nach oben

Experimental Brain Research

Erschienen in:

01.10.2004 | Research Note

Surface segregation driven by orientation-defined junctions

verfasst von: Takahiro Kawabe, Kayo Miura

Erschienen in: Experimental Brain Research | Ausgabe 3/2004

Einloggen, um Zugang zu erhalten

Abstract.

This study was designed to ascertain whether the human visual system can segregate overlapped surfaces by integrating texture borders at second-order X-junctions. The stimuli used were crossed vertical and horizontal stripes consisting of Gabor micro-patterns. We manipulated the orientation of the center region of each stripe. Observers judged whether the crossed stripes appeared as “two overlapped stripes” or “five individual regions.” The results showed that the probability of perceiving overlapped stripes exceeded the chance level (0.5) when the orientation differences between the center and flanking regions were less than 30°. We suggest that the integration of texture borders along each stripe occurs by the filter-rectify-filter mechanism, resulting in the impression of overlapped surfaces. When this fails, the outcome is the perception of five individual regions.

Adelson EH (1993) Perceptual organization and the judgment of brightness. Science 262:2042–2044PubMed

Ahissar M, Hochstein S (1995) How early is early vision? Evidence from perceptual learning. In: Papathomas TV, Chubb C, Gorea A, Kowler E (eds) Early vision and beyond. MIT Press, MA, pp 199–206

Arsenault AS, Wilkinson F, Kingdom FAA (1999) Modulation frequency and orientation tuning of second-order texture mechanisms. J Opt Soc Am A 16:427–435

Beck J (1966) Effect of orientation and of shape similarity on perceptual grouping. Percept Psychophys 1:300–302

Bergen JR (1991) Theories of visual texture perception. In: Regan D (ed) Vision and visual dysfunction, vol 10, Spatial vision. Macmillan, New York, pp 114–134

Bergen JR, Adelson EH (1988) Early vision and texture perception. Nature 333:363–364CrossRefPubMed

Field DJ, Hayes A, Hess RF (1993) Contour integration by the human visual system: evidence for a local association field. Vision Res 33:173–193CrossRefPubMed

Gorea A, Papathomas TV (1993) Double opponency as a generalized concept in texture segregation illustrated with stimuli defined by color, luminance, and orientation. J Opt Soc Am A 10:1450–1462

Kawabe T, Miura K (2004) Configuration effects on texture transparency. Spatial Vis 17:187–200

Kingdom FAA, Keeble DRT (2000) Luminance spatial frequency differences facilitate the segmentation of superimposed textures. Vision Res 40:1077–1087CrossRefPubMed

Kingdom FAA, Prins N, Hayes A (2003) Mechanism independence for texture-modulation detection is consistent with a filter-rectify-filter mechanism. Vis Neurosci 20:65–76CrossRefPubMed

Landy MS, Bergen JR (1991) Texture segregation and orientation gradient. Vision Res 31:679–691CrossRefPubMed

Langley K, Fleet DJ, Hibbard PB (1996) Linear filtering precedes nonlinear processing in early vision. Curr Biol 6:891–896CrossRefPubMed

Mareschal I, Baker CL Jr (1998) A cortical locus for the processing of contrast-defined contours. Nature Neurosci 1:150–154CrossRefPubMed

Mitsudo H (2003) Information regarding structure and lightness based on phenomenal transparency influences the efficiency of visual search. Perception 32:53–66CrossRefPubMed

Motoyoshi I, Nishida S (2001) Visual response saturation to orientation contrast in the perception of texture boundary. J Opt Soc Am A 18:2209–2219

Motoyoshi I, Nishida S (2002) Spatiotemporal interactions in detection of texture orientation modulations. Vision Res 42:2829–2841CrossRefPubMed

Prins N, Kingdom FAA (2002) Orientation- and frequency- modulated at low depth of modulation are processed by off-orientation and off-frequency texture mechanisms. Vision Res 42:705–713CrossRefPubMed

