Abstract:
:Perceptual similarity is a cognitive judgment that represents the end-stage of a complex cascade of hierarchical processing throughout visual cortex. Previous studies have shown a correspondence between the similarity of coarse-scale fMRI activation patterns and the perceived similarity of visual stimuli, suggesting that visual objects that appear similar also share similar underlying patterns of neural activation. Here we explore the temporal relationship between the human brain's time-varying representation of visual patterns and behavioral judgments of perceptual similarity. The visual stimuli were abstract patterns constructed from identical perceptual units (oriented Gabor patches) so that each pattern had a unique global form or perceptual 'Gestalt'. The visual stimuli were decodable from evoked neural activation patterns measured with magnetoencephalography (MEG), however, stimuli differed in the similarity of their neural representation as estimated by differences in decodability. Early after stimulus onset (from 50ms), a model based on retinotopic organization predicted the representational similarity of the visual stimuli. Following the peak correlation between the retinotopic model and neural data at 80ms, the neural representations quickly evolved so that retinotopy no longer provided a sufficient account of the brain's time-varying representation of the stimuli. Overall the strongest predictor of the brain's representation was a model based on human judgments of perceptual similarity, which reached the limits of the maximum correlation with the neural data defined by the 'noise ceiling'. Our results show that large-scale brain activation patterns contain a neural signature for the perceptual Gestalt of composite visual features, and demonstrate a strong correspondence between perception and complex patterns of brain activity.
journal_name
Neuroimagejournal_title
NeuroImageauthors
Wardle SG,Kriegeskorte N,Grootswagers T,Khaligh-Razavi SM,Carlson TAdoi
10.1016/j.neuroimage.2016.02.019subject
Has Abstractpub_date
2016-05-15 00:00:00pages
59-70eissn
1053-8119issn
1095-9572pii
S1053-8119(16)00126-9journal_volume
132pub_type
杂志文章相关文献
NEUROIMAGE文献大全abstract::Simultaneous EEG-fMRI has opened up new avenues for improving the spatio-temporal resolution of functional brain studies. However, this method usually suffers from poor EEG quality, especially for evoked potentials (ERPs), due to specific artifacts. As such, the use of EEG-informed fMRI analysis in the context of cogn...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2014.05.075
更新日期:2014-10-15 00:00:00
abstract::The impulse to act for immediate reward often conflicts with more deliberate evaluations that support long-term benefit. The neural architecture that negotiates this conflict remains unclear. One account proposes a single neural circuit that evaluates both immediate and delayed outcomes, while another outlines separat...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2014.12.071
更新日期:2015-04-01 00:00:00
abstract::Application of fMRI to clinical neurology implies the selection of a simple task and control of the task performance. The capability to objectively monitor variables related to task execution is, therefore, important and could improve accuracy of clinical fMRI studies. We assessed the influence of different self-paced...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2007.07.045
更新日期:2007-11-15 00:00:00
abstract::Simultaneous recording of brain activity by different neurophysiological modalities can yield insights that reach beyond those obtained by each technique individually, even when compared to those from the post-hoc integration of results from each technique recorded sequentially. Success in the endeavour of real-time m...
journal_title:NeuroImage
pub_type: 杂志文章,评审
doi:10.1016/j.neuroimage.2007.11.039
更新日期:2008-04-01 00:00:00
abstract::The ability to prepare for an action improves the speed and accuracy of its performance. While many studies indicate that behavior performance continues to improve throughout childhood and adolescence, it remains unclear whether or how preparatory processes change with development. Here, we used a rapid event-related ...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2014.03.008
更新日期:2014-09-01 00:00:00
abstract::Theorists disagree over whether our language faculty is a single system or a dual one. Those supporting the latter position believe that English regular and irregular past tense verbs reflect this duality, with some proposing that each is processed by a rule mechanism and memorised lexicon respectively. Single system ...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2011.04.008
更新日期:2011-07-01 00:00:00
abstract::Fine-grained functional organization of cortex is not well-conserved across individuals. As a result, individual differences in cortical functional architecture are confounded by topographic idiosyncrasies-i.e., differences in functional-anatomical correspondence. In this study, we used hyperalignment to align informa...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2018.08.029
更新日期:2018-12-01 00:00:00
abstract::Diffusion tensor imaging (DTI) studies in adolescents with autism spectrum disorders (ASD) indicate aberrant neurodevelopment of frontal white matter (WM), potentially underlying abnormal social cognition and communication in ASD. Here, we further use tract-based spatial statistics (TBSS) to examine the developmental ...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2010.01.011
更新日期:2010-04-15 00:00:00
abstract::Reconstruction of white matter tracts based on diffusion tensor imaging (DTI) is currently widely used in clinical research. This reconstruction allows us to identify coordinates of specific white matter tracts and to investigate their anatomy. Fiber reconstruction, however, relies on manual identification of anatomic...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2008.04.241
更新日期:2008-08-15 00:00:00
abstract::Cancer and cancer treatment-related neurocognitive dysfunction (CRND) (e.g., impairments in key cognitive domains of attention, memory, processing speed, and executive function), commonly referred to as "chemobrain" or "chemo-fog", can negatively impact patients' psychosocial functioning and quality of life. CRND is a...
