We analyze complexity of sleep-EEG-signals using methods based on Higuchi’s fractal dimension and of the signal and a new symbolic method applied to signal’s derivative. We demonstrate that these methods may be helpful in diagnosis of sleep disorders the fractal dimension method differentiate between sleep stages while the symbolic method may differentiate between healthy subject and insomniacs...

A non-additive version of the thermodynamic formalism is developed. This allows us to obtain lower and upper bounds for the dimension of a broad class of Cantor-like sets. These are constructed with a decreasing sequence of closed sets that may satisfy no asymptotic behavior. Moreover, they are coded by an arbitrary symbolic dynamics, and the geometry of the construction may depend on all the s...

Sound symbolism– non-arbitrary correspondences between the sound of a word and its meaning– exists cross-linguistically and facilitates listeners’ ability to infer the meaning of foreign words. However, the specificity of these mappings remains unclear. The present study investigated whether sound symbolic properties correspond only to a specific meaning domain or to other semantic dimensions a...