicate that: (1) disengaging from the location of an incorrect cue, and then searching for, locating, and responding to a target requires more time and attention than simply locating and responding to a target that has been validly cued; and (2) processing and responding to a target flanked by extraneous information entails filtering, and therefore requires more time and resources than simply responding to a target without distractors. In general, the development of visual reflexive, covert orienting, and filtering are intact in persons with Down syndrome relative to their level of functioning at an MA level of approximately 5 years, a period that is critical in the development of attentional processes.
Collapse
|
24
|
Abstract
For most ofthe 20th century, the brain science community held the view that the cerebellum was exclusively involved in motor control functions. Over the past 20 years, this has largely been replaced by the idea that the cerebellum participates in a variety of motor and nonmotor functions and, importantly, may contain neurons that display longand short-term plasticity, encoding behavioral and cognitive functions. The authors present evidence for the involvement of the cerebellum in motor and nonmotor functions and further suggest that the cerebellum’s internal neural architecture and connectivity patterns with other areas ofthe brain determine the range offunctions that the cerebellum participates in. To stress the interactive nature ofthe structure, the authors suggest that the phenomena that the cerebellum encodes may be best described generally as the psychological functions ofthe cerebellum instead ofattempting to categorize all functions as either motor or nonmotor.
Collapse
|
25
|
Koustenis E, Hernáiz Driever P, de Sonneville L, Rueckriegel SM. Executive function deficits in pediatric cerebellar tumor survivors. Eur J Paediatr Neurol 2016; 20:25-37. [PMID: 26631949 DOI: 10.1016/j.ejpn.2015.11.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 10/30/2015] [Accepted: 11/01/2015] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND AIMS Besides motor function the cerebellum subserves frontal lobe functions. Thus, we investigated executive functions in pediatric posterior fossa tumor survivors. METHODS We tested information processing, aspects of attention, planning and intelligence in 42 pediatric posterior fossa tumor survivors (mean age 14.63 yrs, SD 5.03). Seventeen low-grade tumor patients (LGCT) were treated with surgery only and 25 high-grade tumors patients (HGCT) received postsurgical adjuvant treatment. We evaluated simple reaction time, executive functioning, i.e. visuospatial memory, inhibition, and mental flexibility using the Amsterdam Neuropsychological Tasks program, whereas forward thinking was assessed with the Tower of London-test. Intelligence was determined using the Wechsler Intelligence Scale. Ataxia was assessed with the International Cooperative Ataxia Rating Scale. RESULTS About one third of each patient group showed forward thinking scores below one standard deviation of the norm. Impaired forward thinking correlated significantly with degree of ataxia (r = -0.39, p = 0.03) but not with fluid intelligence. Both patient groups exhibited executive function deficits in accuracy and reaction speed in more difficult tasks involving information speed and attention flexibility. Still, HGCT patients were significantly slower and committed more errors. Working memory was inferior in HGCT patients. CONCLUSION Pediatric cerebellar tumor survivors with different disease and treatment related brain damage exhibit similar patterns of impairment in executive functioning, concerning forward thinking, inhibition and mental flexibility. The deficits are larger in high-grade tumor patients. The pattern of function loss seen in both groups is most probably due to comparable lesions to cerebro-cerebellar circuits that are known to modulate critical executive functions.
Collapse
Affiliation(s)
- Elisabeth Koustenis
- Department of Pediatric Oncology and Hematology, Charité-Universitätsmedizin Berlin, Germany
| | - Pablo Hernáiz Driever
- Department of Pediatric Oncology and Hematology, Charité-Universitätsmedizin Berlin, Germany.
