Abstract:
:Low frequency theta band oscillations (4-8 Hz) are thought to provide a timing mechanism for hippocampal place cell firing and to mediate the formation of spatial memory. In rodents, hippocampal theta has been shown to play an important role in encoding a new environment during spatial navigation, but a similar functional role of hippocampal theta in humans has not been firmly established. To investigate this question, we recorded healthy participants' brain responses with a 160-channel whole-head MEG system as they performed two training sets of a virtual Morris water maze task. Environment layouts (except for platform locations) of the two sets were kept constant to measure theta activity during spatial learning in new and familiar environments. In line with previous findings, left hippocampal/parahippocampal theta showed more activation navigating to a hidden platform relative to random swimming. Consistent with our hypothesis, right hippocampal/parahippocampal theta was stronger during the first training set compared to the second one. Notably, theta in this region during the first training set correlated with spatial navigation performance across individuals in both training sets. These results strongly argue for the functional importance of right hippocampal theta in initial encoding of configural properties of an environment during spatial navigation. Our findings provide important evidence that right hippocampal/parahippocampal theta activity is associated with environmental encoding in the human brain. Hum Brain Mapp 38:1347-1361, 2017. © 2016 Wiley Periodicals, Inc.
journal_name
Hum Brain Mappjournal_title
Human brain mappingauthors
Pu Y,Cornwell BR,Cheyne D,Johnson BWdoi
10.1002/hbm.23458subject
Has Abstractpub_date
2017-03-01 00:00:00pages
1347-1361issue
3eissn
1065-9471issn
1097-0193journal_volume
38pub_type
杂志文章abstract::Classical delay eyeblink conditioning is likely the most commonly used paradigm to study cerebellar learning. As yet, few studies have focused on extinction and savings of conditioned eyeblink responses (CRs). Saving effects, which are reflected in a reacquisition after extinction that is faster than the initial acqui...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.23641
更新日期:2017-08-01 00:00:00
abstract:OBJECTIVES:To investigate the function-structure relationship of white matter within different stages of Huntington's disease (HD) using diffusion tensor imaging (DTI). EXPERIMENTAL DESIGN:From the TRACK-HD study, an early stage HD group and a premanifest gene carrier group (PMGC) were age-matched to two healthy contr...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.21205
更新日期:2012-01-01 00:00:00
abstract::Posttraumatic stress disorder (PTSD) is a prevalent, debilitating, and difficult to treat psychiatric disorder. Very little is known of how PTSD affects neuroplasticity in the developing adolescent brain. Whereas multiple lines of research implicate amygdala-centered network dysfunction in the pathophysiology of adult...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.23093
更新日期:2016-03-01 00:00:00
abstract::The spatial organization of nonlinear interactions between different brain regions during the first NREM sleep stage is investigated. This is achieved via consideration of four bipolar electrode derivations, Fp1F3, Fp2F4, O1P3, O2P4, which are used to compare anterior and posterior interhemispheric interactions and le...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.20052
更新日期:2004-10-01 00:00:00
abstract::The influential competition between verbal and implicit systems (COVIS) model proposes that category learning is driven by two competing neural systems-an explicit, verbal, system, and a procedural-based, implicit, system. In the current fMRI study, participants learned either a conjunctive, rule-based (RB), category ...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.23259
更新日期:2016-10-01 00:00:00
abstract::Own body perception, and differentiating and comparing one's body to another person's body, are common cognitive functions that have relevance for self-identity and social interactions. In several psychiatric conditions, including anorexia nervosa, body dysmorphic disorder, gender dysphoria, and autism spectrum disord...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.24388
更新日期:2019-02-01 00:00:00
abstract::Chemosensory-based communication is a vital signaling tool in most species, and evidence has recently emerged in support of the notion that humans also use social chemosignals (so-called pheromones) to communicate. An ongoing controversy does exist, however, concerning the receptor organ through which these chemicals ...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.21035
更新日期:2011-03-01 00:00:00
abstract::Affective temperaments have been described since the early 20th century and may play a central role in psychiatric illnesses, such as bipolar disorder (BD). However, the neuronal basis of temperament is still unclear. We investigated the relationship of temperament with neuronal variability in the resting state signal...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.24453
更新日期:2019-03-01 00:00:00
abstract::When ambiguous visual stimuli have multiple interpretations, human perception can alternate between them, producing perceptual multistability. There is a large variation between individuals in how long stable percepts endure, on average, between switches, but the underlying neural basis of this individual difference i...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.24533
更新日期:2019-06-01 00:00:00
abstract::Medial temporal lobe (MTL) subregions play integral roles in memory function and are differentially affected in various neurological and psychiatric disorders. The ability to structurally and functionally characterize these subregions may be important to understanding MTL physiology and diagnosing diseases involving t...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.23887
更新日期:2018-02-01 00:00:00
abstract::Benign epilepsy with centrotemporal spikes (BECTS) is characterized by abnormal (static) functional interactions among cortical and subcortical regions, regardless of the active or chronic epileptic state. However, human brain connectivity is dynamic and associated with ongoing rhythmic activity. The dynamic functiona...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.23910
更新日期:2018-03-01 00:00:00
abstract::During complex tasks, patterns of functional connectivity differ from those in the resting state. However, what accounts for such differences remains unclear. Brain activity during a task reflects an unknown mixture of spontaneous and task-evoked activities. The difference in functional connectivity between a task sta...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.24335
更新日期:2018-12-01 00:00:00
abstract::Bimanual movements involve the interactions between both primary motor cortices. These interactions are assumed to involve phase-locked oscillatory brain activity referred to as inter-hemispheric functional coupling. So far, inter-hemispheric functional coupling has been investigated as a function of motor performance...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.23663
更新日期:2017-09-01 00:00:00
abstract::Free water elimination (FWE) in brain diffusion MRI has been shown to improve tissue specificity in human white matter characterization both in health and in disease. Relative to the classical diffusion tensor imaging (DTI) model, FWE is also expected to increase sensitivity to microstructural changes in longitudinal ...
