Table 1 Mean MGAs and perceptual estimates (in mm) for the near and far objects in experiments 1–2. standard deviations are in brackets.

From: A double dissociation between action and perception in bimanual grasping: evidence from the Ponzo and the Wundt–Jastrow illusions

Object location

 

Near

Far

Overall

Object size

 

Short

Long

Short

Long

Short

Long

Experiment 1

Grasping

253 (12)

260 (12)

264 (24)

268 (18)

258 (17)

264 (14)

 

Grasping control

260 (9)

267 (10)

266 (18)

277 (19)

263 (13)

272 (14)

 

Manuel estimations

215 (14)

205 (15)

220 (20)

199 (16)

218 (16)

202 (14)

Experiment 2

Grasping

219 (9)

224 (10)

236 (14)

239 (16)

228 (11)

231 (11)

 

Manuel estimations

186 (24)

171 (19)

187 (23)

173 (25)

186 (23)

172 (21)