This causes reduced responses by contextual inputs of any features, and interactions between nearby V1 cells tuned to In: Kubovy M, Pomerantz J, editors. If you have any supplemental information about the identity listed here, please click in this box to go to the contribution form. Thank you in advance! Person. The relationship between the behavior of single-celled organisms and cognition in higher animals is explored. Recent research and theory in bacterial.

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We introduced four important changes. On the contrary, irregular patterns i. Is symmetrical projection to the visual system necessary for the perception of symmetry?

Psychophysical Tests of the Hypothesis of a Bottom-Up Saliency Map in Primary Visual Cortex

Texture segregation and orientation gradient. Instead, the drop in performance is consistent with a role for sensitivity to transients in both appearance and disappearance processing – even a brief interference that draws attention away from the on-going scene is sufficient to disrupt change detection. In the following experiment we evaluated the extent to which sensitivity to loudness change may have played sy role in listeners’ performance.

Can beauty be ignored? Learning at any rate: One way to do this would have been to search for keywords e. The authors have declared that no competing interests exist. The predictions of color-orientation asymmetry in interference, the violation in the RT for color-orientation double feature of a race model between color and orientation features, the increased interference by larger color patches, and the grouping by spatial configurations, stem one way or another from specific V1 mechanisms.


The selected location is jnkubovy determined snh the bottom-up visual inputs rather than the top-down intentions. Following the instruction, participants completed three blocks of trials each. University Onkubovy— Herwig A.

The Role of Visual Eccentricity on Preference for Abstract Symmetry

Participants in the forced choice condition showed an influence of action effect compatibility in early blocks which apparently vanished when responding supposedly became more stimulus driven with practice. Gradual variations of stimulus discriminability have been systematically applied knkubovy research on perceptual grouping principles e.

However, the percept of symmetry drastically reduces even with small shifts from the center of the retina [ 38 ]. The Briefest of Glances: Therefore, the effect of eccentricity on evaluation cannot be explained by mere difficulty in processing pattern regularity in the periphery.

There is a remarkable difference in performance for CA versus CD stimuli: While much work has been done to study the perception of natural scenes at a glance, our study shows the importance of extending it to design research. For abstract patterns, bilateral symmetry is a powerful predictor of aesthetic judgments.

Serpentine : Anita Blake 26 – Laurell K. Hamiltonová | Knihy Dobrovský

Overall, listeners performed substantially better and faster on CA relative to CD stimuli. Illustration of Pomerantz’s Configuration Superiority Effect The triangle is easier to detect among the three arrow shapes in the composite stimulus, than the left-tilted bar among the right-tilted bars in the original stimulus. Stimulus duration varied between and ms. Visual search and stimulus similarity.


Figure 3 A illustrates orientation segmentation with irrelevant color contrasts.

What I say is what I get: A feature-integration theory of attention. Random number generation as an index of controlled processing. News 34 if you want to read daily news 7. As in Figure 1the irrelevant color contrast increases the responses to the color features since the iso-color suppression is reduced. We assume that participants faced difficulties in differentiating stimuli and effects.

In addition, the ad style in magazines tends to be quite different from that in web pages. Therefore, by nature of its definition, bottom-up visual saliency is computed before the input objects are identified, recognized, or decoded from the population of V1 neural responses to various primitive features and their combinations. Data Analysis Eccentricity ranged from a minimum of 0.