Two lights occurring in a nearby location within 60-100 msec. appear as a single light in motion. Movement is not continuous but consist of a series of discrete micro movements. This process takes time. If the stimulus is presented for too short of a time or is too complex, then its trace fades before it can be transferred to working memory.
Memories also have storage capacities .
Recognize-Act Cycle of the Cognitive Processor. Variable Perceptual Processor Rate Principle. Encoding Specificity Principle. Specific encoding operations on what is perceived determine what is stored. What is stored determines what retrieval cues are effective in providing access to what is stored.