Abstract:
:Cognition that is not based on perception can lead to at least two different outcomes. In some situations, cognition that is independent of perception can allow actions to be selected other than those prescribed by immediate perceptual input. In others, cognition can be independent of perception and unrelated to the current behavioral goal allowing thoughts to develop that are largely independent of the actions involved in an external task. The default mode network (DMN) has been implicated in both of these kinds of perceptually decoupled thought. The current experiment used functional magnetic resonance imaging to explore whether a common region of this network was co-activated by both of these states. Both the medial pre-frontal cortex and the posterior cingulate - two major hubs of the DMN - showed greater activity when (i) actions that did not depend upon immediate perceptual input were faster and (ii) when actions based on perceptual input were slower. Together these data suggest that the DMN is important in cognition that is independent from perceptual input regardless of whether such thoughts result in action, or, instead compete with the behavioral goals of the moment.
journal_name
Neuroimagejournal_title
NeuroImageauthors
Smallwood J,Tipper C,Brown K,Baird B,Engen H,Michaels JR,Grafton S,Schooler JWdoi
10.1016/j.neuroimage.2012.12.012subject
Has Abstractpub_date
2013-04-01 00:00:00pages
120-5eissn
1053-8119issn
1095-9572pii
S1053-8119(12)01189-5journal_volume
69pub_type
杂志文章相关文献
NEUROIMAGE文献大全abstract::We describe a mathematical model linking changes in cerebral blood flow, blood volume and the blood oxygenation state in response to stimulation. The model has three compartments to take into account the fact that the cerebral blood flow and volume as measured concurrently using laser Doppler flowmetry and optical ima...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2005.06.042
更新日期:2005-12-01 00:00:00
abstract::Reliable quantification of white matter hyperintensities of presumed vascular origin (WMHs) is increasingly needed, given the presence of these MRI findings in patients with several neurological and vascular disorders, as well as in elderly healthy subjects. We present BIANCA (Brain Intensity AbNormality Classificatio...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2016.07.018
更新日期:2016-11-01 00:00:00
abstract::Repetition has been shown to activate the so-called 'dorsal stream', a network of temporo-parieto-frontal areas subserving the mapping of acoustic speech input onto articulatory-motor representations. Among these areas, a region in the posterior Sylvian fissure at the temporo-parietal boundary (also called 'area Spt')...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2011.07.025
更新日期:2012-01-02 00:00:00
abstract::General cognitive ability (GCA) has substantial explanatory power for behavioral and health outcomes, but its cortical substrate is still not fully established. GCA is highly polygenic and research to date strongly suggests that its cortical substrate is highly polyregional. We show in map-based and region-of-interest...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2016.01.049
更新日期:2016-04-01 00:00:00
abstract::Motor tasks involve neural activity in a spatially distributed network. It is assumed that coherent activity between these brain structures reflects functional connectivity. The aim of the present study was to investigate brain areas associated with a unimanual auditorily paced finger-tapping task and to characterize ...
journal_title:NeuroImage
pub_type: 临床试验,杂志文章
doi:10.1016/j.neuroimage.2004.10.009
更新日期:2005-02-01 00:00:00
abstract::Neuropsychological and neuroimaging data have shown a functional lateralization of the medial temporal lobes for verbal and non-verbal memory material respectively. We hypothesized that this lateralization is related to language lateralization. Using fMRI we conducted three memory tasks with different memory material ...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2007.05.022
更新日期:2007-08-15 00:00:00
abstract::Predicting Alzheimer's disease (AD) in individuals with some symptoms of cognitive decline may have great influence on treatment choice and disease progression. Structural magnetic resonance imaging (MRI) has the potential of revealing early signs of neurodegeneration in the human brain and may thus aid in predicting ...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2012.09.058
更新日期:2013-01-15 00:00:00
abstract::Event-related potentials (ERPs) were used to trace changes in brain activity related to progress in second language learning. Twelve English-speaking exchange students learning German in Switzerland were recruited. ERPs to visually presented single words from the subjects' native language (English), second language (G...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2006.07.008
更新日期:2006-11-01 00:00:00
abstract::We introduce MACACC-Mapping Anatomical Correlations Across Cerebral Cortex-to study correlated changes within and across different cortical networks. The principal topic of investigation is whether the thickness of one area of the cortex changes in a statistically correlated fashion with changes in thickness of other ...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2006.01.042
更新日期:2006-07-01 00:00:00
abstract::Episodic retrieval is supported by multiple forms of cognitive control that depend on prefrontal cortex. However, within prefrontal cortex, the regional specificity for different control processes is still largely underspecified. Here we used fMRI to investigate the processes involved in part-list cueing, a phenomenon...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2009.12.114
更新日期:2010-04-01 00:00:00
abstract::We often mistake an unknown person for a familiar person because of the similarities in facial features. This phenomenon, known as false memory, has been investigated mainly using words, pictures, and shapes. Previous neuroimaging studies on false memory have shown that both true and false memories trigger a similar a...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2012.04.044
更新日期:2012-08-01 00:00:00
abstract::Semantic priming occurs when a subject is faster in recognising a target word when it is preceded by a related word compared to an unrelated word. The effect is attributed to automatic or controlled processing mechanisms elicited by short or long interstimulus intervals (ISIs) between primes and targets. We employed e...
