question: Why do people get carsick when they sit in the backseat but are ok when they sit in the front?
comment: In the front seat, you have the windscreen in front of you, which gives you an unobstructed view of the horizon, so even when you are focusing on something else, your peripheral vision still gives you feedback on your motion. In the rear seat, that portion of your vision is taken up by the headrest in front of you.
passages: In these cases, motion is sensed by the vestibular system and hence the motion is felt, but no motion or little motion is detected by the visual system, as in terrestrial motion sickness.
  
  Section::::Types.:Motion is felt but not seen.:Carsickness.
   Some backseat drivers exhibit this type of behavior simply because they feel the driver is taking risks they would not normally take, while others may have other reasons to be nervous, such as when the driver has a poor driving record. However, the practice is dangerous and instead more likely to cause crashes, according to the Daily Mail, citing a 'Driver Distraction' study by Esure. A survey of 2,000 British drivers in early 2018 found that 70% motorists found backseat driving an annoying habit and that life partners were those most likely to interfere. Although only 21% of motorists admitted to backseat driving, half said they have been in arguments due to interfering comments, and five percent admitted to accidentally jumping a red light during an argument with a backseat driver.
   A typical medical consequence of rear-ends, even in collisions at moderate speed, is whiplash. In more severe cases, permanent injuries such as herniation may occur. The rearmost passengers in minivans, benefiting little from the short rear crumple zone, are more likely to be injured or killed.
   Section::::Car accidents.
  
  Children under the age of 3 were 43% are less likely to be injured in a car crash if their car seat was placed in the center of the car. The center position is the safest but the least used position.
  
  Section::::Hyperthermia and hypothermia.
  
  Forgetting that an infant or toddler is in the car and leaving them where they are exposed to high temperatures can result in death.
   A specific form of terrestrial motion sickness, being carsick is quite common and evidenced by disorientation while reading a map, a book, or a small screen during travel. Carsickness results from the sensory conflict arising in the brain from differing sensory inputs. Motion sickness is caused by a conflict between signals arriving in the brain from the inner ear, which forms the base of the vestibular system, the sensory apparatus that deals with movement and balance, and which detects motion mechanically. If someone is looking at a stationary object within a vehicle, such as a magazine, their eyes will inform their brain that what they are viewing is not moving. Their inner ears, however, will contradict this by sensing the motion of the vehicle. Varying theories exist as to cause. The sensory conflict theory notes that the eyes view motion while riding in the moving vehicle while other body sensors sense stillness, creating conflict between the eyes and inner ear. Another suggests the eyes mostly see the interior of the car which is motionless while the vestibular system of the inner ear senses motion as the vehicle goes around corners or over hills and even small bumps. Therefore, the effect is worse when looking down but may be lessened by looking outside of the vehicle.
   In Mighty Morphin Power Rangers season 3 episode, Master Vile and the Metallic Armor, showed Rito being a backseat driver. He asks Master Vile "Are We There yet?" and annoyed him. Rito gets yelled at by him for the whining and not letting him work in peace. Master Vile threaten to turn the Space Skull around and send him back to Rita and Zedd if he doesn't behave himself.
   A couple of episodes in Power Rangers Zeo shows example of backseat drivers with Rita Repulsa and Goldar in the motorhome base they share with Lord Zedd, Finster, and Rito. On their way back to the palace, Rita's constant demanding lands the base a flat tire, which she and Zedd blame each other. After getting the tire fixed and back driving, Goldar shows up with the map that Zedd needs and unintentionally proceeds to be another backseat driver by overly trying to help them with the map that lands the motorhome base with yet another flat tire. Surely, Rita and Zedd blames him for the mess. Another example of a backseat driver is Rito whose constant asking of "Are We There Yet?", irritated both Zedd and Rita to the point they threaten to kick him out of the motorhome and make him walk the rest of the way to the palace.
   Research suggests that this is the body's natural way of adjusting to these systems. The bodies of experienced pilots have adapted to different types of motion experienced during actual flight conditions. When placed into a flight simulator, visual and other stimuli cause their bodies to expect the same motions associated with actual flight conditions. But their bodies instead experience the imperfect motion of the simulator, resulting in sickness.
   Air sickness is a kind of terrestrial motion sickness induced by certain sensations of air travel. It is a specific form of motion sickness and is considered a normal response in healthy individuals. It is essentially the same as carsickness but occurs in an airplane. An airplane may bank and tilt sharply, and unless passengers are sitting by a window, they are likely to see only the stationary interior of the plane due to the small window sizes and during flights at night. Another factor is that while in flight, the view out of windows may be blocked by clouds, preventing passengers from seeing the moving ground or passing clouds.
   Out of position (crash testing)
  
