Functional Anatomy of Spatial Mental Imagery Generated from Verbal Instructions

Mellet, Emmanuel; Tzourio, N.; Crivello, Fabrice; Joliot, Marc; Denis, Michel; Mazoyer, Bernard

doi:10.1523/jneurosci.16-20-06504.1996

Cited by 243 publications

(196 citation statements)

References 38 publications

(55 reference statements)

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“…Similar patterns of activation have been observed in studies of the manipulation of visuo-spatial information [19] and allocentric relations [20].…”

Section: The Neural Substrates Of Reasoning About Relationssupporting

confidence: 79%

Analogical Representation and Graph Comprehension

Feeney

Webber

2003

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Abstract. In this paper we argue that people construct analogical representations of the information that they extract from simple graphs and that these representations are subject to the same nomic constraints as the original graphical representations. We briefly review behavioural and neuropsychological findings across a range of tasks related to graph comprehension, which suggest that people spontaneously construct analogical representations with a spatial quality. We describe two experiments demonstrating that the representations constructed by people reasoning about graphs also possess this spatial quality. We contrast our results with the predictions of current models of graph comprehension and outline some further questions for research.

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“…Similar patterns of activation have been observed in studies of the manipulation of visuo-spatial information [19] and allocentric relations [20].…”

Section: The Neural Substrates Of Reasoning About Relationssupporting

confidence: 79%

Analogical Representation and Graph Comprehension

Feeney

Webber

2003

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“…For example, a study conducted by Just and colleagues [26] compared the cortical activation when participants either read or listened to high-and low-imagery sentences. The highimagery condition elicited greater activation in parietal and prefrontal regions similar to those observed in previous mental imagery studies [1,5,6,22,27,28]. In sum, language stimuli, in particular sentence stimuli, has been shown to elicit mental images in much the same way as non-verbal stimuli.…”

Section: Introductionsupporting

confidence: 84%

“…Previous studies have indicated that mental imagery generated from verbal instructions and from visual encoding activate similar cortical regions [22][23][24][25]. For example, a study conducted by Just and colleagues [26] compared the cortical activation when participants either read or listened to high-and low-imagery sentences.…”

Section: Introductionmentioning

confidence: 99%

The Timecourse of Activation Within the Cortical Network Associated with Visual Imagery

Newman¹,

Lee²,

Bates³

2007

TONIJ

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Abstract:The current study examined the hemodynamic timecourse of activation within a network of regions that is thought to be associated with visual imagery. Two experimental conditions were examined that were designed to place differential demands on specific nodes within the visual imagery network. The two tasks were an object inspection task and a mental rotation task. The two conditions recruited overlapping cortical regions; however several regions revealed a differential response to object inspection and mental rotation. The mental rotation condition elicited greater activation in parietal cortex, lateral occipital/temporal regions, and bilateral prefrontal cortex. Conversely, the object inspection condition elicited greater activation in inferior extrastriate cortex, the inferior frontal gyrus, and the right cerebellum. When examining the timecourse of activation three different timecourse patterns were observed across cortical regions and conditions. The shape of the hemodynamic timecourse appears to correspond strongly with the cognitive processing taking place within the region, not the stimulus paradigm. The paper discusses the significance of those varying timecourse shapes and has implications for the appropriateness of using the canonical hrf during fMRI data analysis.

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“…1998), including mental imagery (Mellet et al. 1996; Kosslyn and Thompson 2003; Ganis et al. 2004; Mazard et al.…”

Section: Discussionmentioning

confidence: 99%

“…Among these studies was a report on pure obsessive–compulsive patients presenting the reduction of white matter adjacent to the right SMG as the sole finding (Mellet et al. 1996; Ganis et al. 2004; Slotnick et al.…”

Section: Discussionmentioning

confidence: 99%

Dynamic interactions of the cortical networks during thought suppression

et al. 2016

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ObjectivesThought suppression has spurred extensive research in clinical and preclinical fields, particularly with regard to the paradoxical aspects of this behavior. However, the involvement of the brain's inhibitory system in the dynamics underlying the continuous effort to suppress thoughts has yet to be clarified. This study aims to provide a unified perspective for the volitional suppression of internal events incorporating the current understanding of the brain's inhibitory system.Materials and MethodsTwenty healthy volunteers underwent functional magnetic resonance imaging while they performed thought suppression blocks alternating with visual imagery blocks. The whole dataset was decomposed by group‐independent component analysis into 30 components. After discarding noise components, the 20 valid components were subjected to further analysis of their temporal properties including task‐relatedness and between‐component residual correlation.ResultsCombining a long task period and a data‐driven approach, we observed a right‐side‐dominant, lateral frontoparietal network to be strongly suppression related. This network exhibited increased fluctuation during suppression, which is compatible with the well‐known difficulty of suppression maintenance.ConclusionsBetween‐network correlation provided further insight into the coordinated engagement of the executive control and dorsal attention networks, as well as the reciprocal activation of imagery‐related components, thus revealing neural substrates associated with the rivalry between intrusive thoughts and the suppression process.

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Functional Anatomy of Spatial Mental Imagery Generated from Verbal Instructions

Cited by 243 publications

References 38 publications

Analogical Representation and Graph Comprehension

Analogical Representation and Graph Comprehension

The Timecourse of Activation Within the Cortical Network Associated with Visual Imagery

Dynamic interactions of the cortical networks during thought suppression

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