Brain Bases of Natural Scenes's Visual Perception of Natural Scenes (SCENES)
17 januari 2017 bijgewerkt door: University Hospital, Grenoble
Brain Bases of Visual Perceptionnatural Scenes of Natural Scenes.
Using the available data from psychophysics, cellular electrophysiology and functionnal neuroanatomy of visual pathway, current models of visual recognition suppose that the perception of scenes start with a parallel extraction of differents elementary visual characteristics to different spatial frequencies according to a default processing principle named : 'coarse-to-fine'.
According to this principle, the visual scene's analysis would be decomposed in two steps. Fisrt, the fast analysis of the global information borne by low frequency of the scene will provide an overview of the scene's structure and would enable a first perceptive categorisation which would be then refined, approved or denied by the latest analysis of the most local, detailed and precise information, carried by the very high spatial frequency of the scene.
The research carried out since several years is preparing a biologically plausible model and to find brain bases by different imaging techniques among healthy subjects but also patients with a brain lesion and patients with a peripheral lesion.
The main goal of this Magnetic Resonance Imaging study is to find brain bases of natural scenes's visual perception of the natural scenes.
Three studies in Magnetic Resonance Imaging will be conducted, during which subjects will have to categorize pictures of natural scenes filtered in spatial frequencies. The outcome of this study will allow to refine models of visual recognition, most of them based on analysis of spatial frequencies.
Studie Overzicht
Toestand
Voltooid
Conditie
Interventie / Behandeling
Studietype
Ingrijpend
Inschrijving (Werkelijk)
141
Fase
- Niet toepasbaar
Contacten en locaties
In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.
Studie Locaties
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La Tronche, Frankrijk, 38700
- UniversityHospitalGrenoble
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Deelname Criteria
Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
4 jaar en ouder (Kind, Volwassen, Oudere volwassene)
Accepteert gezonde vrijwilligers
Nee
Geslachten die in aanmerking komen voor studie
Allemaal
Beschrijving
Inclusion Criteria for young adults :
- Subjet over 18 years and less than 30 years
- Affiliation to a social security
- Free signed consent
- Medical exam done before participation to the study
- Normal or corrected visual acuity
Exclusion Criteria four young adults :
- Counter-argument to MRI
- Pregnant, breast-feeding or parturient women
- Adults non protected or unable to express their consent
- Adults protected
- Important earing or visual disorder
- Neuropsychiatric disorder current or past passée ou présente (exept benign epilepsy)
- Severe affection on a general level (cardiac, respiratory, hematologic, renal, hépatic, cancerous)
- Drug treatment in progress (exept anti-epileptic drug) likely to de modulate brain activity
Inclusion Criteria for old adults :
- Subjet over 50 years
- Affiliation to a social security
- Free signed consent
- Medical exam done before participation to the study
- Normal or corrected visual acuity
Exclusion Criteria four old adults :
- Counter-argument to MRI
- Pregnant, breast-feeding or parturient women
- Adults non protected or unable to express their consent
- Adults protected
- Important earing or visual disorder
- Neuropsychiatric disorder current or past passée ou présente (exept benign epilepsy)
- Severe affection on a general level (cardiac, respiratory, hematologic, renal, hépatic, cancerous)
- Drug treatment in progress (exept anti-epileptic drug) likely to de modulate brain activity
Inclusion Criteria for children :
- Children between 4 and 12 years
- Affiliation to a social security
- Free signed consent
- Medical exam done before participation to the study
- Normal or corrected visual acuity
Exclusion Criteria four children :
- Counter-argument to MRI
- Important earing or visual disorder
- Important development disorder and/or acquisitions identified by parents and/or school teachers
- Neuropsychiatric disorder current or past passée ou présente (exept benign epilepsy)
- Severe affection on a general level (cardiac, respiratory, hematologic, renal, hépatic, cancerous)
- Drug treatment in progress (exept anti-epileptic drug) likely to de modulate brain activity
Studie plan
Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.
Hoe is de studie opgezet?
Ontwerpdetails
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
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Ander: Expérience 1
Brain bases of spatial frequencies treatment 30 young adults, 20 old adults 20 children between 4 and 6 years, 20 children between 6 and 12 years and 20 young adults
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Andere namen:
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Ander: Expérience 2
Brain bases of Computer to Film (CtF) analysis 30 young adults, 20 old adults
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Andere namen:
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Ander: Expérience 3
Part of parahippocampal gyrus in Computer to Film (CtF) analysis 30 young adults, 20 old adults.