journal_title:NeuroImage
pub_type: 杂志文章,评审
doi:10.1016/j.neuroimage.2013.06.075
更新日期:2014-01-15 00:00:00
abstract::The impact of in-scanner motion on functional magnetic resonance imaging (fMRI) data has a notorious reputation in the neuroimaging community. State-of-the-art guidelines advise to scrub out excessively corrupted frames as assessed by a composite framewise displacement (FD) score, to regress out models of nuisance var...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2019.116433
更新日期:2020-04-01 00:00:00
abstract::Syntactically and semantically anomalous words encountered during sentence comprehension are known to elicit dissociable electrophysiological responses, which are thought to reflect distinct aspects of language processing. However, the sources of these responses have not been well characterized. We used beamforming an...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2014.11.016
更新日期:2015-01-15 00:00:00
abstract::Analyses of spontaneous hemodynamic fluctuations observed on functional magnetic resonance imaging (fMRI) have revealed the existence of temporal correlations in signal changes between widely separated brain regions during the resting state, termed "resting state functional connectivity." Recent studies have demonstra...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2010.12.075
更新日期:2011-05-01 00:00:00
abstract::We evaluate the impact of template choice on template-based segmentation of the hippocampus in epilepsy. Four dataset-specific strategies are quantitatively contrasted: the "closest to average" individual template, the average shape version of the closest to average template, a best appearance template and the best ap...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2009.09.062
更新日期:2010-02-01 00:00:00
abstract::Recently, a group of major international experts have completed a comprehensive effort to efficiently define a harmonized protocol for manual hippocampal segmentation that is optimized for Alzheimer's research (known as the EADC-ADNI Harmonized Protocol (the HarP)). This study compares the HarP with one of the widely ...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2018.06.077
更新日期:2018-11-01 00:00:00
abstract::We used the highly selective D2/D3 dopamine PET radioligand [F-18]fallypride to demonstrate that cognitive task induced dopamine release can be measured in the extrastriatal region of the thalamus, a region containing 10-fold fewer D2 dopamine receptors than the striatum. Human studies were acquired on 8 healthy volun...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2005.11.052
更新日期:2006-05-15 00:00:00
abstract::Acquisition of phonological processing skills, such as the ability to segment words into corresponding speech sounds, is critical to the development of efficient reading. Prior neuroimaging studies of phonological processing have often relied on auditory stimuli or print-mediated tasks that may be problematic for vari...
journal_title:NeuroImage
pub_type: 临床试验,杂志文章
doi:10.1016/j.neuroimage.2005.04.013
更新日期:2005-08-01 00:00:00
abstract::We take the feeling that our body belongs to us for granted. However, recent research has shown that it is possible to alter the subjective sensation of body ownership (BO) by manipulating multisensory bodily inputs. Several frontal and parietal regions are known to specifically process multisensory cues presented clo...