| | - Leo de Sonneville
- Leiden Institute for Brain and Cognition, Department of Clinical Child and Adolescent Studies, Leiden University, The Netherlands
| | - Stefan M Rueckriegel
- Department of Pediatric Oncology and Hematology, Charité-Universitätsmedizin Berlin, Germany; Department of Neurosurgery, University Hospital Würzburg, Germany
| |
Collapse
|
26
|
Pedroarena-Leal N, Ruge D. Cerebellar neurophysiology in Gilles de la Tourette syndrome and its role as a target for therapeutic intervention. J Neuropsychol 2015; 11:327-346. [DOI: 10.1111/jnp.12091] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Revised: 10/07/2015] [Indexed: 01/01/2023]
Affiliation(s)
- Nicole Pedroarena-Leal
- Sobell Department of Motor Neuroscience and Movement Disorders; UCL-Institute of Neurology; University College London; UK
| | - Diane Ruge
- Sobell Department of Motor Neuroscience and Movement Disorders; UCL-Institute of Neurology; University College London; UK
| |
Collapse
|
27
|
Curtice KJ, Leavitt LS, Chase K, Raghuraman S, Horvath MP, Olivera BM, Teichert RW. Classifying neuronal subclasses of the cerebellum through constellation pharmacology. J Neurophysiol 2015; 115:1031-42. [PMID: 26581874 DOI: 10.1152/jn.00894.2015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 11/12/2015] [Indexed: 11/22/2022] Open
Abstract
A pressing need in neurobiology is the comprehensive identification and characterization of neuronal subclasses within the mammalian nervous system. To this end, we used constellation pharmacology as a method to interrogate the neuronal and glial subclasses of the mouse cerebellum individually and simultaneously. We then evaluated the data obtained from constellation-pharmacology experiments by cluster analysis to classify cells into neuronal and glial subclasses, based on their functional expression of glutamate, acetylcholine, and GABA receptors, among other ion channels. Conantokin peptides were used to identify N-methyl-d-aspartate (NMDA) receptor subtypes, which revealed that neurons of the young mouse cerebellum expressed NR2A and NR2B NMDA receptor subunits. Additional pharmacological tools disclosed differential expression of α-amino-3-hydroxy-5-methyl-4-isoxazloepropionic, nicotinic acetylcholine, and muscarinic acetylcholine receptors in different neuronal and glial subclasses. Certain cell subclasses correlated with known attributes of granule cells, and we combined constellation pharmacology with genetically labeled neurons to identify and characterize Purkinje cells. This study illustrates the utility of applying constellation pharmacology to classify neuronal and glial subclasses in specific anatomical regions of the brain.
Collapse
Affiliation(s)
- Kigen J Curtice
- Department of Biology, University of Utah, Salt Lake City, Utah
| | - Lee S Leavitt
- Department of Biology, University of Utah, Salt Lake City, Utah
| | - Kevin Chase
- Department of Biology, University of Utah, Salt Lake City, Utah
| | | | | | | | | |
Collapse
|
28
|
Barron DS, Eickhoff SB, Clos M, Fox PT. Human pulvinar functional organization and connectivity. Hum Brain Mapp 2015; 36:2417-31. [PMID: 25821061 DOI: 10.1002/hbm.22781] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2015] [Accepted: 02/23/2015] [Indexed: 11/11/2022] Open
Abstract
The human pulvinar is the largest thalamic area in terms of size and cortical connectivity. Although much is known about regional pulvinar structural anatomy, relatively little is known about pulvinar functional anatomy in humans. Cooccurrence of experimentally induced brain activity is a traditional metric used to establish interregional brain connectivity and forms the foundation of functional neuroimaging connectivity analyses. Because functional neuroimaging studies report task-related coactivations within a standardized space, meta-analysis of many whole-brain studies can define the brain's interregional coactivation across many tasks. Such an analysis can also detect and define variations in functional coactivations within a particular region. Here we use coactivation profiles reported in ∼ 7,700 functional neuroimaging studies to parcellate and define the pulvinar's functional anatomy. Parcellation of the pulvinar's coactivation profile identified five clusters per pulvinar of distinct functional coactivation. These clusters showed a high degree of symmetry across hemispheres and correspondence with the human pulvinar's cytoarchitecture. We investigated the functional coactivation profiles of each resultant pulvinar cluster with meta-analytic methods. By referencing existent neuroimaging and lesion-deficit literature, these profiles make a case for regional pulvinar specialization within the larger human attention-controlling network. Reference to this literature also informs specific hypotheses that can be tested in subsequent studies in healthy and clinical populations.
