An extension to Murdock's Theory of Distributed Associative Memory, based on associative chaining between items, is presented. The extended theory is applied to several serial order phenomena, including serial list learning, delayed recall effects, partial report effects, and buildup and release from proactive interference. (TJH)

Short-term memory for single-syllable words is negatively related to the number of semantic categories from which the words are drawn. Test results are inconsistent with any theory postulating a separate short-term memory that takes no account of semantic factors. (CHK)