  Out of position (OOP), in crash testing and car accident medical literature, indicates a passenger position which is not the normal upright and forward-facing position. For example, a common case observed in crashes is the position of an occupant when reaching for the car radio, or panic braking in unbelted passengers. The concept is of interest because small changes in a passenger's position can have profound effects on the actual kinematic response, especially in rear impacts, as shown both in practical testing and theoretical models.
  
  Section::::Risk of injury.
   Going one step further, however, the Court held that even if the historical perspective was not enough, a "balancing of the relative interests weigh decidedly in favor of allowing searches of passenger's belongings" because of the reduced expectation of privacy in and the mobility of automobiles. Also, passengers in cars are more likely engaged in a common enterprise with the driver and "have the same interest in concealing the fruits or the evidence of their wrongdoing." Also, their proximity enables them "to hide contraband in [each other's] belongings as readily as in other containers in the car ... perhaps even surreptitiously, without the passenger's knowledge or permission." While these factors will not always be present, "the balancing of interests must be conducted with an eye to the generality of cases." Thus, specific probable cause to the container was not required.
   A specific type of motion sickness with similar symptoms but a possibly different etiology is space adaptation syndrome (sometimes referred to as space motion sickness).
  
  "Nausea" in Greek means seasickness ("naus" means ship).
  
  Section::::Cause.
  
  There are various theories that attempt to explain the cause of the condition. 
  
  Section::::Cause.:Sensory conflict theory.
   The film received mixed reviews. Critics praised Wesley Snipes and Bruce Payne's performances, but panned the script. Rotten Tomatoes gives it a 24% rating based on 25 reviews, with an average score of 4.14/10. Audiences polled by CinemaScore gave the film an average grade of "B" on an A+ to F scale.
   The earlier episodes of The Simpsons shows examples of backseat drivers in the form of Bart and Lisa annoying Homer to no end with their asking of "Are We There Yet?", causing him to snap at them. One time in season 2's Oh Brother, Where Art Thou while driving to Detroit to visit Herb Powell, Marge actually lost her patience with Bart and Lisa being backseat drivers. She snapped at the two for misbehaving themselves in the car and makes her threat clear that she will have Homer turn the car around and take them home at once if they don't behave themselves. Under threat of being returned home and not being able to see Herb, Bart and Lisa behave themselves. When he complained about not meeting Herb, Marge reassures Homer that they will see him. She only threatened Bart and Lisa to return home because it was the only way the two will behave during the drive.
   How It Feels to Be Run Over
  
  Section::::Plot summary.
  
  A coach is coming, and moves out of the frame at one side of the field of view. Soon after, an approaching car veers off course and moves straight to the viewer (the camera). As it approaches, the occupants wave frantically, hoping to stave off the impending collision. At the moment the car fills the entire frame the film cuts to title cards that bear the text "Oh, mother "will" be pleased".
  
  Section::::Cast.
  
  BULLET::::- Cecil Hepworth as Driver
  
  BULLET::::- May Clark as Passenger
  
  BULLET::::- Several actors as passengers
  
  Section::::Missing Intertitle.
   Simulator sickness
  
  Simulator sickness is a subset of motion sickness that is typically experienced by pilots who undergo training for extended periods of time in flight simulators. Due to the spatial limitations imposed on these simulators, perceived discrepancies between the motion of the simulator and that of the vehicle can occur and lead to simulator sickness.
  
