6,107 research outputs found
High-order rogue waves of a long wave-short wave model
The long wave-short wave model describes the interaction between the long
wave and the short wave. Exact higher-order rational solution expressed by
determinants is calculated via the Hirota's bilinear method and the KP
hierarchy reduction. It is found that the fundamental rogue wave for the short
wave can be classified into three different patterns: bright, intermediate and
dark ones, whereas the rogue wave for the long wave is always bright type. The
higher-order rogue waves correspond to the superposition of fundamental rogue
waves. The modulation instability analysis show that the condition of the
baseband modulation instability where an unstable continuous-wave background
corresponds to perturbations with infinitesimally small frequencies, coincides
with the condition for the existence of rogue-wave solutions.Comment: 14 pages, 5 figure
Crossing the ‘Uncanny Valley’: Adaptation to Cartoon Faces Can Influence Perception of Human Faces
In this study we assessed whether there is a single face space common to both human and cartoon faces by testing whether adaptation to cartoon faces can affect perception of human faces. Participants were shown Japanese animation cartoon videos containing faces with abnormally large eyes. The use of animated videos eliminated the possibility of position-dependent retinotopic adaptation (because the faces appear at many different locations) and more closely simulated naturalistic exposure. Adaptation to cartoon faces with large eyes significantly shifted preferences for human faces toward larger eyes, consistent with a common, non-retinotopic representation for both cartoon and human faces. This supports the possibility that there are representations that are specific to faces yet common to all kinds of faces
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