The prominent models of false memory are based around the influences of the semantic properties of misleading information, and the semantic associations of perceptual cues. Little research has been performed on the effects of perceptual associativeness on false memory, and even less on the combined influence of semantic and perceptual relatedness. The manipulation used in the present study sought to assess the relative degree, or pattern, of influence that each property has on false memories, and the cognitive processes that underlie these influences. An adaptation of the Deese-Roediger-McDermott paradigm was employed in which list size (6-item vs. 12-item) and type of related properties (perceptual-only vs. semantic-and-perceptual) were manipulated, and recollection was dissociated from familiarity by employing the remember/know paradigm. Significant effects of list size were found only in the semantic-and-perceptually related condition, but the pattern of these effects matches results from similar manipulations of words related only in perceptual properties. The findings support a partially adapted Source of Activation Confusion (SAC) model which incorporates the activation/monitoring framework. The findings of illusory recollection are also discussed in terms of the misattribution of spurious details and the constructive nature of episodic memories.