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Laborator 5 Mecanisme Cognitive

Laborator 5 Mecanisme Cognitive. Prep. Drd. Mihaela Popa Chraif. Teme laborator5: 11 noiembrie 2009. 1 FORMELE COMPLEXE ALE PERCEPTIEI perceptia timpului perceptia spatiului (2 vizual; 3 auditiv; proprioceptiv) . perceptia miscarii 2. perceptia subliminala

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Laborator 5 Mecanisme Cognitive

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  1. Laborator 5 Mecanisme Cognitive Prep. Drd. Mihaela Popa Chraif

  2. Teme laborator5: 11 noiembrie 2009 1 FORMELE COMPLEXE ALE PERCEPTIEI • perceptia timpului • perceptia spatiului (2 vizual; 3 auditiv; proprioceptiv) • . perceptia miscarii • 2. perceptia subliminala • 3. Perceptia extrasenzoriala

  3. INDICI MONOCULARI MARIMEA RELATIVA A OBIECTELOR; INALTIMEA IN PLAN LA CARE SE AFLA SITUAT UN OBIECT DIN CAMPUL VIZUAL (OBIECTELE AMPLASATE MAI SUS PAR CA SE AFLA LA O DISTANTA MAI MARE); SUPERPOZITIA; UMBRA; GRADIENTUL DE TEXTURA; PARALAXA DE MISCARE; PERSPECTIVA LINIARA; INDICI BINOCULARI 1. DISPARITATEA IMAGINILOR- IMAGINILE PERCEPUTE DE CEI DOI OCHI SUNT USOR DIFERITE INTRE ELE; CREIERUL COMPARA IMAGINILE VENITE DE LA CEI DOI OCHI SI FOLOSESTE DISPARITATEA DINTRE ELE CA MASURA A DISTANTEI LOR; 2. CONVERGENTA MUSCHILOR OCULARI; LOCALIZAREA OBIECTELOR IN SPATIUL 3D

  4. Perceptia adancimii (3D)

  5. Crearea iluziei de vizionare 3D

  6. Recunoasterea formelorhttp://www.vis.uni-stuttgart.de/~botchen/botchen.de/research/06tvc.htm

  7. Recunoasterea formelor

  8. Sistemul perceptiv trebuie sa determine pozitia obiectului (localizarea) si sa recunoasca ceea ce este. • Asocierea: combinarea rezultatelor activitatii diferitelor arii corticale care proceseaza diferit informatii fundamentale (forma si culoare) pentru a determina perceptia coerenta a unui obiect. • Stadii ale recunoasterii: • linii si margini; • Compararea cu diferite categorii de obiecte inmagazinate in memoria vizuala

  9. Recunoasterea formelor

  10. Teoria integrarii trasaturilor (Anne Treisman, 1986) • In stadiul preatentional sunt percepute forma si culoarea • In stadiul atentional, atentia concentrata este folosita pentru identificarea corecta si lipirea trasaturilor unele de altele intr-un tot integrat Limite/dificultati: teoria controlului dinamic (Di Lollo, Kawahara, Suvic si Visser, 2001) Exista un sistem maleabil, al carui componente pot fi rapid reconfigurate pentru a realiza sarcini diferite in momente diferite

  11. Geoni (Biederman, 1987)http://geon.usc.edu/~biederman/

  12. http://www.doc.gold.ac.uk/~ffl/MSC101/Vision/ShapeParts.html

  13. http://www.pigeon.psy.tufts.edu/avc/print/kirkpatrick/kirkpatrick_figprint.htmhttp://www.pigeon.psy.tufts.edu/avc/print/kirkpatrick/kirkpatrick_figprint.htm

  14. Geoni- recunoasterea obiectelor naturale si procesarea descendenta • Formele trasaturilor obiectelor naturale sunt mai complexe decat liniile si curbele: seamana cu formele geometrice complexe • Acestea sunt capabile de recombinare pentru a reproduce forma oricarui obiect recognoscibil • Trasaturile obiectelor sunt reconstruite din trasaturi mai primitive (linii si curbe)- singurele informatii disponibile sistemului in primele stadii ale recunoasterii • Geoni= ioni geometrici; • Arce, cilindrii, conuri paralelipipede si prisme