journal_title:NeuroImage
pub_type: 临床试验,杂志文章
doi:10.1016/s1053-8119(03)00279-9
更新日期:2003-09-01 00:00:00
abstract:INTRODUCTION:The brain representation of visceral stimulation bears important similarities to that of somatic stimulation. However, the role of the primary (S1) and secondary (S2) somatosensory cortices in mediating gastric sensation is uncertain. MATERIALS AND METHODS:Eighteen healthy, right-handed volunteers (age 32...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2006.07.033
更新日期:2007-01-15 00:00:00
abstract::Sleep is an evolutionarily conserved process required for human health and functioning. Insufficient sleep causes impairments across cognitive domains, and sleep deprivation can have rapid antidepressive effects in mood disorders. However, the neurobiological effects of waking and sleep are not well understood. Recent...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2017.05.027
更新日期:2017-08-01 00:00:00
abstract::Current neurobiological models assign a central role to predictive processes calibrated to environmental statistics. Neuroimaging studies examining the encoding of stimulus uncertainty have relied almost exclusively on manipulations in which stimuli were presented in a single sensory modality, and further assumed that...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2018.02.019
更新日期:2018-06-01 00:00:00
abstract::Using functional Magnetic Resonance Imaging (fMRI) and long connected speech stimuli, we addressed the question of neuronal networks involved in prosodic integration by comparing (1) differences in brain activity when hearing connected speech stimuli with high and low degrees of prosodic expression; (2) differences in...
journal_title:NeuroImage
pub_type: 临床试验,杂志文章
doi:10.1016/j.neuroimage.2004.11.003
更新日期:2005-02-15 00:00:00
abstract::Neighboring contextual elements can dramatically affect the manner in which the brain processes the perceptual characteristics of an object. Indeed, many well-known visual illusions rely on misleading contextual cues to create misperceptions of size, length or orientation (e.g., in the Ebbinghaus, Muller-Lyer or rod-a...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2008.06.016
更新日期:2008-10-01 00:00:00
abstract::Attention-related amplification of neural representations of external stimuli has been well documented in the visual domain, however, research concerning the oscillatory dynamics of such directed attention is relatively sparse in humans. Specifically, it is unknown which spectrally-specific neural responses are mainly...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2020.116927
更新日期:2020-08-15 00:00:00
abstract::In the present study, we applied high-resolution functional magnetic resonance imaging (fMRI) of the human auditory cortex (AC) and adjacent areas to compare activations during spatial discrimination and spatial n-back memory tasks that were varied parametrically in difficulty. We found that activations in the anterio...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2011.10.069
更新日期:2012-02-15 00:00:00
abstract::Under weak and reasonable assumptions, mainly that data are exchangeable under the null hypothesis, permutation tests can provide exact control of false positives and allow the use of various non-standard statistics. There are, however, various common examples in which global exchangeability can be violated, including...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2015.05.092
更新日期:2015-12-01 00:00:00
abstract::MRI at high magnetic field strength potentially allows for an increase in resolution and image contrast. The gains are particularly dramatic for T(2)(*)-weighted imaging, which is sensitive to susceptibility effects caused by a variety of sources, including deoxyhemoglobin, iron concentration, and tissue microstructur...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2006.05.053
更新日期:2006-09-01 00:00:00
abstract::Synchronization plays a fundamental role in healthy cognitive and motor function. However, how synchronization depends on the interplay between local dynamics, coupling and topology and how prone to synchronization a network is, given its topological organization, are still poorly understood issues. To investigate the...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2019.04.029
更新日期:2019-08-01 00:00:00
abstract::In this fMRI study, we investigated the convergence of underlying neural networks in thinking about a scenario involving one's own intentional action and its consequences and setting up and holding in mind an intention to act. A factorial design was employed comprising two factors: i. Causality (intentional or physica...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2005.05.001
更新日期:2005-12-01 00:00:00
abstract::A number of previous studies have interpreted differences in brain activation between arithmetic operation types (e.g. addition and multiplication) as evidence in favor of distinct cortical representations, processes or neural systems. It is still not clear how differences in general task complexity contribute to thes...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2014.01.061
更新日期:2014-05-15 00:00:00
abstract::During reinforcement learning, phasic modulations of activity in midbrain dopamine neurons are conveyed to the dorsal anterior cingulate cortex (dACC) and basal ganglia (BG) and serve to guide adaptive responding. While the animal literature supports a role for the dACC in integrating reward history over time, most hu...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2008.05.032
更新日期:2008-08-15 00:00:00
abstract::Measures of resting-state functional connectivity allow the description of neuronal networks in humans and provide a window on brain function in normal and pathological conditions. Characterizing neuronal networks in animals is complementary to studies in humans to understand how evolution has modelled network archite...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2020.117589
更新日期:2021-02-01 00:00:00
abstract::Large amounts of multimodal neuroimaging data are acquired every year worldwide. In order to extract high-dimensional information for computational neuroscience applications standardized data fusion and efficient reduction into integrative data structures are required. Such self-consistent multimodal data sets can be ...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2015.03.055
更新日期:2015-08-15 00:00:00
abstract::In contrast to the limited use of functional magnetic resonance imaging (fMRI) in clinical diagnostics, it is currently a mainstay of neuroimaging in clinical and basic brain research. However, its non-invasive use in combination with its high temporal and spatial resolution would make fMRI a perfect diagnostic tool. ...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2012.02.082
更新日期:2012-05-15 00:00:00
abstract::The primary goal of this study was to investigate associations between regional gray matter (GM) atrophy and neuropsychological function in multiple sclerosis (MS), while accounting for the influence of central brain atrophy (i.e. third ventricle enlargement). Using a cross-sectional design, we studied 59 MS patients ...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2007.04.017
更新日期:2007-07-15 00:00:00
abstract::It is well established that the time to name target objects can be influenced by the presence of categorically related versus unrelated distractor items. A variety of paradigms have been developed to determine the level at which this semantic interference effect occurs in the speech production system. In this study, w...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2009.12.067
更新日期:2010-04-01 00:00:00