The phenomenon of "idea acquisition and retention" is demonstrated experimentally and contrasted with an "individual sentence memory" point of view. Results indicate that during an acquisition phase of the experiments, Ss spontaneously integrate the information expressed by a number of non-consecutively experienced (but semantically related) sentences into wholistic, semantic ideas, where these ideas encompass more information than any acquisition sentence contained. Ss' subsequent attempts to recognize those exact sentences heard during acquisition are shown to be a function of the complete ideas acquired. Thus, Ss' are most confident of "recognizing" sentences expressing all the semantic relations characteristic of a complete idea, in spite of the fact that such sentences expressed more information than was communicated by any single sentence on the acquisition list. Ss' become less confident of having heard particular sentences as a function of the degree to which a sentence fails to exhaust all the semantic relations characteristic of a complete idea.