  15. Geoni • 36 geoni pot fi combinati in functie de un numar redus de relatii spatiale; • Suficient pentru a descrie formele tuturor obiectelor pe care le pot recunoaste • 2 sau 3 geoni pot crea 50.000 obiecte

  16. 1 Procesarea top-down2 Procesarea bottom up • http://www.psypress.com/groome/figures.asp • http://www.psypress.com/groome/figures.asp

  17. 1 Procesarea top-down • Conexiuni descendente de feedback- conexiuni care merg de la niveluri superioare catre cele inferioare; • Este orientata de cunostiinte, experienta, atentie si asteptarile persoanei

  18. 1 Procesarea bottom up • Este condusa de informatiile care intra in sistem- datele senzoriale brute

  19. Agnozia- incapacitatea recunoasterii • Agnozie asociativa (copiaza fara sa stie ce e) • Agnozie aperceptiva (nu poate copia si recunoaste)

  20. http://www.michaelbach.de/ot/mot_adapt/index.html • http://www.michaelbach.de/ot/mot_spoke-illusion/index.html • iluzia miscarii • http://www.michaelbach.de/ot/mot_eyeJitter/index.html • se misca in centru

  21. http://www.psy.ritsumei.ac.jp/~akitaoka/illnews2e.html • http://psych-s1.psy.vanderbilt.edu/faculty/blaker/BM/BioMot.html • compunerea miscarilor din puncte • http://www.michaelbach.de/ot/mot_feet_lin/index.html • iluzia de pasire

  22. http://www.britannica.com/eb/art-55240/A-demonstration-of-the-optical-phenomenon-of-persistence-of-vision?articleTypeId=1http://www.britannica.com/eb/art-55240/A-demonstration-of-the-optical-phenomenon-of-persistence-of-vision?articleTypeId=1 • miscare si animatie • http://www.britannica.com/eb/article-9007644/animation#215381.toc

  23. http://www.coolopticalillusions.com/ • tare te totttttt • http://www.coolopticalillusions.com/optical_illusions_pictures_3/staring_woman_and_arch.htm • http://www.sandlotscience.com/Guided_Tours/Tour2/Tour2_4.htm

  24. http://dragon.uml.edu/psych/illusion.html • http://dragon.uml.edu/psych/commfate.html • iluzii de miscare marfa • http://dragon.uml.edu/psych/organize.html • organizarea perceptiei • http://dragon.uml.edu/psych/bspot.html • pata oarba

  25. http://dragon.uml.edu/psych/bspot.htmlpata oarba

  26. http://dragon.uml.edu/psych/overthemountain.html • http://www.mcescher.com/ • picturi super marfa • http://www.artlex.com/ArtLex/d/drawing.html • pictura • http://scienceblogs.com/cognitivedaily/2006/10/very_cool_visual_illusion_conf.php • flash and beep

  27. http://animation.about.com/gi/dynamic/offsite.htm?zi=1/XJ&sdn=animation&cdn=compute&tm=5&gps=113_433_1020_615&f=10&su=p284.8.150.ip_&tt=2&bt=0&bts=0&zu=http%3A//www.lordoftherings.net/http://animation.about.com/gi/dynamic/offsite.htm?zi=1/XJ&sdn=animation&cdn=compute&tm=5&gps=113_433_1020_615&f=10&su=p284.8.150.ip_&tt=2&bt=0&bts=0&zu=http%3A//www.lordoftherings.net/ • test de gasire a demonului pereche • http://psych.la.psu.edu/clip/Perception.htm • perceptia misacarii • http://www.graphics.cornell.edu/~jaf/projects/pn/space.html • http://bctv.butte.edu/telcom/tel40text/1camerascomp.html • principiile camerei • http://web.mit.edu/persci/demos/Motion&Form/master.html • miscarea formei • http://web.mit.edu/persci/demos/Motion&Form/master.html • supper tarrrre

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