View source for Brain-wave analyzer

[[Image:Doc-mindreader.jpg|thumb|250px|Doc wearing the device.]]
[[Image:Mindreadingmachine.jpg|thumb|250px|Doc answers the door with the machine on his head.]]
[[Image:Marty_wearing_brainwave_analyzer.png|thumb|250px|Marty tries on the device on his second trip to 1955.]]
[[File:Biff_1986.jpg|thumb|250px|The less antagonistic Biff, rummaging through Doc's lab equipment in 1986.]]

{{Quote|As he ''[Doc]'' paced, he caught a picture of himself in the mirror. He was forced to smile. How outrageous he looked with this conglomeration of [[vacuum tube]]s, rheostats, gauges, wirings, and antennae on his head. It was, he was inclined to admit, the most stereotypical image of the mad scientist. But no matter. If the device proved practical in the area of mind reading, it wouldn't matter what it looked like.|From ''[[Back to the Future novelization|Back to the Future]]'' by [[George Gipe]] (quote, page 114)}}

{{Quote| Without removing his headgear — it was so much trouble to hook it up — Doc Brown strode to the door and opened it. A young man of perhaps seventeen was there. His appearance caused Brown to almost clap his hands in sheer delight, for he was clad in a shirt that was illustrated with a blowup of a patent office entry. How this appealed to the heart of a frustrated and neglected and much maligned inventor can be easily imagined. / In this happy frame of mind, Doc Brown decided to continue his experiment. He turned the switch on, waited for it to warm up, pointed his finger at the young man, and said "Don't say a word." / The young man obeyed, his mouth closing before he could get his first words out. / "I'm going to tell you your name," Doc Brown said. "Think of your name." |From ''[[Back to the Future novelization|Back to the Future]]'' by [[George Gipe]] (quote, pages 114 and 115)}}

{{quote|My God. Do you know what this means? It means that this damn thing doesn't work at all!|Doc}}

The '''brain-wave analyzer''' was one of the inventions Dr. [[Emmett Brown]] created in [[1955]]. It was intended to allow him to read someone else's thoughts.

==History==
When [[Marty McFly]] arrived at his house for the first time, Doc disconnected the machine from his [[dog]] [[Copernicus]], and tested the machine on him as he arrived on his doorstep. It consisted of a helmet with a metal geodesic framework that held several cylindrical devices pointed at his head, with electrical wires that led from each of these devices to either a small helmet strapped to his dog's head, or to a suction cup that he stuck to Marty's forehead.

His first guess was that Marty had come "from a great distance.” This was true; Marty traveled 2 miles from [[Lyon Estates]] to [[Hill Valley]] and a great distance in time. His second guess that Marty was selling subscriptions to ''[[The Saturday Evening Post]]'' door-to-door. This was a common occupation, but not entirely correct, as Marty had picked up a newspaper earlier that day to check when he was. His next guess was that Marty was selling [[peanut brittle]] — as [[Howard's daughter]], a [[Girl Scouts|Girl Scout]], was doing for her [[baseball]] team in [[1985]]<ref>''[[Back to the Future novelization]]'', page 33</ref> — for the [[Boy Scouts]],<ref>''[[Back to the Future novelization]]'', page 115</ref> which was incorrect. After noticing that Marty appeared to be wearing a [[life preserver]], Doc made a wild guess that he was collecting donations for the [[Coast Guard]] Youth Auxiliary. He did not know that only a short time beforehand, when [[Stella Baines|Lorraine's mother]] guessed that he was a sailor, Marty answered that he was a member of the Coast Guard. 

When Doc discovered the brain-wave analyzer didn't work at all, he placed it on the desk and started examining it until Marty persuaded him to leave it alone and focus on the [[DeLorean time machine|time machine]].

A week later, while Doc was reading the [[Doc's letter|letter]] his [[1985]] counterpart had sent from [[1885]] via several generations of [[Western Union]], Marty tried on the brain-wave analyzer helmet as he looked at the inventions in the [[Doc's garage|lab]].

==''Back to the Future: The Ride''==
At some later date, Doc Brown and his team at the [[Institute of Future Technology]] successfully demonstrated a much smaller version of the brain-wave analyzer that was used to read one's own thoughts and display them on a LED screen. The device worked by harnessing electro-magnetic impulses created by synapse-disponses from both the cerebral-malbestare. Mind waves were transmitted at a mind obitting rate into the circuitry, thus translating thoughts into written form-in other words, reading your mind. Apparently Doc had some initial doubts that his newer version of the brain-wave analyzer would work, as the message on the display was that of Doc pleading to the device to "Work, baby, work!"<ref>[http://www.youtube.com/watch?v=jmZOww25zz0 Back to the Future the Ride Experience Part 2] at [http://www.youtube.com YouTube].</ref>

{{Noncanonstart}}
In [[1986]], during the estate sale, [[Biff Tannen]] wore Doc's original brain-wave analyzer helmet.

{{Noncanonend}}

==Behind the scenes==
*According to the [[Back to the Future novelization|novelization]], when Doc discovered the brain-wave analyzer didn't work at all, he threw it to the floor in anger:

{{Quote| "What ''are'' you selling?" Doc asked. "That's how all sales pitches start." / ''[Marty replied]'' "I'm not selling anything. Listen: I'm from the future. I came here in a time machine you invented — and now I need you to help me get back." / "Back to where?" / "Nineteen eighty-five." / "Incredible," Doc Brown breathed. "My God, do you know what this means?" / He paused dramatically, then began to remove the complicated contraption from his head. / "What does it mean?" / "It means this damned thing doesn't work at all!" he yelled, throwing the machine to the floor. It broke into several pieces, glass and plastic flying everywhere. "Six months labor for nothing! Where did I go wrong?" | (quote, page 116)}}

==Appearances==
*''[[Back to the Future]]''
*''[[Back to the Future novelization]]''
*''[[Back to the Future: The Story]]''
*''[[Back to the Future Part III]]''
*''[[Back to the Future: The Ride]]''
*''[[Back to the Future: The Animated Series]]''
**"[[Retired]]"
*''[[Back to the Future: The Card Game]]'' {{C|Background of Time Car v4}}
*''[[Back to the Future: The Game]]''
**''[[Back to the Future: The Game - Episode 1: It's About Time]]''
**''[[Back to the Future: The Game - Episode 4: Double Visions]]''
*''[[Back to the Future (IDW Publishing)]]''
**''[[Back to the Future: Biff to the Future]]''
***[[Back to the Future: Biff to the Future 5|Issue 5: "Biff to the Future Part 5"]]

==Sources==
*''[[Back to the Future novelization]]'' {{c|regarding name of invention}}

==References==
{{reflist}}
[[Category:Doc's inventions]]
[[Category:1955]]
[[Category:1986]]
[[Category:1991]]