Collapse
Affiliation(s)
- Daniel S Barron
- Research Imaging Institute, University of Texas Health Science Center at San Antonio, Texas, USA.,Yale University School of Medicine, New Haven, Connecticut, USA
| | - Simon B Eickhoff
- Institute of Neuroscience and Medicine (INM-1), Research Centre Jülich, Jülich, Germany.,Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Mareike Clos
- Institute of Clinical Neuroscience and Medical Psychology, Heinrich Heine University, Düsseldorf, Germany.,Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Peter T Fox
- Research Imaging Institute, University of Texas Health Science Center at San Antonio, Texas, USA.,Department of Radiology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA.,Research Service, South Texas Veterans Health Care System, San Antonio, Texas, USA.,Department of Neurology, University of Texas Health Science Center, San Antonio, Texas, USA.,State Key Laboratory for Brain and Cognitive Sciences, University of Hong Kong, Hong Kong.,Neuroimaging Laboratory, Shenzhen University School of Medicine, Shenzhen, China
| |
Collapse
|
29
|
Striemer CL, Chouinard PA, Goodale MA, de Ribaupierre S. Overlapping neural circuits for visual attention and eye movements in the human cerebellum. Neuropsychologia 2015; 69:9-21. [DOI: 10.1016/j.neuropsychologia.2015.01.024] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Revised: 01/13/2015] [Accepted: 01/16/2015] [Indexed: 11/30/2022]
|
30
|
Cerebellar Neurophysiology in Gilles de la Tourette Syndrome and its Role as a Target for Therapeutic Intervention. ARCHIVES OF NEUROSCIENCE 2014. [DOI: 10.5812/archneurosci.24311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
31
|
|
32
|
Parker KL, Narayanan NS, Andreasen NC. The therapeutic potential of the cerebellum in schizophrenia. Front Syst Neurosci 2014; 8:163. [PMID: 25309350 PMCID: PMC4163988 DOI: 10.3389/fnsys.2014.00163] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2014] [Accepted: 08/22/2014] [Indexed: 12/19/2022] Open
Abstract
The cognitive role of the cerebellum is critically tied to its distributed connections throughout the brain. Accumulating evidence from anatomical, structural and functional imaging, and lesion studies advocate a cognitive network involving indirect connections between the cerebellum and non-motor areas in the prefrontal cortex. Cerebellar stimulation dynamically influences activity in several regions of the frontal cortex and effectively improves cognition in schizophrenia. In this manuscript, we summarize current literature on the cingulocerebellar circuit and we introduce a method to interrogate this circuit combining opotogenetics, neuropharmacology, and electrophysiology in awake-behaving animals while minimizing incidental stimulation of neighboring cerebellar nuclei. We propose the novel hypothesis that optogenetic cerebellar stimulation can restore aberrant frontal activity and rescue impaired cognition in schizophrenia. We focus on how a known cognitive region in the frontal cortex, the anterior cingulate, is influenced by the cerebellum. This circuit is of particular interest because it has been confirmed using tracing studies, neuroimaging reveals its role in cognitive tasks, it is conserved from rodents to humans, and diseases such as schizophrenia and autism appear in its aberrancy. Novel tract tracing results presented here provide support for how these two areas communicate. The primary pathway involves a disynaptic connection between the cerebellar dentate nuclei (DN) and the anterior cingulate cortex. Secondarily, the pathway from cerebellar fastigial nuclei (FN) to the ventral tegmental area, which supplies dopamine to the prefrontal cortex, may play a role as schizophrenia characteristically involves dopamine deficiencies. We hope that the hypothesis described here will inspire new therapeutic strategies targeting currently untreatable cognitive impairments in schizophrenia.
