Forward to the Past
Our daily experience shows that the CNS is a highly efficient machine to predict the effect of actions into the future; are we so efficient also in reconstructing the past of an action? Previous studies demonstrated we are more effective in extrapolating the final position of a stimulus moving accor...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2012-06-01
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| Series: | Frontiers in Human Neuroscience |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fnhum.2012.00174/full |
| _version_ | 1818972572149088256 |
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| author | Alessandro eCarlini Alessandro eCarlini Alessandro eCarlini Rossana eActis-Grosso Natale eStucchi Thierry ePozzo Thierry ePozzo Thierry ePozzo Thierry ePozzo |
| author_facet | Alessandro eCarlini Alessandro eCarlini Alessandro eCarlini Rossana eActis-Grosso Natale eStucchi Thierry ePozzo Thierry ePozzo Thierry ePozzo Thierry ePozzo |
| author_sort | Alessandro eCarlini |
| collection | DOAJ |
| description | Our daily experience shows that the CNS is a highly efficient machine to predict the effect of actions into the future; are we so efficient also in reconstructing the past of an action? Previous studies demonstrated we are more effective in extrapolating the final position of a stimulus moving according to biological kinematic laws. Here we address the complementary question: are we more effective in extrapolating the starting position (SP) of a motion following a biological velocity profile?We presented a dot moving upward and corresponding to vertical arm movements that were masked in the first part of the trajectory. The stimulus could either move according to biological or non-biological kinematic laws of motion. Results show a better efficacy in reconstructing the SP of a natural motion: participants demonstrate to reconstruct coherently only the SP of the biological condition. When the motion violates the biological kinematic law, responses are scattered and show a tendency towards larger errors. Instead, in a control experiment where the full motions were displayed, no-difference between biological and non-biological motions is found.Results are discussed in light of potential mechanisms involved in visual inference. We propose that as soon as the target appears the cortical motor area would generate an internal representation of reaching movement. When the visual input and the stored kinematic template match, the SP is traced back on the basis of this memory template, making more effective the SP reconstruction. |
| first_indexed | 2024-12-20T15:10:24Z |
| format | Article |
| id | doaj.art-2331d62c026a4830829b9cf302f2fa9f |
| institution | Directory Open Access Journal |
| issn | 1662-5161 |
| language | English |
| last_indexed | 2024-12-20T15:10:24Z |
| publishDate | 2012-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Human Neuroscience |
| spelling | doaj.art-2331d62c026a4830829b9cf302f2fa9f2022-12-21T19:36:21ZengFrontiers Media S.A.Frontiers in Human Neuroscience1662-51612012-06-01610.3389/fnhum.2012.0017425922Forward to the PastAlessandro eCarlini0Alessandro eCarlini1Alessandro eCarlini2Rossana eActis-Grosso3Natale eStucchi4Thierry ePozzo5Thierry ePozzo6Thierry ePozzo7Thierry ePozzo8INSERM lab U1093Universitè de BourgogneUniversità degli Studi di Milano-BicoccaUniversità degli Studi di Milano-BicoccaUniversità degli Studi di Milano-BicoccaUniversitè de BourgogneINSERM lab U1093Italian Institute of TechnologyInstitut Universitaire de France, Université de Bourgogne, U1093Our daily experience shows that the CNS is a highly efficient machine to predict the effect of actions into the future; are we so efficient also in reconstructing the past of an action? Previous studies demonstrated we are more effective in extrapolating the final position of a stimulus moving according to biological kinematic laws. Here we address the complementary question: are we more effective in extrapolating the starting position (SP) of a motion following a biological velocity profile?We presented a dot moving upward and corresponding to vertical arm movements that were masked in the first part of the trajectory. The stimulus could either move according to biological or non-biological kinematic laws of motion. Results show a better efficacy in reconstructing the SP of a natural motion: participants demonstrate to reconstruct coherently only the SP of the biological condition. When the motion violates the biological kinematic law, responses are scattered and show a tendency towards larger errors. Instead, in a control experiment where the full motions were displayed, no-difference between biological and non-biological motions is found.Results are discussed in light of potential mechanisms involved in visual inference. We propose that as soon as the target appears the cortical motor area would generate an internal representation of reaching movement. When the visual input and the stored kinematic template match, the SP is traced back on the basis of this memory template, making more effective the SP reconstruction.http://journal.frontiersin.org/Journal/10.3389/fnhum.2012.00174/fullVisual Perceptionkinematicsinternal modelsMotion Inference |
| spellingShingle | Alessandro eCarlini Alessandro eCarlini Alessandro eCarlini Rossana eActis-Grosso Natale eStucchi Thierry ePozzo Thierry ePozzo Thierry ePozzo Thierry ePozzo Forward to the Past Frontiers in Human Neuroscience Visual Perception kinematics internal models Motion Inference |
| title | Forward to the Past |
| title_full | Forward to the Past |
| title_fullStr | Forward to the Past |
| title_full_unstemmed | Forward to the Past |
| title_short | Forward to the Past |
| title_sort | forward to the past |
| topic | Visual Perception kinematics internal models Motion Inference |
| url | http://journal.frontiersin.org/Journal/10.3389/fnhum.2012.00174/full |
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