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2007 International journal of pattern recognition and artificial intelligence  
Here, we study the human 3-D volumetric object perception that is induced by a visual phenomenon named as the pantomime effect and by the monocular shading cues.  ...  We measured human brain activities using fMRI when the subjects were observing the visual stimuli.  ...  We also thank the two reviewers for their insightful comments to improve this paper.  ... 
doi:10.1142/s0218001407005995 fatcat:2xkwgio6nfarlef5yiltvsibzy

From imitation to meaning: circuit plasticity and the acquisition of a conventionalized semantics

Ricardo R. García, Francisco Zamorano, Francisco Aboitiz
2014 Frontiers in Human Neuroscience  
Firstly, the capacity to direct the attention of others to a common object may have been crucial for developing a consensual referential system.  ...  The capacity for language is arguably the most remarkable innovation of the human brain.  ...  ACKNOWLEDGMENTS This work was supported by the Millenium Center for the Neuroscience of Memory, Chile, NC10-001-F, which is developed with funds from the Innovation for Competitivity from the Ministry  ... 
doi:10.3389/fnhum.2014.00605 pmid:25152726 pmcid:PMC4126550 fatcat:eeyqt3hoj5gjzpgmeyie4kk6xi

The dual loop model: its relation to language and other modalities

Michel Rijntjes, Cornelius Weiller, Tobias Bormann, Mariacristina Musso
2012 Frontiers in Evolutionary Neuroscience  
The current neurobiological consensus of a general dual loop system scaffolding human and primate brains gives evidence that the dorsal and ventral connections subserve similar functions, independent of  ...  These aspects might be helpful for understanding what kind of biological system the language faculty is, and how it relates to other systems in our own species and others.  ...  This system is also involved in understanding the meaning of the movement when pantomiming object use (h1) (Vry et al. in preparation) .  ... 
doi:10.3389/fnevo.2012.00009 pmid:22783188 pmcid:PMC3388276 fatcat:6enigx6535drngtq44zhlhoaba

Extreme capsule is a bottleneck for ventral pathway

Ehsan Shekari, Sepideh Goudarzi, Elahe Shahriari, Mohammad Taghi Joghataei
2021 IBRO Neuroscience Reports  
Nevertheless, it is not clear whether extreme capsule itself is an association fiber pathway or only a bottleneck for other association fibers to pass.  ...  probably a bottleneck for the passage of uncinated fasciculus (UF) and inferior fronto-occipital fasciculus (IFOF), and these fasciculi are responsible for the respective roles in language processing.  ...  In the locomotor system, the posterior parietal and prefrontal regions are involved in imaging the movement and pantomime use of objects.  ... 
doi:10.1016/j.ibneur.2020.11.002 pmid:33861816 pmcid:PMC8019950 fatcat:clvy7f2wdvdszoquzcxmiletve

A distributed network critical for selecting among tool-directed actions

Christine E. Watson, Laurel J. Buxbaum
2015 Cortex  
Additionally, the data allow us to posit a SMG-involved subtype of apraxia characterized by an inability to resolve action competition. 1 Overall tool use pantomime accuracy of the new control participants  ...  Here, 31 such patients pantomimed or recognized tool use actions for "conflict" and "non-conflict" tools.  ...  Acknowledgments This research was funded by National Institutes of Health (NIH) grants R01NS065049 (LJB) and T32HD007425 (CEW, trainee).  ... 
doi:10.1016/j.cortex.2015.01.007 pmid:25681649 pmcid:PMC4385438 fatcat:7le4acpoqncyphpggzjoghlosy

Structural organization of the praxis network predicts gesture production: Evidence from healthy subjects and patients with schizophrenia