Collapse
|
33
|
Colombo J, Zavaleta N, Kannass KN, Lazarte F, Albornoz C, Kapa LL, Caulfield LE. Zinc supplementation sustained normative neurodevelopment in a randomized, controlled trial of Peruvian infants aged 6-18 months. J Nutr 2014; 144:1298-305. [PMID: 24850625 PMCID: PMC4093986 DOI: 10.3945/jn.113.189365] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 01/07/2014] [Accepted: 05/05/2014] [Indexed: 11/14/2022] Open
Abstract
A double-blind, randomized clinical trial was conducted to determine the effects of prevention of zinc deficiency on cognitive and sensorimotor development during infancy. At 6 mo of age, infants were randomly assigned to be administered a daily liquid supplement containing 10 mg/d of zinc (zinc sulfate), 10 mg/d of iron (ferrous sulfate), and 0.5 mg/d of copper (copper oxide), or an identical daily liquid supplement containing only 10 mg/d of iron and 0.5 mg/d of copper. Various controls were implemented to ensure adherence to the supplement protocol. A battery of developmental assessments was administered from 6 to 18 mo of age that included a visual habituation/recognition memory task augmented with heart rate at 6, 9, and 12 mo of age; the Bayley Scales of Infant Development, 2nd edition (BSID2) at 6, 12, and 18 mo; the A-not-B error task at 9 and 12 mo; and free-play attention tasks at 12 and 18 mo. Only infants supplemented with zinc had the normative decline in look duration from 6 to 12 mo during habituation and a normative decline in shifting between objects on free-play multiple-object attention tasks from 12 to 18 mo of age. The 2 groups did not differ on any of the psychophysiologic indices, the BSID2, or the A-not-B error task. The findings are consistent with zinc supplementation supporting a profile of normative information processing and active attentional profiles during the first 2 y of life. This trial was registered at clinicaltrials.gov as NCT00589264.
Collapse
Affiliation(s)
- John Colombo
- Schiefelbusch Institute for Life Span Studies and Department of Psychology, University of Kansas, Lawrence, KS
| | | | | | | | | | - Leah L Kapa
- Department of Speech, Language, and Hearing Sciences, University of Arizona, Tucson, AZ; and
| | - Laura E Caulfield
- Center for Human Nutrition, Department of International Health, Bloomberg School of Public Health, The Johns Hopkins University, Baltimore, MD
| |
Collapse
|
34
|
Schwartze M, Kotz SA. A dual-pathway neural architecture for specific temporal prediction. Neurosci Biobehav Rev 2013; 37:2587-96. [DOI: 10.1016/j.neubiorev.2013.08.005] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Revised: 07/19/2013] [Accepted: 08/15/2013] [Indexed: 10/26/2022]
|
35
|
Thymoquinone Prevents β-Amyloid Neurotoxicity in Primary Cultured Cerebellar Granule Neurons. Cell Mol Neurobiol 2013; 33:1159-69. [DOI: 10.1007/s10571-013-9982-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Accepted: 08/24/2013] [Indexed: 12/30/2022]
|
36
|
Bäckman L, Almkvist O, Andersson J, Nordberg A, Winblad B, Reineck R, Långström B. Brain activation in young and older adults during implicit and explicit retrieval. J Cogn Neurosci 2013; 9:378-91. [PMID: 23965013 DOI: 10.1162/jocn.1997.9.3.378] [Citation(s) in RCA: 155] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Positron emission tomography was used to study regional cerebral blood flow (H2(15)O method) in groups of young and older adults during implicit and explicit retrieval, following a procedure devised by Squire et al. (1992). At study, subjects were exposed to four lists of words. Following list presentation, subjects were presented with three-letter word stems under four conditions: (1) silent viewing, (2) completion of word stems that could not form words from the study list, with the instruction to provide the first word that came to mind (baseline), (3) completion of word stems, half of which could form words from the study list, with the instruction to provide the first word that came to mind (priming), and (4) completion of word stems, half of which could form words from the study list, with the instruction to use the stems as cues for recall of list words (memory). The behavioral data indicated an agerelated deficit in cued recall that was reduced in priming. Both age groups showed a similar decrease of blood flow in right posterior cortex during priming relative to baseline. During cued recall, bilateral increases of blood flow were observed in prefrontal cortex and anterior cingulate gyrus for both age groups. The young adults showed selective increases of activity in left cerebellum and Wernicke's area, whereas the older adults showed a selective bilateral activation in the perirhinal region of the medial-temporal cortex during cued recall. The results suggest a simiiar biological basis of priming in both age groups: a decrease in the neural activity required to process a particular stimulus during a subsequent encounter compared with a previous one. In addition, the importance of prefrontal regions for conscious retrieval was substantiated and extended to late adulthood. Finally, the agedifferential activations observed during cued recall were discussed relative to prominent concepts in the current literature on cognitive aging (e.g., speed of processing, self-initiated operations, cross-modal recoding).
