Investigating the reciprocity of spatial-size associations with vocal responses

The spatial-size association of response codes (SSARC) effect refers to the finding that left-hand responses are faster (and more accurate) to physically small/er as compared to physically large/r objects, whereas right-hand responses are faster (and more accurate) to large/r as compared to small/er objects (e.g., Ren, Nicholls, Ma, & Chen, 2011; Wühr & Seegelke, 2018). Hence, the SSARC effect provides evidence for the existence of associations or overlap between the cognitive representations of size and space. Until now, the SSARC effect has been studied in one direction only, that is, with size as the critical stimulus feature and location as the critical response feature. Here, we ask whether SSARC effects can also be obtained in the opposite direction, that is, with location as the critical stimulus feature and size as the critical response feature. Moreover, we seek to compare SSARC effects in both directions (size -> location vs. location -> size) in order to determine whether the associations in both directions are of similar strength or not.