Grasping encompasses two consecutive autonomousphases – The scientific proof that we tactically constructan action trajectory shape prior to the factual executionof that exact same action trajectory shape

The explanatory model of all motoric movement actions proposes that before executing any action, we construct a perceptual image of the entire (latent) action trajectory shape. This article provides scientific evidence to support this concept within the context of grasping.Scientific Proof:To demonstrate the scientific proof, consider a coffee cup grasping test. When a giant glass shopping window is placed between the hand and the cup, participants refrain from attempting a grasp action due to the perceived obstruction. This applies to various positions of the window, indicating that we evaluate each position along the trajectory before executing a grasp.Conclusion:The scientific evidence shows that, before grasping an object, we visually perceive and evaluate each position along the action trajectory. This supports the notion that we construct a perceptual image of the complete trajectory shape before initiating a grasp action.