Comparison of sensitivity of psychophysical and electrophysiological measures of scotopic thresholds in the vicinity of the blind spot

A section of the blind spot was mapped by obtaining detection and averaged EEG threshold measurements using three stimulus light intensities. It was found that averaged EEG and detection measures of the blind spot were equally sensitive when the two highest stimulus intensities were used, although more observations of the stimulus were required with averaged EEG. Detection thresholds were superior to averaged EEG measures with the dimmest stimulus.

     

The Conditions for Creativity

ABSTRACT We must attempt to formulate those conditions which are both necessary and sufficient for creativity. These conditions, at a minimum, appear to be: (1) Motivation. This includes inherent needs, which provide the “push”, and acquired traits and attitudes, which provide the “pull”. (2) Self-limitation (or selectivity). This means proper use and the setting of proper curbs on our talents and energies; the adoption of an adequate valuing-system and the development of the kind of character that will help us meet the demands of the environment and our creative projects. (3) Receptivity (or openness). This makes it possible for us to take in new ideas, experience new feelings and attitudes, apprehend new aesthetic forms relevant to originality. (4) Competence. This involves mastery of those tools used in, and required for, the creative project. These conditions may be held to be minimal for creativity.