P.V. Viher, A. Abdulkadir, P. Savadijev, K. Stegmayer, M. Kubicki, N. Makris, S. Karmacharya, A. Federspiel, S. Bohlhalter, T. Vanbellingen, R. Müri, R. Wiest (+2 others)
2020 Cortex  
Furthermore, reduced tract integrity, for example in the superior longitudinal fascicle, arcuate fascicle or corpus callosum were related to gesture deficits.  ...  We found an association of gesture deficit with reduced global and local efficiency of the praxis network.  ...  For instance, tool use depends on a leftlateralized network that includes a dorsal stream for object localization and a ventral stream for object recognition (Ramayya et al., 2010) .  ... 
doi:10.1016/j.cortex.2020.05.023 pmid:33011518 fatcat:ajxeynivzzbqvaxm7rzlqwaave

Hand-independent representation of tool-use pantomimes in the left anterior intraparietal cortex

Kenji Ogawa, Fumihito Imai
2016 Experimental Brain Research  
In the fMRI scanner, one of three kinds of tools was displayed in pictures or letters, and the participants made pantomimes of the use of these tools using the right hand for the picture stimuli or with  ...  Previous neuropsychological studies of ideomotor apraxia (IMA) indicated impairments in pantomime actions for tool use for both right and left hands following lesions of parieto-premotor cortices in the  ...  In addition, the interaction between dorsal and ventral stream processing for the integration of proper tool-use knowledge occurs within the IPL Mahon et al. 2013; Kristensen et al. 2016) .  ... 
doi:10.1007/s00221-016-4765-7 pmid:27591782 fatcat:m5vakm37pvf5hl7tx5kvhbfdsq

Implicit biases in visually guided action

Berit Brogaard
2020 Synthese  
object use from the ventral stream to the dorso-dorsal pathway.  ...  Evidence points to two overlapping action pathways: a dorso-dorsal pathway that calculates features of the object to be acted on, and a ventro-dorsal pathway that transmits stored information about skilled  ...  The ventro-dorsal use system processes sensorimotor 'functional use' information for skilled action for pantomime or real object use.  ... 
doi:10.1007/s11229-020-02588-1 fatcat:yfzyvexfgvf3hb65mr5le5hnka

Mapping the human praxis network: an investigation of white matter disconnection in limb apraxia [article]

Hannah Rosenzopf, Daniel Wiesen, Alexandra Basilakos, Grigori Yourganov, Leonardo Bonilha, Christopher Rorden, Julius Fridriksson, Hans-Otto Karnath, Christoph Sperber
2020 bioRxiv   pre-print
AbstractStroke to the left hemisphere of the brain can cause limb apraxia, a disorder characterised by deficits of higher order motor skills such as the failure to accurately produce meaningful gestures  ...  This disorder provides unique insights into the anatomy of the human praxis system. The present study aimed to identify the structural brain network, that when damaged by stroke, causes limb apraxia.  ...  [For those gestures involving objects, those objects weren't actually present, and participants had to pantomime their use]).  ... 
doi:10.1101/2020.04.14.041442 fatcat:mo2i5f2bq5be7dtup427e7r6bm

Single-Case Disconnectome Lesion-symptom Mapping: Identifying Two Subtypes of Limb Apraxia [article]

Rachel Metzgar, Harrison Stoll, Scott Grafton, Laurel J Buxbaum, Frank Garcea
2022 bioRxiv   pre-print
Using these criteria, one participant was disproportionately impaired at meaningless gesture imitation, and the other participant was disproportionately impaired at pantomiming tool use.  ...  Our results demonstrate that relatively focal lesions to specific portions of the Tool Use Network can be associated with distinct limb apraxia subtypes.  ...  Thus, it will be critical for future work to determine if deficits in meaningless gesture imitation and pantomime of tool use result from damage to dissociable fiber bundles of the SLF.  ... 
doi:10.1101/2022.02.22.481524 fatcat:6onyxg35ajgzfeh6g6v5v6pppy

Gestures, Vocalizations, and Memory in Language Origins

Francisco Aboitiz
2012 Frontiers in Evolutionary Neuroscience  
The recruitment of the dorsal component for vocalization behavior in the human lineage, together with a direct cortical control of the subcortical vocalizing system, are proposed to represent a fundamental  ...  At its core, this circuit constitutes an auditory-vocal sensorimotor circuit with two main components, a "ventral pathway" connecting anterior auditory regions with anterior ventrolateral prefrontal areas  ...  In my view, a gestural pantomime may have been accompanied by the use of sounds imitating the referred object; this simultaneity of gesture and vocalization is likely to have been crucial for the establishment  ... 
doi:10.3389/fnevo.2012.00002 pmid:22347184 pmcid:PMC3269654 fatcat:6jdbzfpnhrgvzmoclgu45zz3p4

Structural connectivity differs between males and females in the brain object manipulation network

Dongha Lee, Taekwon Son, Tyler Davis
2021 PLoS ONE  
The global node strength found in the female parietal network was significantly higher than that in males but not for the entire object manipulation, ventral temporal, and motor networks.  ...  Object control skills are one of the most important abilities in daily life. Knowledge of object manipulation is an essential factor in improving object control skills.  ...  The ventral visual pathway: an expanded neural framework for the processing of object quality.  ... 
doi:10.1371/journal.pone.0253273 pmid:34115811 pmcid:PMC8195422 fatcat:7excztd2x5avdmipqmt3omhnbe

A Brain for Speech. Evolutionary Continuity in Primate and Human Auditory-Vocal Processing

Francisco Aboitiz
2018 Frontiers in Neuroscience  
Although there is an overall conservatism both in peripheral systems and in central neural circuits, a few changes were critical for the expansion of vocal plasticity and the elaboration of proto-speech  ...  The auditory-vocal circuit became progressively coupled to multimodal systems conveying information about objects and events, which gradually led to the acquisition of modern speech.  ...  ACKNOWLEDGMENTS Special thanks to Isabel Guerrero for producing the illustrations, and thanks to the reviewers and editor of this article for their insightful comments.  ... 
doi:10.3389/fnins.2018.00174 pmid:29636657 pmcid:PMC5880940 fatcat:6ylgqytfkvhklcltisnxy7rtlm

Abnormalities in higher cortical visual processing

Feyza Çalış, Burak Turgut, Fatoş Altun Turgut
2018 Advances in Ophthalmology & Visual System  
The main purpose of this review article is to summarize the higher cortical and visual dysfunctions and to facilitate the understanding of these.  ...  Thus, the striate occipital lesions cause deficits affected the visual field while as extrastriate lesions cause deficits related to the perception of color and motion.  ...  For the diagnosis we have to evaluate the patients ability to name, describe uses for, and pantomime the use of visually presented objects.  ... 
doi:10.15406/aovs.2018.08.00303 fatcat:dayrcmem45d4te7povpv7bvina

Differential Roles of Ventral and Dorsal Streams for Conceptual and Production-Related Components of Tool Use in Acute Stroke Patients

Markus Martin, Lena Beume, Dorothee Kümmerer, Charlotte S. M. Schmidt, Tobias Bormann, Andrea Dressing, Vera M. Ludwig, Roza M. Umarova, Irina Mader, Michel Rijntjes, Christoph P. Kaller, Cornelius Weiller
2015 Cerebral Cortex  
Deficits affecting both the selection of the appropriate recipient for a given tool (ToolSelect, e.g., choosing the nail for the hammer), and the performance of the typical tool-associated action (ToolUse  ...  Impaired tool use despite preserved basic motor functions occurs after stroke in the context of apraxia, a cognitive motor disorder.  ...  well as fiber connections toward the anterior and inferior IFG along extreme capsule and uncinated fascicle confirms the specific importance of the ventral stream for conceptual components of tool use  ... 
doi:10.1093/cercor/bhv179 pmid:26271112 fatcat:6xk5fo3xv5dafcbdypd5srhylm
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