journal_title:Human brain mapping
pub_type: 杂志文章,多中心研究
doi:10.1002/hbm.23350
更新日期:2017-01-01 00:00:00
abstract::Functional neuroimaging results need to replicate to inform sound models of human social cognition and its neural correlates. Introspection, the capacity to reflect on one's thoughts and feelings, is one process required for normative social cognition and emotional functioning. Engaging in introspection draws on a net...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.24836
更新日期:2020-02-15 00:00:00
abstract::The central extended amygdala (EAc)-including the bed nucleus of the stria terminalis (BST) and central nucleus of the amygdala (Ce)-plays a critical role in triggering fear and anxiety and is implicated in the development of a range of debilitating neuropsychiatric disorders. Although it is widely believed that these...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.23917
更新日期:2018-03-01 00:00:00
abstract::Low socioeconomic status (SES) is associated with a higher probability of multiple exposures (e.g., neighborhood violence, poor nutrition, housing instability, air pollution, and insensitive caregiving) known to affect structural development of subcortical brain regions that subserve threat and reward processing, howe...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.24796
更新日期:2020-01-01 00:00:00
abstract::The results of most neuroimaging studies are reported in volumetric (e.g., MNI152) or surface (e.g., fsaverage) coordinate systems. Accurate mappings between volumetric and surface coordinate systems can facilitate many applications, such as projecting fMRI group analyses from MNI152/Colin27 to fsaverage for visualiza...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.24213
更新日期:2018-09-01 00:00:00
abstract::Constrained spherical deconvolution (CSD) is a new technique that, based on high-angular resolution diffusion imaging (HARDI) MR data, estimates the orientation of multiple intravoxel fiber populations within regions of complex white matter architecture, thereby overcoming the limitations of the widely used diffusion ...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.21032
更新日期:2011-03-01 00:00:00
abstract::Listening to music can induce us to tune in to its beat. Previous neuroimaging studies have shown that the motor system becomes involved in perceptual rhythm and timing tasks in general, as well as during preference-related responses to music. However, the role of preferred rhythm and, in particular, of preferred beat...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.20844
更新日期:2010-01-01 00:00:00
abstract::Standardized psychometric tests are sophisticated, well-developed, and consequential instruments; test outcomes are taken as facts about people that impact their lives in important ways. As part of an initial demonstration that human brain mapping techniques can add converging neural-level evidence to understanding st...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.23761
更新日期:2017-11-01 00:00:00
abstract::Constrained spherical deconvolution (CSD) of diffusion-weighted MRI (DW-MRI) is a popular analysis method that extracts the full white matter (WM) fiber orientation density function (fODF) in the living human brain, noninvasively. It assumes that the DW-MRI signal on the sphere can be represented as the spherical conv...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.25241
更新日期:2020-11-10 00:00:00
abstract::Central brain network connections greatly contribute to overall network efficiency. Here we examined whether small vessel disease (SVD) related white matter alterations in central brain network connections have a greater impact on executive functioning than alterations in non-central brain network connections. Brain n...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.23186
更新日期:2016-07-01 00:00:00
abstract::Fluid intelligence (gf) refers to abstract reasoning and problem solving abilities. It is considered a human higher cognitive factor central to general intelligence (g). The regions of the cortex supporting gf have been revealed by recent bioimaging studies and valuable hypothesis on the neural correlates of individua...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.20519
更新日期:2009-02-01 00:00:00
abstract::Children born very preterm (VPT; <32 weeks' gestational age) are at high risk for emotional regulation and social communication impairments. However, the underlying neurobiological correlates of these difficulties remain poorly understood. Using a multimodal approach, including both magnetoencephalographic and structu...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.24604
更新日期:2019-08-01 00:00:00
abstract::Standard procedures to achieve quality assessment (QA) of functional magnetic resonance imaging (fMRI) data are of great importance. A standardized and fully automated procedure for QA is presented that allows for classification of data quality and the detection of artifacts by inspecting temporal variations. The appl...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.20096
更新日期:2005-06-01 00:00:00
abstract::Working memory (WM) is defined as the ability to maintain a representation online to guide goal-directed behavior. Its capacity in early childhood predicts academic achievements in late childhood and its deficits are found in various neurodevelopmental disorders. We employed resting-state fMRI (rs-fMRI) of 468 partici...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.25143
更新日期:2020-11-01 00:00:00
abstract::Socially appropriate behavior requires the concurrent inhibition of actions that are inappropriate in the context. This self-regulatory function requires an interaction of inhibitory and emotional processes that recruits brain regions beyond those engaged by either processes alone. In this study, we isolated brain act...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.20706
更新日期:2009-09-01 00:00:00
abstract::Synchrony measurements of spontaneous low-frequency blood oxygenation level-dependent (BOLD) fluctuations are increasingly being used to investigate spatial regions of functional connectivity. Although information regarding BOLD-BOLD synchrony between different regions is frequently reported, the relationship between ...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:10.1002/hbm.21228
更新日期:2012-03-01 00:00:00
abstract::Active listening has been reported to elicit a different sensory response from passive listening and is generally observed as an increase in the magnitude of activation. Sensory activation differences may therefore be masked by the effect of attention. The present study measured activation induced by static and modula...
journal_title:Human brain mapping
pub_type: 杂志文章
doi:
更新日期:2000-07-01 00:00:00