Brain Bases of Natural Scenes's Visual Perception of Natural Scenes (SCENES)
17. januar 2017 oppdatert av: 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.
Studieoversikt
Status
Fullført
Forhold
Intervensjon / Behandling
Studietype
Intervensjonell
Registrering (Faktiske)
141
Fase
- Ikke aktuelt
Kontakter og plasseringer
Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.
Studiesteder
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La Tronche, Frankrike, 38700
- UniversityHospitalGrenoble
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Deltakelseskriterier
Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
4 år og eldre (Barn, Voksen, Eldre voksen)
Tar imot friske frivillige
Nei
Kjønn som er kvalifisert for studier
Alle
Beskrivelse
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
Studieplan
Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.
Hvordan er studiet utformet?
Designdetaljer
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Ingen (Open Label)
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
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Annen: 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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Andre navn:
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Annen: Expérience 2
Brain bases of Computer to Film (CtF) analysis 30 young adults, 20 old adults
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Andre navn:
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Annen: Expérience 3
Part of parahippocampal gyrus in Computer to Film (CtF) analysis 30 young adults, 20 old adults.
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Andre navn:
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Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
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Identify brain bases of natural scenes's visual perception of the natural scenes
Tidsramme: 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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Samarbeidspartnere og etterforskere
Det er her du vil finne personer og organisasjoner som er involvert i denne studien.
Sponsor
Etterforskere
- Hovedetterforsker: Alexandre Krainik, Professor, Grenoble Hospital University
Publikasjoner og nyttige lenker
Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.
Generelle publikasjoner
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- 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.
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- Hubel DH, Wiesel TN. Ferrier lecture. Functional architecture of macaque monkey visual cortex. Proc R Soc Lond B Biol Sci. 1977 Jul 28;198(1130):1-59. doi: 10.1098/rspb.1977.0085. No abstract available.
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- Monoyer, F. (1875). Echelle typographique pour la détermination de l'acuité visuelle. (Acad. des Sciences, Comptes rendus). Gaz. Méd. De Paris, 80, 113.
- 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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- 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.
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- 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.
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- 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.
Studierekorddatoer
Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.
Studer hoveddatoer
Studiestart
1. april 2012
Primær fullføring (Faktiske)
1. mars 2016
Studiet fullført (Faktiske)
1. august 2016
Datoer for studieregistrering
Først innsendt
18. juli 2016
Først innsendt som oppfylte QC-kriteriene
18. juli 2016
Først lagt ut (Anslag)
21. juli 2016
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
18. januar 2017
Siste oppdatering sendt inn som oppfylte QC-kriteriene
17. januar 2017
Sist bekreftet
1. januar 2017
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Andre studie-ID-numre
- 38RC11.221
Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .