A double dissociation between striate and extrastriate visual cortex for pattern motion perception revealed using rTMS

Thompson, Benjamin; Aaen-Stockdale, Craig; Koski, Lisa; Hess, Robert F.

doi:10.1002/hbm.20736

Cited by 44 publications

(38 citation statements)

References 73 publications

(95 reference statements)

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“…Activations in V5 have been reported in previous studies due to recognition and early processing of visually presented motion stimuli (e.g., Seymour et al, 2009; Thompson et al, 2009; Vaina et al, 2001). In the context of action observation and imitation, the involvement of area V5 could be explained in line with these previous reports, serving as an encoder of the dynamic aspect of the movement.…”

Section: Discussionsupporting

confidence: 56%

ALE meta-analysis of action observation and imitation in the human brain

et al. 2010

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Over the last decade, many neuroimaging studies have assessed the human brain networks underlying action observation and imitation using a variety of tasks and paradigms. Nevertheless, questions concerning which areas consistently contribute to these networks irrespective of the particular experimental design and how such processing may be lateralized remain unresolved. The current study aimed at identifying cortical areas consistently involved in action observation and imitation by combining activation likelihood estimation (ALE) meta-analysis with probabilistic cytoarchitectonic maps. Meta-analysis of 139 functional magnetic resonance and positron emission tomography experiments revealed a bilateral network for both action observation and imitation. Additional subanalyses for different effectors within each network revealed highly comparable activation patterns to the overall analyses on observation and imitation, respectively, indicating an independence of these findings from potential confounds. Conjunction analysis of action observation and imitation meta-analyses revealed a bilateral network within frontal premotor, parietal, and temporo-occipital cortex. The most consistently rostral inferior parietal area was PFt, providing evidence for a possible homology of this region to macaque area PF. The observation and imitation networks differed particularly with respect to the involvement of Broca's area: whereas both networks involved a caudo-dorsal part of BA 44, activation during observation was most consistent in a more rostro-dorsal location, i.e., dorsal BA 45, while activation during imitation was most consistent in a more ventro-caudal aspect, i.e., caudal BA 44. The present meta-analysis thus summarizes and amends previous descriptions of the human brain networks related to action observation and imitation.

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Section: Discussionsupporting

confidence: 56%

ALE meta-analysis of action observation and imitation in the human brain

et al. 2010

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“…This functional localization technique has been proved to be efficient and has been widely accepted in the literature (e.g., Arshad et al 2014;GuzmanLopez et al 2011;Kammer 1998;Pascual-Leone and Walsh 2001;Stewart et al 1999). In addition, this technique has been proved to A B have localization consistent with functional MRI localizers (e.g., Thompson et al 2009). The phosphene threshold, i.e., the TMS intensity at which one perceives a phosphene in 50% of the trials, of each participant was obtained using a modified binary search (MOBS) paradigm (Tyrrell and Owens 1988) in dim light.…”

Section: Transcranial Magnetic Stimulationmentioning

confidence: 94%

Differential effect of visual motion adaption upon visual cortical excitability

Lubeck

Ombergen

Ahmad

et al. 2017

Journal of Neurophysiology

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The objectives of this study were ) to probe the effects of visual motion adaptation on early visual and V5/MT cortical excitability and) to investigate whether changes in cortical excitability following visual motion adaptation are related to the degree of visual dependency, i.e., an overreliance on visual cues compared with vestibular or proprioceptive cues. Participants were exposed to a roll motion visual stimulus before, during, and after visual motion adaptation. At these stages, 20 transcranial magnetic stimulation (TMS) pulses at phosphene threshold values were applied over early visual and V5/MT cortical areas from which the probability of eliciting a phosphene was calculated. Before and after adaptation, participants aligned the subjective visual vertical in front of the roll motion stimulus as a marker of visual dependency. During adaptation, early visual cortex excitability decreased whereas V5/MT excitability increased. After adaptation, both early visual and V5/MT excitability were increased. The roll motion-induced tilt of the subjective visual vertical (visual dependence) was not influenced by visual motion adaptation and did not correlate with phosphene threshold or visual cortex excitability. We conclude that early visual and V5/MT cortical excitability is differentially affected by visual motion adaptation. Furthermore, excitability in the early or late visual cortex is not associated with an increase in visual reliance during spatial orientation. Our findings complement earlier studies that have probed visual cortical excitability following motion adaptation and highlight the differential role of the early visual cortex and V5/MT in visual motion processing. We examined the influence of visual motion adaptation on visual cortex excitability and found a differential effect in V1/V2 compared with V5/MT. Changes in visual excitability following motion adaptation were not related to the degree of an individual's visual dependency.

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“…The coil was then moved in a 3 × 3 cm area systematically to find a position over the left hemisphere from which moving phosphenes were reported (see Stewart et al, 1999 andPascual-Leone, 2003 for more details; see Thompson et al, 2009 for the correspondence between fMRI and functional TMS localisation and Pascual-Leone and Walsh, 2001;Campana et al, 2002Campana et al, , 2006Silvanto et al, 2005a,b for examples). The average coil position was 3.0 cm dorsal and 4.6 cm lateral (left) from the inion.…”

Section: Transcranial Magnetic Stimulationmentioning

confidence: 99%