Nange Magro, a masters student at the London College of Fashion, has created a mind-controlled dress called the Mechapolypse gown. As bizarre as it sounds, the designer has indeed managed to create a piece of apparel that moves and morphs according to the wearer's concentration levels.
Magro has put an arduino and an EEG (electroencephalographic) chip with sensors into the gown's accompanying cap, which can measure the level of concentration on the part of the wearer. If you watch the video beginning from 1:25, you'll see that different levels of concentration correspond to different types of movement in the dress. For example, a "third level of concentration" makes the skirt change form, from a full A-line silhouette to a pencil skirt with gathering at the back.
The beginning of the video is an animated film that tells how the Mechapolypse gown is part of a larger story about a creature that is "half robot and half natural." Visit the designer's website to learn more about the Mechapolypse gown.