Item memory and source memory were assessed in a task that simulated a social conversation. Participants generated answers to questions or read statements presented by one of three sources (faces on a computer screen). Positive generation effects were observed for item memory. That is, participants remembered topics of conversation better if they were asked questions about the topics than if they simply read statements about topics. However, a negative generation effect occurred for source memory. That is, remembering the source of some information was disrupted if participants were required to answer questions pertaining to that information. These findings support the notion that item and source memory are mediated, as least in part, by different processes during encoding.When one is engaged in conversation-say, at a social gathering or a business meeting-a variety of memory processes are operating. These processes facilitate the encoding ofnew information and the retrieval ofrelevant information from memory. At the same time, processing of source information can occur and can facilitate memory for such things as the individuals with whom one was conversing, the location of the conversation, and the time at which it occurred. What cognitive constraints limit our ability to encode and recollect these various aspects of memory? In particular, what encoding factors determine the degree to which one later recollects information about the content ofa conversation, as opposed to information about the context in which a conversation took place?Cognitive studies have revealed important contrasts between content memory and source memory. Many of these studies have distinguished memory for item information from memory for the contextual environment surrounding the learning episode (for a review, see Johnson, Hashtroudi, & Lindsay, 1993). Conceptually, what distinguishes item memory from source memory is that item memory is less dependent on contextual information, whereas source memory depends critically on the acquisition ofinformation within a spatiotemporal context. That is, source memory depends on autobiographical memory for the episode in which some information was learned. This distinction between item memory and source memory is exemplified in a variety ofdichotomies, such as semantic versus episodic memory