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Andere namen:
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Identify brain bases of natural scenes's visual perception of the natural scenes
Tijdsspanne: About 80 minutes
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Evaluation 1 = Visual tasks Experience 1 : Brain bases of spatial frequencies treatment Experience 2 : Brain bases of Computer to Film (CtF) natural scenes analysis MRI exam Experience 3 : Part of parahippocampal gyrus in Computer to Film (CtF) natural scenes analysis MRI exam About 30 minutes Evaluation 2 = Retinotopy : only adults that have shown activations inside occipital cortex during evaluation 1 MRI exam about 50 minutes |
About 80 minutes
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Medewerkers en onderzoekers
Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.
Sponsor
Onderzoekers
- Hoofdonderzoeker: Alexandre Krainik, Professor, Grenoble Hospital University
Publicaties en nuttige links
De persoon die verantwoordelijk is voor het invoeren van informatie over het onderzoek stelt deze publicaties vrijwillig ter beschikking. Dit kan gaan over alles wat met het onderzoek te maken heeft.
Algemene publicaties
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- Epstein R, Kanwisher N. A cortical representation of the local visual environment. Nature. 1998 Apr 9;392(6676):598-601. doi: 10.1038/33402.
- Bar M, Aminoff E, Schacter DL. Scenes unseen: the parahippocampal cortex intrinsically subserves contextual associations, not scenes or places per se. J Neurosci. 2008 Aug 20;28(34):8539-44. doi: 10.1523/JNEUROSCI.0987-08.2008.
- Epstein RA, Ward EJ. How reliable are visual context effects in the parahippocampal place area? Cereb Cortex. 2010 Feb;20(2):294-303. doi: 10.1093/cercor/bhp099. Epub 2009 May 20.
- Guérin-Dugué, A., & Oliva, A. (1999). Natural images classification from distributions of local dominant orientations, 11th Scandinavian Conference on Image Analysis SCIA'99.
- Guérin-Dugué, A., & Oliva, A. (2000). Classification of scene photographs from local orientations features. Pattern Recognition Letters, 21, 1135-1140.
- Hegde J. Time course of visual perception: coarse-to-fine processing and beyond. Prog Neurobiol. 2008 Apr;84(4):405-39. doi: 10.1016/j.pneurobio.2007.09.001. Epub 2007 Sep 29.
- Hérault, J., Oliva, A., & Guérin-Dugué, A. (1997). Scene categorisation by curvilinear component analysis of low frequency spectra. Paper presented at the IANN'97, Bruges
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- Lux S, Marshall JC, Thimm M, Fink GR. Differential processing of hierarchical visual stimuli in young and older healthy adults: implications for pathology. Cortex. 2008 Jan;44(1):21-8. doi: 10.1016/j.cortex.2005.08.001. Epub 2007 Nov 17.
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- Musel B, Chauvin A, Guyader N, Chokron S, Peyrin C. Is coarse-to-fine strategy sensitive to normal aging? PLoS One. 2012;7(6):e38493. doi: 10.1371/journal.pone.0038493. Epub 2012 Jun 4.
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- Oken BS, Kishiyama SS, Kaye JA, Jones DE. Age-related differences in global-local processing: stability of laterality differences but disproportionate impairment in global processing. J Geriatr Psychiatry Neurol. 1999 Summer;12(2):76-81. doi: 10.1177/089198879901200207.
- Oliva, A. (1995). Perception de scènes: Traitement fréquentiel du signal visuel aspects psychophysiques et neurophysiologiques. Institut National Polytechnique, Grenoble.
- Oliva A, Schyns PG. Coarse blobs or fine edges? Evidence that information diagnosticity changes the perception of complex visual stimuli. Cogn Psychol. 1997 Oct;34(1):72-107. doi: 10.1006/cogp.1997.0667.
- Park S, Brady TF, Greene MR, Oliva A. Disentangling scene content from spatial boundary: complementary roles for the parahippocampal place area and lateral occipital complex in representing real-world scenes. J Neurosci. 2011 Jan 26;31(4):1333-40. doi: 10.1523/JNEUROSCI.3885-10.2011.
- Pelli, D. G., Robson, J. G., & Wilkins, A. J. (1988). The design of a new letter chart for measuring contrast sensitivity. Clinical Vision Sciences, 2(3), 187-199.
- Peyrin C, Baciu M, Segebarth C, Marendaz C. Cerebral regions and hemispheric specialization for processing spatial frequencies during natural scene recognition. An event-related fMRI study. Neuroimage. 2004 Oct;23(2):698-707. doi: 10.1016/j.neuroimage.2004.06.020.
- Peyrin C, Chauvin A, Chokron S, Marendaz C. Hemispheric specialization for spatial frequency processing in the analysis of natural scenes. Brain Cogn. 2003 Nov;53(2):278-82. doi: 10.1016/s0278-2626(03)00126-x.
- Peyrin C, Chokron S, Guyader N, Gout O, Moret J, Marendaz C. Neural correlates of spatial frequency processing: A neuropsychological approach. Brain Res. 2006 Feb 16;1073-1074:1-10. doi: 10.1016/j.brainres.2005.12.051. Epub 2006 Jan 27.
