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@@ -37,7 +37,7 @@ To this day we still talk about that each time we have the chance to meet.
 His point referred to Gibson's work on perception, especially his paper on active touch~\cite{gibson62}.
 In this paper, Gibson describes an experiment in which participants had to recognize the shape of cookie cutters with their sense of touch only.
 There were two conditions: half of the participants could only feel the cookie-cutter pressed on their hand, the other half could explore the contours with their fingers.
-It turned out that participants of the first condition recognized $29\%$  of the shapes, and participants of the other condition $95\%$ of the shapes.
+It turned out that participants of the first condition recognized $29\%$ of the shapes, and participants of the other condition $95\%$ of the shapes.
 This experiment clearly shows that our exploration actions are as important as our sensations in our understanding of our environment.
 In my work, I made a consensual distinction between tactile and force feedback.
 I called tactile feedback sensations coming from the mechanoreceptors in the skin, and force feedback sensations coming from muscles, tendons, and joints~\cite{oakley00}.