journal_title:NeuroImage
pub_type: 杂志文章,meta分析
doi:10.1016/j.neuroimage.2016.12.052
更新日期:2017-02-15 00:00:00
abstract::The cascade model of cognitive control, mostly relying on functional neuroimaging studies, stipulates that the lateral frontal cortex (LFC) is organized as a cascade of executive processes involving three levels of cognitive control, implemented in distinct LFC areas from the premotor to the anterior prefrontal region...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2013.09.031
更新日期:2014-01-01 00:00:00
abstract::Multi-echo T(2) relaxation decay data was acquired for 5 preadolescent males (age range 9-12 years). A signal to noise filter appropriate for multi-exponential T(2) analysis was then applied to remove voxels which did not accurately fit the modelled curve. The remaining voxels were designated "highly myelinated" if th...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2008.07.038
更新日期:2008-12-01 00:00:00
abstract::The aim of this study was to define the mean regional 6-[(18)F]fluoro-l-dopa (FDOPA) uptake rate constant (K(i)) values in the striatal and extrastriatal regions of the brain of normal subjects using magnetic resonance imaging (MRI)-aided spatial normalization of the FDOPA K(i) image and using automatic region of inte...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1006/nimg.2000.0584
更新日期:2000-06-01 00:00:00
abstract::Tractography uses diffusion tensor imaging data to trace white matter pathways in vivo within the brain. We have constructed group maps that represent three major white matter tracts-the anterior callosal fibers, optic radiations, and pyramidal tracts-in a group of 21 volunteers. For each individual tract the fast mar...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/s1053-8119(03)00190-3
更新日期:2003-08-01 00:00:00
abstract::This study attempted to use PET and 15O-H2O to measure changes in regional cerebral blood flow (rCBF) during sexual arousal evoked in 10 young heterosexual males while they watched a pornographic video clip, featuring heterosexual intercourse. This condition was compared with other mental setups evoked by noisy, natur...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1006/nimg.2001.0794
更新日期:2001-07-01 00:00:00
abstract::In this paper we present a novel wavelet-based Bayesian nonparametric regression model for the analysis of functional magnetic resonance imaging (fMRI) data. Our goal is to provide a joint analytical framework that allows to detect regions of the brain which exhibit neuronal activity in response to a stimulus and, sim...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2014.03.024
更新日期:2014-07-15 00:00:00
abstract::The present study examined intrahemispheric functional connectivity during rest and dichotic listening in 8 male and 9 female healthy young adults measured with magnetoencephalography (MEG). Generalized synchronization within the separate hemispheres was estimated by means of the synchronization likelihood that is sen...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2005.09.015
更新日期:2006-03-01 00:00:00
abstract::Our phenomenological experience of the stable world is maintained by continuous integration of visual self-motion with extra-retinal signals. However, due to conventional constraints of fMRI acquisition in humans, neural responses to visuo-vestibular integration have only been studied using artificial stimuli, in the ...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2018.02.006
更新日期:2018-05-15 00:00:00
abstract::The execution of movements that are guided by an increasingly complex target motion is known to draw on premotor cortices. Whole-brain functional magnetic resonance imaging was used to investigate whether, in the absence of any movement, attending to and predicting increasingly complex target motion also rely on premo...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1006/nimg.2002.1183
更新日期:2002-08-01 00:00:00
abstract::Keeping time is fundamental for our everyday existence. Various isochronous activities, such as locomotion, require us to use internal timekeeping. This phenomenon comes into play also in other human pursuits such as dance and music. When listening to music, we spontaneously perceive and predict its beat. The process ...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2019.116191
更新日期:2020-08-01 00:00:00
abstract::This paper presents the conjecture that functional integration may be mediated by the mutual induction and maintenance of stereotyped spatiotemporal patterns of activity (i.e., transients) in different neuronal populations. In contradistinction to temporal and rate coding models of neuronal interactions, transient cod...
journal_title:NeuroImage
pub_type: 杂志文章,评审
doi:10.1006/nimg.1997.0260
更新日期:1997-04-01 00:00:00
abstract::Cerebral blood volume (CBV)-weighted endogenous functional contrast can be obtained by the vascular space occupancy (VASO) technique. VASO relies on nonselective inversion for nulling blood signals, but the implementation of VASO at magnetic fields higher than 3 T is difficult due to converging T(1) values of tissue a...
journal_title:NeuroImage
pub_type: 杂志文章
doi:10.1016/j.neuroimage.2007.11.045
更新日期:2008-03-01 00:00:00