- Peyrin C, Mermillod M, Chokron S, Marendaz C. Effect of temporal constraints on hemispheric asymmetries during spatial frequency processing. Brain Cogn. 2006 Dec;62(3):214-20. doi: 10.1016/j.bandc.2006.05.005. Epub 2006 Jul 11.
- Peyrin C, Michel CM, Schwartz S, Thut G, Seghier M, Landis T, Marendaz C, Vuilleumier P. The neural substrates and timing of top-down processes during coarse-to-fine categorization of visual scenes: a combined fMRI and ERP study. J Cogn Neurosci. 2010 Dec;22(12):2768-80. doi: 10.1162/jocn.2010.21424.
- Peyrin C, Schwartz S, Seghier M, Michel C, Landis T, Vuilleumier P. Hemispheric specialization of human inferior temporal cortex during coarse-to-fine and fine-to-coarse analysis of natural visual scenes. Neuroimage. 2005 Nov 1;28(2):464-73. doi: 10.1016/j.neuroimage.2005.06.006. Epub 2005 Jul 1.
- Poirel N, Mellet E, Houde O, Pineau A. First came the trees, then the forest: developmental changes during childhood in the processing of visual local-global patterns according to the meaningfulness of the stimuli. Dev Psychol. 2008 Jan;44(1):245-53. doi: 10.1037/0012-1649.44.1.245.
- Poirel N, Simon G, Cassotti M, Leroux G, Perchey G, Lanoe C, Lubin A, Turbelin MR, Rossi S, Pineau A, Houde O. The shift from local to global visual processing in 6-year-old children is associated with grey matter loss. PLoS One. 2011;6(6):e20879. doi: 10.1371/journal.pone.0020879. Epub 2011 Jun 8.
- Shulman GL, Sullivan MA, Gish K, Sakoda WJ. The role of spatial-frequency channels in the perception of local and global structure. Perception. 1986;15(3):259-73. doi: 10.1068/p150259.
- Shulman GL, Wilson J. Spatial frequency and selective attention to local and global information. Perception. 1987;16(1):89-101. doi: 10.1068/p160089.
- Schyns, P. G., & Oliva, A. (1994). From blobs to boundary edges: Evidence for time- and spatial-scale-dependant scene recognition. American Psychological Society, 5, 195-200.
- Schyns PG, Oliva A. Flexible, diagnosticity-driven, rather than fixed, perceptually determined scale selection in scene and face recognition. Perception. 1997;26(8):1027-38. doi: 10.1068/p261027.
- Schyns PG, Oliva A. Dr. Angry and Mr. Smile: when categorization flexibly modifies the perception of faces in rapid visual presentations. Cognition. 1999 Jan 1;69(3):243-65. doi: 10.1016/s0010-0277(98)00069-9.
- Staudinger MR, Fink GR, Mackay CE, Lux S. Gestalt perception and the decline of global precedence in older subjects. Cortex. 2011 Jul-Aug;47(7):854-62. doi: 10.1016/j.cortex.2010.08.001. Epub 2010 Aug 11.
- Van Essen, D. C., & DeYoe, E. A. (1995). Concurrent processing in the primate visual cortex. In M. Gazzaniga (Ed.), The cognitive Neurosciences (pp. 383-400). Cambridge: Bradford Book.
- Vasseur F, Delon-Martin C, Bordier C, Warnking J, Lamalle L, Segebarth C, Dojat M. fMRI retinotopic mapping at 3 T: benefits gained from correcting the spatial distortions due to static field inhomogeneity. J Vis. 2010 Oct 26;10(12):30. doi: 10.1167/10.12.30.
- Warnking J, Dojat M, Guerin-Dugue A, Delon-Martin C, Olympieff S, Richard N, Chehikian A, Segebarth C. fMRI retinotopic mapping--step by step. Neuroimage. 2002 Dec;17(4):1665-83. doi: 10.1006/nimg.2002.1304.
Studie record data
Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.
Bestudeer belangrijke data
Studie start
1 april 2012
Primaire voltooiing (Werkelijk)
1 maart 2016
Studie voltooiing (Werkelijk)
1 augustus 2016
Studieregistratiedata
Eerst ingediend
18 juli 2016
Eerst ingediend dat voldeed aan de QC-criteria
18 juli 2016
Eerst geplaatst (Schatting)
21 juli 2016
Updates van studierecords
Laatste update geplaatst (Schatting)
18 januari 2017
Laatste update ingediend die voldeed aan QC-criteria
17 januari 2017
Laatst geverifieerd
1 januari 2017
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Andere studie-ID-nummers
- 38RC11.221
Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .