The perception of collative properties in visual stimuli

Two experiments were conducted to determine how quickly subjects respond to collative properties (e. g., Complexity, Uncertainty) of visual stimuli. In Experiment 1 subjects were presented with reproductions of paintings and artificial patterns which varied in collative properties (e. g., Uncertainty, Redundancy). Subjects were able to discriminate these properties on related verbal scales after only a single glance (50 msec) as well as after multiple glances (500 and 5000 msec). In Experiment 2 subjects were presented with pairs of paintings and patterns differing along collative dimensions (e. g., High versus Low Uncertainty) in an exploratory choice paradigm. The results show that for exploratory choice subjects were particularly sensitive to unity or order after only a single glance (50 msec) and to diversity or complexity after multiple glances (500 and 5 000 msec). In general, the data for the single glance condition are consistent with theories which attribute holistic processing to the initial phase of perception.