Please enable JavaScript.
Coggle requires JavaScript to display documents.
Exploring the Canvas of Visual Perception - Coggle Diagram
Exploring the Canvas of Visual Perception
Does the size of the image and the width of the included lines impact the strength of the Watercolor Illusion?
2 Independent Variables & 1 Dependent Variable
Statistical Analysis -> ANOVA
2 main effect hypotheses & 1 interaction hypothesis
Independent Variable #1: size of stimuli (illusion)
height and width dimensions
3 or 4 levels (image sizes)
Independent Variable #2: width of lines included in stimuli (illusion)
3 or 4 levels (image sizes)
Dependent Variable: perception of illusion
what color is the ___ (top left, etc.
this will not change
)? - how confident are you that your answer is correct?
possibly measure correctness? -> correct = perceiving the illusion? (you are seeing the yellow/orange tint)
3 or 4 images that have both stimuli size and line width altered (for interaction)
there will be a "standard" stimuli size and included line width which will be based off of the standard sizes used in other studies examining the Watercolor Illusion
Hypothesis #1:
Image size will significantly impact the strength of the Watercolor Illusion, such that smaller images will decrease the effect of the illusion.
Hypothesis #2: Line width will significantly impact the strength of the Watercolor Illusion, such that thinner lines will increase the effect of the illusion.
Hypothesis #3: There will be a significant interaction between stimuli size and line width, such that larger stimuli with thinner lines will create the strongest effect of the illusion.
(Von der Heydt & Pierson, 2006)
randomization of stimuli presentation (staircase method)
Gestalt principle of proximity suggests that illusion would be strongest with thinner lines
(Pinna et al., 2001)
thin lines found to have induced stronger perception of illusion
wavy lines had stronger effect than straight lines (will not be altering line shape in this study)
thick lines separate outer colors from inside -> decreases perception of illusion
previous research has examined the effect of line width on the perception of the Watercolor Illusion, but stimuli size and its effect has seldom been studied