Collapse
Affiliation(s)
- L Bäckman
- Stockholm Gerontology Research Center, Goteborg University, and Karolinska Institute
| | | | | | | | | | | | | |
Collapse
|
37
|
Abstract
Abstract Patients with parietal volume loss showed electrophysiological and behavioral signs of abnormally narrow regions of enhancement of sensory stimulation at an attended location. On a test of focused spatial attention, when compared to normal control subjects and patients without parietal abnormality, patients with abnormalities of parietal cortex demonstrated (1) faster button press RTs to targets, (2) earlier P3b event-related potential (ERP) latencies to targets, and (3) larger than normal P1 ERP attention effects (i.e., greater than normal enhancement of sensory responses at an attended location). These data are evidence for visual attention distributed as a spotlight at the attentional focus with little surrounding processing enhancement. This dysfunctional attentional map facilitates simple responses within the attentional beam quite well, but could hinder responses outside the beam. Severely gated sensory responses outside the immediate attentional focus are likely to result in severely delayed responses to information in those locations. This would be consistent with the response delays seen in patients with parietal damage following an incorrect spatial cue (extinction-like pattern), and also with clinical observations of inattention in such patients. The patterns of sensory enhancement seen in these data suggest a mechanism that may underlie the impairments in spatial attention that follow damage to parietal cortex, and help to specify the role of parietal cortex in spatial attention.
Collapse
|
38
|
Schmahmann JD. Dysmetria of thought: clinical consequences of cerebellar dysfunction on cognition and affect. Trends Cogn Sci 2013; 2:362-71. [PMID: 21227233 DOI: 10.1016/s1364-6613(98)01218-2] [Citation(s) in RCA: 184] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Cognitive and emotional changes might be prominent or even principal manifestations of cerebellar lesions. This realization supports evidence suggesting that the cerebellum is an important part of a set of distributed neural circuits that subserve higher-order processing. Early anecdotal clinical accounts described aberrant mental or intellectual functions in the setting of cerebellar atrophy. Later systematic analyses showed that the cerebellum is able to influence autonomic, vasomotor, and emotional behaviors, and further studies revealed neuropsychological deficits in patients with degenerative diseases. Current descriptions of behavioral changes in adults and children with acquired cerebellar lesions bring the debate about the cerebellar role in neural function within the realm of clinically relevant cognitive neuroscience. The activation of focal cerebellar regions by cognitive tasks on functional neuroimaging studies, and morphologic abnormalities of cerebellum in psychiatric diseases such as autism and schizophrenia further support this view. Anatomical substrates have been elucidated that could support a cerebellar role in cognition and emotion. Our concept of `dysmetria of thought' draws an analogy with the motor system to describe and explain the impairments of higher-order behavior that result when the distributed neural circuits subserving cognitive operations are deprived of cerebellar modulation.
