Abstract
Our ability to perceive properties of handheld objects (e.g., heaviness, orientation, length, width, and shape) by wielding via dynamic touch is crucial for tooling and other forms of object manipulation—activities that are the basis of much human experience. Here, we investigated how muscular effort mediates perception of heaviness and length via dynamic touch. Twelve participants wielded nine occluded elongated objects of distinct moments of inertia and reported their perceptual judgments of heaviness and length. We measured the electromyography (EMG) activity of the participants’ biceps brachii, flexor carpi radialis, and flexor carpi ulnaris muscles during wielding. Distinct single-valued functions of the eigenvalues I1 and I3 of the inertial tensor, I, closely predicted perceived heaviness and perceived length of the wielded objects. Perceived heaviness showed a direct and linear relationship with EMG activity of biceps brachii, flexor carpi radialis, and flexor carpi ulnaris. However, while perceived length showed a very weak relationship with EMG activity of biceps brachii, we found no association between perceived length and EMG activity of flexor carpi radialis and flexor carpi ulnaris. Our findings indicate that muscular effort contributes directly to perception of heaviness, but likely only serves as a medium for perception of length. While the same physical variable—i.e., the moment of inertia—provides the informational support for perception of heaviness and length, distinct psychophysiological processes underlie perception of heaviness and length via dynamic touch.
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References
Amazeen EL (1999) Perceptual independence of size and weight by dynamic touch. J Exp Psychol Hum Percept Perform 25:102–119. https://doi.org/10.1037/0096-1523.25.1.102
Amazeen EL, Turvey MT (1996) Weight perception and the haptic size–weight illusion are functions of the inertia tensor. J Exp Psychol Hum Percept Perform 22:213–232
Arzamarski R, Isenhower RW, Kay BA et al (2010) Effects of intention and learning on attention to information in dynamic touch. Atten Percept Psychophys 72:721–735. https://doi.org/10.3758/APP.72.3.721
Bernstein NA (1967) The co-ordination and regulation of movements. Pergamon Press, New York
Burton G, Turvey MT (1990) Perceiving the lengths of rods that are held but not wielded. Ecol Psychol 2:295–324. https://doi.org/10.1207/s15326969eco0204_1
Burton G, Turvey MT, Solomon HY (1990) Can shape be perceived by dynamic touch? Percept Psychophys 48:477–487. https://doi.org/10.3758/BF03211592
Carello C, Turvey MT (2000) Rotational invariance and dynamic touch. In: Heller MA (ed) Touch, representation and blindness. Oxford University Press, New York, pp 27–66
Carello C, Fitzpatrick P, Domaniewicz I et al (1992) Effortful touch with minimal movement. J Exp Psychol Hum Percept Perform 18:290–302. https://doi.org/10.1037/0096-1523.18.1.290
Carello C, Fitzpatrick P, Flascher I, Turvey MT (1998) Inertial eigenvalues, rod density, and rod diameter in length perception by dynamic touch. Percept Psychophys 60:89–100. https://doi.org/10.3758/BF03211920
Carello C, Thuot S, Anderson KL, Turvey MT (1999) Perceiving the sweet spot. Perception 28:307–320. https://doi.org/10.1068/p2716
Fitzpatrick P, Carello C, Turvey MT (1994) Eigenvalues of the inertia tensor and exteroception by the “muscular sense. Neuroscience 60:551–568. https://doi.org/10.1016/0306-4522(94)90264-X
Gibson JJ (1966) The senses considered as perceptual systems. Houghton Mifflin, Boston
Gibson JJ (1979) The ecological approach to visual perception. Houghton Mifflin, Boston
Hajnal A, Fonseca S, Harrison S et al (2007a) Comparison of dynamic (effortful) touch by hand and foot. J Mot Behav 39:82–88. https://doi.org/10.3200/JMBR.39.2.82-88
Hajnal A, Fonseca S, Kinsella-Shaw JM et al (2007b) Haptic selective attention by foot and by hand. Neurosci Lett 419:5–9. https://doi.org/10.1016/j.neulet.2007.03.042
Hollerbach JM, Flash T (1982) Dynamic interactions between limb segments during planar arm movement. Biol Cybern 44:67–77. https://doi.org/10.1007/BF00353957
Mangalam M, Barton SA, Wagman JB et al (2017) Perception of the length of an object through dynamic touch is invariant across changes in the medium. Atten Percept Psychophys 79:2499–2509. https://doi.org/10.3758/s13414-017-1403-9
Mangalam M, Wagman JB, Newell KM (2018) Temperature influences perception of the length of a wielded object via effortful touch. Exp Brain Res 236:505–516. https://doi.org/10.1007/s00221-017-5148-4
Pagano CC, Cabe PA (2003) Constancy in dynamic touch: length perceived by dynamic touch is invariant over changes in media. Ecol Psychol 15:1–17. https://doi.org/10.1207/S15326969ECO1501_01
