أرسل هذا في رسالة قصيرة: Sustained attention performance during sleep deprivation associates with instability in behavior and physiologic measures at baseline

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