Dataset Open Access

Memory influences haptic perception of softness

Anna Metzger; Knut Drewing

The memory of an object’s property (e.g. its typical colour) can affect its visual perception. We investigated whether memoryof the softness of every-day objects influences their haptic perception. We produced bipartite silicone rubber stimuli: one half of the stimuli was covered with a layer of an object (sponge, wood, tennis ball, foam ball); the other half was uncovered silicone. Participants were not aware of the partition. They first used their bare finger to stroke laterally over the covering layer to recognize the well-known object and then indented the other half of the stimulus with a probe to compare its softness to that of an uncovered silicone stimulus. Across four experiments with different methods we showed that silicon stimuli covered with a layer of rather hard objects (tennis ball and wood) were perceived harder than the same silicon stimuli when being covered with a layer of rather soft objects (sponge and foam ball), indicating that haptic perception of softness is affected by memory.


There are zip files for every experiment (1-4), which contain all data relative to the publication. Variables of all experiments are described in the file VARIABLE_CODES.txt.

Files (70.9 kB)
Name Size
16.4 kB Download
22.7 kB Download
4.3 kB Download
24.7 kB Download
2.9 kB Download
All versions This version
Views 5757
Downloads 2121
Data volume 263.3 kB263.3 kB
Unique views 5454
Unique downloads 88


Cite as