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Fig. 10 | Attention, Perception, & Psychophysics

Fig. 10

From: Feature integration theory in non-humans: Spotlight on the archerfish

Fig. 10

Difficulty of a task. (A) Scatter plot of the mean target-selection rate vs. the mean reaction-time slope. Marker shapes represent the task (diamond, circle, square, and star shapes represent color, size, orientation, and motion tasks, respectively) and the color of the markers indicates the number of distractors (blue, green, orange, and red for three, six, nine, and 12 distractors, respectively). Black shapes represent the mean of each group. The dashed ellipses are the two-dimensional standard deviational ellipse of each task (σ = 1) representing the spread of the group. The blue line was obtained via linear regression and indicates a negative correlation between the two parameters (R2 = 0.79, F1, 14 = 52.8, p < 0.0001). (B) The difficulty of a task as a function of the tasks. Each color is associated with the number of distractors. For convenience, the tasks are organized in ascending order from low to high mean task difficulty (black lines). The easiest task was color, followed by size, orientation, and finally motion (p < 0.05, permutation test)

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