  It is similar to motion sickness in many ways, but occurs in simulated environments and can be induced without actual motion. Symptoms of simulator sickness include discomfort, apathy, drowsiness, disorientation, fatigue, vomiting, and many more.
   According to sensory conflict theory, the cause of terrestrial motion sickness is the opposite of the cause of space motion sickness. The former occurs when one perceives visually that one's surroundings are relatively immobile while the vestibular system reports that one's body is in motion relative to its surroundings. The latter can occur when the visual system perceives that one's surroundings are in motion while the vestibular system reports relative bodily immobility (as in zero gravity.)
  
  Section::::Cause.:Neural mismatch.
   Very young children can perish from heat or cold if left unattended in a parked car, whether deliberately or through absent-mindedness. In 2004, the U.S. NHTSA estimated 25 fatalities per year among children left in hot cars.
  
  Section::::Issues for particular demographic groups.:Teenage drivers.
   The Reconstruction period and its subsequent end led to a discussion among both Blacks and Whites in the South how to interpret "equal rights" and the new Reconstruction Amendments. J. P. Weaver, a Black preacher, had advised Blacks to accept separate accommodations if they are "first-class". "But if there is no such accommodation set apart for you, and you are crowded upon by base and reckless beings, depriving you of all that tends to your happiness ... excuse yourself for being colored, and walk in another car and cabin".
   A variation of the sensory conflict theory is known as neural mismatch, implying a mismatch occurring between ongoing sensory experience and long-term memory rather than between components of the vestibular and visual systems. This theory emphasizes "the limbic system in the integration of sensory information and long-term memory, in the expression of the symptoms of motion sickness, and the impact of anti-motion-sickness drugs and stress hormones on limbic system function. The limbic system may be the neural mismatch center of the brain."
  
  Section::::Cause.:Defense against perception of poisoning.
   BULLET::::- In a 1998 episode of "Millennium", "The Pest House", Frank Black chases a doctor from a mental hospital after one of its patients escapes into the back of her car and tries to kill her. When she pulls over at a gas station, the attendant saves her by taking her inside.
  
  BULLET::::- The story is featured in a 1998 episode of the television show "" under the title "Bright Lights".
   Motion sickness occurs in connection with travel or movement when an incongruity comes about between visually perceived movement and the vestibular system's sense of bodily movement. Most kinds are considered "terrestrial" motion sickness, such as being carsick, airsick, seasick, or sick from reality simulation. Symptoms include dizziness, fatigue, vertigo, depressed appetite, nonspecific malaise, gastrointestinal discomfort, (most commonly) nausea, and nausea-caused vomiting (see Sopite syndrome). If the cause of the nausea is not resolved, the sufferer will usually vomit, but vomiting may not relieve the feeling of weakness and nausea, which means the person might continue to vomit until the underlying cause of the nausea is resolved.
   Whenever we are driving, subject matter on the left side of the road is the domain of the driver, and the passenger has first dibs on everything on the right side.
   BULLET::::- Choosing a window seat with a view of the ground or of lower clouds, such that motion can be detected. This will not work if the plane is flown in the clouds for a long duration.
  
  BULLET::::- Choosing seats with the smoothest ride in regards to pitch (the seats over the wings in an airplane). This may not be sufficient for sensitive individuals who need to see ground movement.
  
  BULLET::::- Sitting facing forward while focusing on distant objects rather than trying to read or look at something inside the airplane.
   BULLET::::- A 2003 episode of the detective series "Jonathan Creek", "The Coonskin Cap", begins with a version of this legend, except that instead of a killer inside the car, the pursuing driver is trying to alert the woman that there is a body tied to the back of her car.
  
  BULLET::::- The 2003 Tamil film from India, "Whistle", begins with this scenario.
  