Collapse
Affiliation(s)
- J D Schmahmann
- Department of Neurology, Massachusetts General Hospital, Boston, MA 02114, USA
| |
Collapse
|
39
|
Central Processing of Lateral Line Information. SPRINGER HANDBOOK OF AUDITORY RESEARCH 2013. [DOI: 10.1007/2506_2013_16] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
40
|
Alzghoul L, Bortolato M, Delis F, Thanos PK, Darling RD, Godar SC, Zhang J, Grant S, Wang GJ, Simpson KL, Chen K, Volkow ND, Lin RCS, Shih JC. Altered cerebellar organization and function in monoamine oxidase A hypomorphic mice. Neuropharmacology 2012; 63:1208-17. [PMID: 22971542 PMCID: PMC3442946 DOI: 10.1016/j.neuropharm.2012.08.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2012] [Revised: 07/27/2012] [Accepted: 08/08/2012] [Indexed: 11/26/2022]
Abstract
Monoamine oxidase A (MAO-A) is the key enzyme for the degradation of brain serotonin (5-hydroxytryptamine, 5-HT), norepinephrine (NE) and dopamine (DA). We recently generated and characterized a novel line of MAO-A hypormorphic mice (MAO-A(Neo)), featuring elevated monoamine levels, social deficits and perseverative behaviors as well as morphological changes in the basolateral amygdala and orbitofrontal cortex. Here we showed that MAO-A(Neo) mice displayed deficits in motor control, manifested as subtle disturbances in gait, motor coordination, and balance. Furthermore, magnetic resonance imaging of the cerebellum revealed morphological changes and a moderate reduction in the cerebellar size of MAO-A(Neo) mice compared to wild type (WT) mice. Histological and immunohistochemical analyses using calbindin-D-28k (CB) expression of Purkinje cells revealed abnormal cerebellar foliation with vermal hypoplasia and decreased in Purkinje cell count and their dendritic density in MAO-A(Neo) mice compared to WT. Our current findings suggest that congenitally low MAO-A activity leads to abnormal development of the cerebellum.
Collapse
Affiliation(s)
- Loai Alzghoul
- Program in Neuroscience, University of Mississippi Medical Center, Jackson, MS, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Drews E, Otte DM, Zimmer A. Involvement of the primate specific gene G72 in schizophrenia: From genetic studies to pathomechanisms. Neurosci Biobehav Rev 2012; 37:2410-7. [PMID: 23092656 DOI: 10.1016/j.neubiorev.2012.10.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Revised: 09/03/2012] [Accepted: 10/15/2012] [Indexed: 12/28/2022]
Abstract
Schizophrenia is a human mental disorder that affects an individual's thoughts, perception, affect and behavior, which is caused by a complex interaction of genetic and environmental factors. Genetic studies have implicated the evolutionary novel, anthropoid primate-specific gene locus G72/G30 in the etiology of schizophrenia and other psychiatric disorders. This gene encodes the protein LG72, which has been discussed as a modulator of the peroxisomal enzyme d-amino-acid-oxidase (DAO), or, alternatively as a mitochondrial protein. Recently, G72 transgenic (G72Tg) mice were generated that express the protein throughout the brain. These mice show several behavioral deficits that are related to schizophrenia. Further, G72Tg mice have a reduced activity of mitochondrial complex I, with a concomitantly increased production of reactive oxygen species, as well as deficits in short-term plasticity. Results from these studies demonstrate that expression of the human G72/G30 gene locus in mice produces behavioral phenotypes that are relevant to schizophrenia. They implicate LG72-induced mitochondrial and synaptic defects as a possible pathomechanism of this disease.