Prins N, Kingdom FAA (2003) Detection and discrimination of texture modulations defined by orientation, spatial frequency, and contrast. J Opt Soc Am A 20:401–410

Sutter A, Sperling G, Chubb C (1995) Measuring the spatial frequency selectivity of second-order texture mechanisms. Vision Res 35:915–924CrossRefPubMed

van Tonder GJ, Ejima Y (2000) From image segmentation to anti-textons. Perception 29:1231–1247CrossRefPubMed

Watanabe T, Cavanagh P (1996) Texture laciness: the texture equivalent of transparency? Perception 25:293–304PubMed

Wenderoth P, Clifford CW, Wyatt AM (2001) Hierarchy of spatial interactions in the processing of contrast-defined contours. J Opt Soc Am A 18:2190–2196

Wolfson SS, Landy MS (1998) Examining edge- and region-based texture analysis mechanisms. Vision Res 38:439–446CrossRefPubMed

Titel: Surface segregation driven by orientation-defined junctions
verfasst von: Takahiro Kawabe
Kayo Miura
Publikationsdatum: 01.10.2004
Verlag: Springer-Verlag
Erschienen in: Experimental Brain Research / Ausgabe 3/2004
Print ISSN: 0014-4819
Elektronische ISSN: 1432-1106
DOI: https://doi.org/10.1007/s00221-004-2065-0

Leitlinien kompakt für die Neurologie

Mit medbee Pocketcards sicher entscheiden.

^{Seit 2022 gehört die medbee GmbH zum Springer Medizin Verlag}

Kostenlos registrieren

Neu im Fachgebiet Neurologie

Sind Frauen die fähigeren Ärzte?

30.04.2024 Gendermedizin Nachrichten

Patienten, die von Ärztinnen behandelt werden, dürfen offenbar auf bessere Therapieergebnisse hoffen als Patienten von Ärzten. Besonders gilt das offenbar für weibliche Kranke, wie eine Studie zeigt.

Akuter Schwindel: Wann lohnt sich eine MRT?

28.04.2024 Schwindel Nachrichten

Akuter Schwindel stellt oft eine diagnostische Herausforderung dar. Wie nützlich dabei eine MRT ist, hat eine Studie aus Finnland untersucht. Immerhin einer von sechs Patienten wurde mit akutem ischämischem Schlaganfall diagnostiziert.

Niedriger diastolischer Blutdruck erhöht Risiko für schwere kardiovaskuläre Komplikationen

25.04.2024 Hypotonie Nachrichten

Wenn unter einer medikamentösen Hochdrucktherapie der diastolische Blutdruck in den Keller geht, steigt das Risiko für schwere kardiovaskuläre Ereignisse: Darauf deutet eine Sekundäranalyse der SPRINT-Studie hin.

Frühe Alzheimertherapie lohnt sich

25.04.2024 AAN-Jahrestagung 2024 Nachrichten

Ist die Tau-Last noch gering, scheint der Vorteil von Lecanemab besonders groß zu sein. Und beginnen Erkrankte verzögert mit der Behandlung, erreichen sie nicht mehr die kognitive Leistung wie bei einem früheren Start. Darauf deuten neue Analysen der Phase-3-Studie Clarity AD.

Update Neurologie

Bestellen Sie unseren Fach-Newsletter und bleiben Sie gut informiert.

Newsletter bestellen

Springer Medizin

Abstract.

Bitte loggen Sie sich ein, um Zugang zu diesem Inhalt zu erhalten

Weitere Artikel der Ausgabe 3/2004

Some thoughts on cortical minicolumns

The strategies to regulate and to modulate the propulsive forces during gait initiation in lower limb amputees

When two eyes are better than one in prehension: monocular viewing and end-point variance

Figure copying in Williams syndrome and normal subjects

Distant cortical locations of the upper and lower quadrants of the visual field represented by neurons with elongated and radially oriented receptive fields

Can the motor system resolve a premovement bias in grip aperture? Online analysis of grasping the Müller-Lyer illusion