The role of expectancies in the size-weight illusion: a review of theoretical and empirical arguments and a new explanation.

摘要: The size-weight illusion (SWI) refers to the phenomenon that objects are objectively equal in weight but different size or volume perceived differ weight, such smaller feel heavier than larger ones. This article reviews studies trying support three viewpoints with respect role of expectancies causing SWI. first viewpoint argues for a crucial role; second admits role, yet without seeing consequences sensorimotor processes; and third denies any causal at all. A new explanation SWI is proposed can integrate arguments. distinctive feature it recognizes influence expectancies, combines this certain reactive direct behavioral perceiving differences independent experience-based normally result adaptive application forces lift handle differently sized objects. account explains why associated repeated generation inappropriate lifting (which can, however, be modified through extensive training), as well depends on continuous visual exposure cues, appears an early age, cognitively impenetrable.