The selective process in the functional visual field

A review is given of a group of experiments on performance as a function of display angle, aiming at a description of the perceptual strategies used with signals at various angular separations, which show a non-linear decrease of performance.

Abstract

CHAPTER 1 - ON THE PRINCIPLE OF SELECTION A. GENERAL CONSIDERATIONS 1 1. Introduction 1 2. The classical approach to attention 6 3. Set and attention 10 4. The measurement of attention 12 B. THE STRUCTURE OF THE SELECTIVE PROCESS 16 5. The filtertheory of Broadbent 16 6. On the measurement of the selective process 19 7. The selective process in the functional visual field 32 CHAPTER 2 - PERFORMANCE AS A FUNCTION OF DISPLAY ANGLE 1. Review of some literature 36 2. Some introductory experiments 40 3. The effect of eye and head movements on performance 48 CHAPTER 3 - THE PHENOMENON OF GROUPING 1. Successive responses to simultaneous signals 69 2. The selective process in the eyefield 80 3. Peripheral viewing of signals and perception during eye movements 84 4. The role of grouping in the psychological refractory period 94 5. Summary of the chapter 106 CHAPTER 4 - THE SELECTIVE PROCESS IN SOME VISUAL TASKS 1. Introduction 108 2. Selective strategy in a visual search task 109 3. Display angle and performance in a vigilance task 122 4. Display angle and performance in a memorizing task 133 CHAPTER 5 - THREE MINOR EXPERIMENTS ON VISUAL SELECTION 1. Distance estimation as a function of display angle 150 2. Pointer adjustment as a function of display angle 154 3. Digits comparison as a function'of display angle 157 CHAPTER 6 - RETROSPECT AND PROSPECT 1. Summary of the conclusions 164 2. Major implications of the conclusions 167 SUMMARY SAMENVATTING REFERENCES