Pagano CC, Donahue KG (1999) Perceiving the lengths of rods wielded in different media. Percept Psychophys 61:1336–1344. https://doi.org/10.3758/BF03206184
Pagano CC, Turvey MT (1992) Eigenvectors of the inertia tensor and perceiving the orientation of a hand-held object by dynamic touch. Percept Psychophys 52:617–624. https://doi.org/10.3758/BF03211699
Pagano CC, Fitzpatrick P, Turvey MT (1993) Tensorial basis to the constancy of perceived object extent over variations of dynamic touch. Percept Psychophys 54:43–54. https://doi.org/10.3758/BF03206936
Palatinus Z, Carello C, Turvey MT (2011) Principles of part–whole selective perception by dynamic touch extend to the torso. J Mot Behav 43:87–93. https://doi.org/10.1080/00222895.2010.538767
Schleip R, Mechsner F, Zorn A, Klingler W (2014) The bodywide fascial network as a sensory organ for haptic perception. J Mot Behav 46:191–193. https://doi.org/10.1080/00222895.2014.880306
Shin D, Kim J, Koike Y (2009) A myokinetic arm model for estimating joint torque and stiffness from EMG signals during maintained posture. J Neurophysiol 101:387–401. https://doi.org/10.1152/jn.00584.2007
Streit M, Shockley K, Riley MA (2007a) Rotational inertia and multimodal heaviness perception. Psychon Bull Rev 14:1001–1006. https://doi.org/10.3758/BF03194135
Streit M, Shockley K, Riley MA, Morris AW (2007b) Rotational kinematics influence multimodal perception of heaviness. Psychon Bull Rev 14:363–367. https://doi.org/10.3758/BF03194078
Turvey MT, Carello C (2011) Obtaining information by dynamic (effortful) touching. Philos Trans R Soc London B Biol Sci 366:3123–3132. https://doi.org/10.1098/rstb.2011.0159
Turvey MT, Fonseca ST (2014) The medium of haptic perception: A tensegrity hypothesis. J Mot Behav 46:143–187. https://doi.org/10.1080/00222895.2013.798252
Turvey MT, Burton G, Pagano CC et al (1992) Role of the inertia tensor in perceiving object orientation by dynamic touch. J Exp Psychol Hum Percept Perform 18:714–727. https://doi.org/10.1037/0096-1523.18.3.714
Turvey MT, Burton G, Amazeen EL et al (1998) Perceiving the width and height of a hand-held object by dynamic touch. J Exp Psychol Hum Percept Perform 24:35–48. https://doi.org/10.1037/0096-1523.24.1.35
Waddell ML, Amazeen EL (2017) Evaluating the contributions of muscle activity and joint kinematics to weight perception across multiple joints. Exp Brain Res 235:2437–2448. https://doi.org/10.1007/s00221-017-4979-3
Waddell ML, Amazeen EL (2018a) Leg perception of object heaviness. Ecol Psychol. https://doi.org/10.1080/10407413.2018.1438810
Waddell ML, Amazeen EL (2018b) Lift speed moderates the effects of muscle activity on perceived heaviness. Q J Exp Psychol. https://doi.org/10.1177/1747021817739784
Waddell ML, Fine JM, Likens AD et al (2016) Perceived heaviness in the context of Newton’s Second Law: Combined effects of muscle activity and lifting kinematics. J Exp Psychol Hum Percept Perform 42:363–374. https://doi.org/10.1037/xhp0000151
Wagman JB, Hajnal A (2014) Getting off on the right (or left) foot: Perceiving by means of a rod attached to the preferred or non-preferred foot. Exp Brain Res 232:3591–3599. https://doi.org/10.1007/s00221-014-4047-1
Wagman JB, Shockley K, Riley MA, Turvey MT (2001) Attunement, calibration, and exploration in fast haptic perceptual learning. J Mot Behav 33:323–327. https://doi.org/10.1080/00222890109601917
Wagman JB, Langley MD, Higuchi T (2017) Turning perception on its head: Cephalic perception of whole and partial length of a wielded object. Exp Brain Res 235:153–167. https://doi.org/10.1007/s00221-016-4778-2
Withagen R, Michaels CF (2005) The role of feedback information for calibration and attunement in perceiving length by dynamic touch. J Exp Psychol Hum Percept Perform 31:1379–1390. https://doi.org/10.1037/0096-1523.31.6.1379
Acknowledgements
We thank Jeffrey B. Wagman for calculating rotational inertias of the experimental objects. We also thank two anonymous reviewers for their comments and insightful suggestions that generated much discussion among the present authors and helped significantly improve the final draft of this manuscript.
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MM, JDC, and TS conceived and designed research; MM and JDC performed experiments; MM analyzed data; MM and TS interpreted results of experiments; MM prepared figures; MM, JDC, and TS drafted manuscript; MM, JDC, and TS edited and revised manuscript; MM, JDC, and TS approved final version of manuscript.
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Mangalam, M., Conners, J.D. & Singh, T. Muscular effort differentially mediates perception of heaviness and length via dynamic touch. Exp Brain Res 237, 237–246 (2019). https://doi.org/10.1007/s00221-018-5421-1
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DOI: https://doi.org/10.1007/s00221-018-5421-1