Texture Density Adaptation and the Perceived Numerosity and Distribution of Texture
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Transcript of Texture Density Adaptation and the Perceived Numerosity and Distribution of Texture
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TEXTURE DENSITY ADAP-TATION AND THE PER-CEIVED NUMEROSITY ANDDISTRIBUTION OF TEXTUREFrank H. Durgin (1995)
Hunjae Lee, VCC Lab2009-11-11
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INTRODUCTION When we see the complex texture - Detail is lost, abstract summary lefts,
then what is it?
What do we see when we look at scatter-dot texture?
Numerosity (number of dots) Cluster (from texture density)
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BASIC PROCEDURE (VISUAL AFTER EFFECTS) Demo
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REVIEWS AND PREDICTION Occupancy Model (Allik & Tuulmets, 1991)
Numerosity and Density (Barlow, 1978)
Prediction High density -> Affect on perceived numerosity
Not much on the cluster
Low density -> Slight distortion at numerosity Large change in cluster
R
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EXPERIMENT 1 AND RESULTS
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EXPERIMENT 2 AND RESULTS
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PROBLEM OF OCCUPANCY MODEL
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SIMULATION OF OCCUPANCY MODEL
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SIMULATION OF OCCUPANCY MODEL
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CONCLUSION AND DISCUSSION
The effects of adaptation on numerosity and clustering judgments appear to be range de-pendent and reciprocal.
In Occupancy model, R must vary with tex-ture density, (density information must be presupposed by the model)
Why does the system not use the smallest R? - for numerosity , for cluster…
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NUMERICAL COGNITION :READING NUMBERS FROM THE BRAINRoi Cohen Kadosh and Vincent Walsh 13, October (2009)
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THEY SUM UP EGER ET AL (2009) Eger et al (2009). Deciphering Cortical Num-
ber Coding from Human Brain Activity Pat-terns.
Wrap up and some opinions
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OVERVIEW OF EXPERIMENTAL DESIGN
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SUMMARY
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SUMMARY
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DISCUSSION
So, Durgin on the corner?
Oakyoon, What was the problem of this ex-periment (you mentioned at lab meeting, 21st Oct)
Any idea about number, number, magni-tude…
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THANK YOU
Again, please say something !