From ancient enigmas to novel paradigms: a depiction of multiple symmetric lipomatosis.

A rare case of multiple symmetric lipomatosis type 2 in a female patient was presented. New possible iconographic representations of multiple symmetric lipomatosis were considered and some metabolic aspects of this disease were reviewed.

Toward the problem of physical and semantic component of the form during eye scanning.

In subjects inspecting random polygonal shapes eye movements were recorded by means of a corneal reflection technique and computer processed. Eye fixations were mostly located around angles. Distribution of fixations over different angles was unhomogenous.

Acoustic stimulus threshold related to EEG alpha and non-alpha epochs.

In humans sitting in the dark with their eyes closed the presence of EEG alpha and non-alpha epochs was registered automatically and the threshold detection of weak acoustic stimuli and reaction time of responses were measured according to the principles of the von Békésy audiometer under both conditions. The threshold was higher during alpha epochs in comparison with non-alpha ones. The reaction time of responses under both conditions was equal.

Eye fixation duration during random texture discrimination.

Eye fixation duration during discrimination of pairs of simultaneously presented computer generated random textures differing in 'grain' has been analyzed. Of the shortest duration are fixation periods preceded and followed by local saccades over the same texture and those preceded by local saccade and followed by crossing saccade shifting the eye to the other texture. The longest were fixation periods preceded and followed by crossing saccades.

Visual stimulus threshold related to EEG alpha and non-alpha epochs.

In humans sitting in darkness with open eyes the presence of EEG alpha and non-alpha epochs was detected automatically and the threshold of detection of a dim visual stimulus was measured under both conditions. No differences in threshold were found. However, the reaction times for stimulus detection during alpha epochs were significantly longer than during non-alpha ones.