Collapse
Affiliation(s)
- Eva Drews
- Institute of Molecular Psychiatry, University of Bonn, Germany.
| | | | | |
Collapse
|
42
|
Forsyth JK, Bolbecker AR, Mehta CS, Klaunig MJ, Steinmetz JE, O'Donnell BF, Hetrick WP. Cerebellar-dependent eyeblink conditioning deficits in schizophrenia spectrum disorders. Schizophr Bull 2012; 38:751-9. [PMID: 21148238 PMCID: PMC3406528 DOI: 10.1093/schbul/sbq148] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Accumulating evidence suggests that abnormalities in neural circuitry and timing associated with the cerebellum may play a role in the pathophysiology of schizophrenia. Schizotypal personality disorder (SPD) may be genetically linked to schizophrenia, but individuals with SPD are freer from potential research confounds and may therefore offer insight into psychophysiological correlates of schizophrenia. The present study employed a delay eyeblink conditioning (EBC) procedure to examine cerebellar-dependent learning in schizophrenia, SPD, and healthy control subjects (n = 18 per group) who were matched for age and gender. The conditioned stimulus was a 400-ms tone that coterminated with a 50 ms unconditioned stimulus air puff. Cognitive performance on the Picture Completion, Digit Symbol Coding, Similarities, and Digit Span subscales of the Wechsler Adult Intelligence Scale--Third Edition was also investigated. The schizophrenia and SPD groups demonstrated robust EBC impairment relative to the control subjects; they had significantly fewer conditioned responses (CRs), as well as smaller CR amplitudes. Schizophrenia subjects showed cognitive impairment across subscales compared with SPD and control subjects; SPD subjects showed intermediate performance to schizophrenia and control subjects and performed significantly worse than controls on Picture Completion. Impaired EBC was significantly related to decreased processing speed in schizophrenia spectrum subjects. These findings support the role of altered cortico-cerebellar-thalamic-cortical circuitry in the pathophysiology of schizophrenia spectrum disorders.
Collapse
Affiliation(s)
- Jennifer K. Forsyth
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN 47405,Larue D. Carter Memorial Hospital, Indianapolis, IN
| | - Amanda R. Bolbecker
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN 47405,Larue D. Carter Memorial Hospital, Indianapolis, IN
| | - Crystal S. Mehta
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN 47405,Larue D. Carter Memorial Hospital, Indianapolis, IN
| | - Mallory J. Klaunig
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN 47405,Larue D. Carter Memorial Hospital, Indianapolis, IN
| | | | - Brian F. O'Donnell
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN 47405,Larue D. Carter Memorial Hospital, Indianapolis, IN,Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN
| | - William P. Hetrick
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN 47405,Larue D. Carter Memorial Hospital, Indianapolis, IN,Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN,To whom correspondence should be addressed; tel: 812-855-2620, fax: 812-855-4544, e-mail:
| |
Collapse
|
43
|
Stargatt R, Anderson V, Rosenfeld JV. Neuropsychological Outcomes of Children Treated for Posterior Fossa Tumours:A Review. BRAIN IMPAIR 2012. [DOI: 10.1375/brim.3.2.92] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AbstractThe posterior fossa region of the brain is a frequent site for tumour development in children, with over half of all childhood tumours occurring at this site. The principal brain structure implicated at this site is the cerebellum. Children treated for posterior fossa tumours can have a wide range of neurological and psychosocial problems. This paper describes the literature to date that addresses the neuropsychological impact of tumour and treatment in children with posterior fossa tumours. This paper reviews the literature on the causes of morbidity in this group. It discusses the recent research on the role of the cerebellum in outcomes and the studies that identify variables that interact with radiation effects.
