The Dynamics of Interhemispheric Compensatory Processes in Mental Imagery
@article{Sack2005TheDO, title={The Dynamics of Interhemispheric Compensatory Processes in Mental Imagery}, author={Alexander Thomas Sack and Joan A. Camprodon and {\'A}lvaro Pascual-Leone and Rainer Goebel}, journal={Science}, year={2005}, volume={308}, pages={702 - 704} }
The capacity to generate and analyze mental visual images is essential for many cognitive abilities. We combined triple-pulse transcranial magnetic stimulation (tpTMS) and repetitive TMS (rTMS) to determine which distinct aspect of mental imagery is carried out by the left and right parietal lobe and to reveal interhemispheric compensatory interactions. The left parietal lobe was predominant in generating mental images, whereas the right parietal lobe was specialized in the spatial comparison…
194 Citations
The Interaction Between the Parietal and Motor Areas in Dynamic Imagery Manipulation: An fMRI Study
- Psychology, Biology
- 2011
Mental imagery is a cognitive function that includes sub-functions such as generation, transformation, and matching. However, the neural substrates for each sub-function are not yet clear. In the…
Does hemineglect affect visual mental imagery? Imagery deficits in representational and perceptual neglect
- Psychology, BiologyCognitive neuropsychology
- 2010
There is a specific relationship between hemispatial neglect and deficits in visualmental imagery and it is demonstrated that the right hemisphere plays a specific role in visual mental imagery.
Dynamic Premotor-to-Parietal Interactions during Spatial Imagery
- Psychology, BiologyThe Journal of Neuroscience
- 2008
This work combined time-resolved event-related functional magnetic resonance imaging with analyses of interactions between brain regions (functional and effective brain connectivity) to unravel the premotor–parietal dynamics underlying spatial imagery and presents an integrative neurobiological model of spatial imagery.
Hemispheric contribution to categorical and coordinate representational processes: A study on brain-damaged patients
- Psychology, BiologyNeuropsychologia
- 2008
1-Hz Repetitive Transcranial Magnetic Stimulation over the Posterior Parietal Cortex Modulates Spatial Attention
- Psychology, BiologyFront. Hum. Neurosci.
- 2016
The enhancement in alerting and spatial orienting function following low-frequency rTMS of left PPC is interpreted as reflecting a disinhibition of right PPC via an inter-hemispheric inhibition account, indicating that theright PPC serves an important function in spatial Orienting and the alerting activities.
Imaging imagination : a multi-method investigation into the brain dynamics of visual mental imagery
- Psychology, Biology
- 2011
The relation between subjects’ behavioural performances and brain activations during mental imagery demonstrate the crucial role of mesial SFG in forming and maintaining the mental image of the scene.
TMS in the parietal cortex: Updating representations for attention and action
- Psychology, BiologyNeuropsychologia
- 2006
Dissecting hemisphere-specific contributions to visual spatial imagery using parametric brain mapping
- Psychology, BiologyNeuroImage
- 2014
Hemispheric Differences within the Fronto-Parietal Network Dynamics Underlying Spatial Imagery
- Psychology, BiologyFront. Psychology
- 2012
It is argued that spatial imagery constitutes a multifaceted cognitive construct that can be segregated in several distinct mental sub processes, each associated with activity within specific lateralized fronto-parietal (sub) networks, forming the basis of the here proposed dynamic network model of spatial imagery.
Imagery of a moving object: The role of occipital cortex and human MT/V5+
- Biology, PsychologyNeuroImage
- 2010
References
SHOWING 1-10 OF 38 REFERENCES
Tracking the Mind's Image in the Brain II Transcranial Magnetic Stimulation Reveals Parietal Asymmetry in Visuospatial Imagery
- Psychology, BiologyNeuron
- 2002
Tracking the Mind's Image in the Brain I Time-Resolved fMRI during Visuospatial Mental Imagery
- Psychology, BiologyNeuron
- 2002
Matching two imagined clocks: the functional anatomy of spatial analysis in the absence of visual stimulation.
- Biology, PsychologyCerebral cortex
- 2000
This result clarifies the nature of top-down processes in the dorsal stream of the human cerebral cortex and provides evidence for a specific convergence of the pathways of imagery and visual perception within the parietal lobes.
A left hemisphere basis for visual mental imagery?
- Psychology, Environmental ScienceNeuropsychologia
- 1985
Enhanced visual spatial attention ipsilateral to rTMS-induced 'virtual lesions' of human parietal cortex
- Biology, PsychologyNature Neuroscience
- 2001
The ipsilateral enhancement of visual attention after repetitive transcranial magnetic stimulation of parietal cortex at parameters known to reduce cortical excitability underline the potential of focal brain dysfunction to produce behavioral improvement and give experimental support to models of interhemispheric competition in the distributed brain network for spatial attention.
Functional Anatomy of Spatial Mental Imagery Generated from Verbal Instructions
- Psychology, BiologyThe Journal of Neuroscience
- 1996
Results provide evidence that the so-called dorsal route known to process visuospatial features can be recruited by auditory verbal stimuli and confirm previous reports indicating that some mental imagery tasks may not involve any significant participation of early visual areas.
Spatial attention and neglect: parietal, frontal and cingulate contributions to the mental representation and attentional targeting of salient extrapersonal events.
- Psychology, BiologyPhilosophical transactions of the Royal Society of London. Series B, Biological sciences
- 1999
The syndrome of contralesional neglect reflects a lateralized disruption of spatial attention, and patients with left neglect experience a loss of salience in the mental representation and conscious perception of the left side and display a reluctance to direct orientating and exploratory behaviours to the left.
Effect of transcranial magnetic stimulation on single‐unit activity in the cat primary visual cortex
- Biology, PsychologyThe Journal of physiology
- 2003
Recordings in the primary visual cortex of the anaesthetised and paralysed cat found that a single TMS pulse elicited distinct episodes of enhanced and suppressed activity: in general, a facilitation of activity was found during the first 500 ms, followed thereafter by a suppression of activity lasting up to a few seconds.
Transcranial magnetic stimulation and cognitive neuroscience
- Psychology, BiologyNature Reviews Neuroscience
- 2000
The most important (and least understood) considerations regarding the use of transcranial magnetic stimulation for cognitive neuroscience are discussed and advances in theUse of this technique for the replication and extension of findings from neuropsychology are outlined.