Describir: Theories of perception and the concept of structure :

  ______     ___     _    _     _____    _    _      ___     __   _   
 /_   _//   / _ \\  | || | ||  |  ___|| | |  | ||   / _ \\  | || | || 
   | ||    | / \ || | || | ||  | ||__   | |/\| ||  | / \ || | '--' || 
  _| ||    | \_/ || | \\_/ ||  | ||__   |  /\  ||  | \_/ || | .--. || 
 /__//      \___//   \____//   |_____|| |_// \_||   \___//  |_|| |_|| 
 `--`       `---`     `---`    `-----`  `-`   `-`   `---`   `-`  `-`  
                                                                      
  _____   
 |  ___|| 
 | ||__   
 | ||__   
 |_____|| 
 `-----`