Collapse
|
44
|
Biological and clinical framework for posttraumatic stress disorder. HANDBOOK OF CLINICAL NEUROLOGY 2012; 106:291-342. [DOI: 10.1016/b978-0-444-52002-9.00018-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
45
|
Petacchi A, Kaernbach C, Ratnam R, Bower JM. Increased activation of the human cerebellum during pitch discrimination: A positron emission tomography (PET) study. Hear Res 2011; 282:35-48. [DOI: 10.1016/j.heares.2011.09.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2011] [Revised: 09/21/2011] [Accepted: 09/29/2011] [Indexed: 11/28/2022]
|
46
|
Quintero-Gallego E, Gómez C, Morales M, Márquez J. Spatial orientation deficit in children due to cerebellum astrocytoma pediatric tumor obtained by means of the Attentional Network Test. Neurosci Lett 2011; 504:232-6. [DOI: 10.1016/j.neulet.2011.09.034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Revised: 08/31/2011] [Accepted: 09/15/2011] [Indexed: 10/17/2022]
|
47
|
Forn C, Rocca MA, Valsasina P, Boscá I, Casanova B, Sanjuan A, Ávila C, Filippi M. Functional magnetic resonance imaging correlates of cognitive performance in patients with a clinically isolated syndrome suggestive of multiple sclerosis at presentation: an activation and connectivity study. Mult Scler 2011; 18:153-63. [DOI: 10.1177/1352458511417744] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Background/Objective: To assess whether abnormalities on functional magnetic resonance imaging (fMRI) are related to cognitive function in patients at presentation with clinically isolated syndrome (CIS) suggestive of multiple sclerosis. Methods: Eighteen patients with CIS and 15 healthy controls (HCs) performed an adapted fMRI version of the Paced Auditory Serial Addition Test (PASAT). According to their PASAT performance, CIS patients were divided into two groups: 10 with a low PASAT performance (<1 SD from the mean value of HCs) were considered ‘cognitive impairment’ (CI); eight patients were defined as ‘cognitively preserved’ (CP). Between-group differences in the patterns of brain activations and effective connectivity were assessed. Results: During PASAT, compared to HCs, CIS patients showed increased activations of the bilateral inferior parietal lobe (IPL), bilateral precuneus, bilateral middle frontal gyrus (MFG), left anterior cingulate cortex (ACC), left claustrum, right thalamus and right caudate nucleus. When CIS patients were analyzed, the CI group had a more significant activation of the bilateral IPL than HCs and CP patients. Compared to CP patients, they also had more significant recruitment of the right superior parietal lobe, right cerebellum, left MFG and left ACC. The analysis of effective connectivity showed stronger connections between several regions of the right hemisphere involved in working memory function in CI patients versus CP and HC. Conclusions: During performance of the PASAT, CIS patients show abnormalities in the patterns of cortical recruitment and connectivity related to the level of their cognitive impairment.
Collapse
Affiliation(s)
- C Forn
- Division of Neuroscience, Scientific Institute and “Vita-Salute” University, Hospital San Raffaele, Milan, Italy
- Universitat Jaume I, Castelló de la Plana, Spain
| | - MA Rocca
- Division of Neuroscience, Scientific Institute and “Vita-Salute” University, Hospital San Raffaele, Milan, Italy
| | - P Valsasina
- Division of Neuroscience, Scientific Institute and “Vita-Salute” University, Hospital San Raffaele, Milan, Italy
| | - I Boscá
- Servicio de Neuroinmunología, Hospital La Fe, Valencia, Spain
| | - B Casanova
- Servicio de Neuroinmunología, Hospital La Fe, Valencia, Spain
| | - A Sanjuan
- Universitat Jaume I, Castelló de la Plana, Spain
| | - C Ávila
- Universitat Jaume I, Castelló de la Plana, Spain
| | - M Filippi
- Division of Neuroscience, Scientific Institute and “Vita-Salute” University, Hospital San Raffaele, Milan, Italy
| |
Collapse
|
48
|
Law N, Bouffet E, Laughlin S, Laperriere N, Brière ME, Strother D, McConnell D, Hukin J, Fryer C, Rockel C, Dickson J, Mabbott D. Cerebello–thalamo–cerebral connections in pediatric brain tumor patients: Impact on working memory. Neuroimage 2011; 56:2238-48. [DOI: 10.1016/j.neuroimage.2011.03.065] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2011] [Revised: 03/10/2011] [Accepted: 03/24/2011] [Indexed: 01/22/2023] Open
|
49
|
Limitations of PET and lesion studies in defining the role of the human cerebellum in motor learning. Behav Brain Sci 2011. [DOI: 10.1017/s0140525x00081899] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
50
|
|