Kinetosis

Review

The kinetosis , or badly of transport, is a disorder multi-factor having a great number of symptoms. When the living beings give up their mode of natural displacement, they are exposed to it. One speaks more readily about evil of the movement. Indeed, when an individual does not have any more control, total or partial, on its movement, it is likely to develop a kinetosis. It is the case in the car, the train, boat (the sea sickness), in horsemanship (in particular animals with a walk with the pace), in space… but also in virtual realities.

The symptoms are very varied, in the most severe cases, one observes:

  • of the vomiting, nauseas, confusion, eye trouble or of balance, headaches,…
or weaker:
  • sudation, paleness…

They occur after a duration more or less long and also after displacement, like in the case of the evil of unloading, well-known of the sailors at the time of their return to ground.

Several theories try to explain these phenomena. Today two theories clash, that of the conflicts proposing the differences between sensory information (in particular visual and vestibular) and that of the posture explaining kinetoses by the incapacity to preserve its balance.

Space and movement

Kinetoses appear in varied forms. Nevertheless, they always imply perception that the subject is made space in which it is located as well as movements which occur there. A turning by the perception of space and the movement is essential.

Theories on space cognition

  • Behaviorist
  • Ecological Cognitiviste
  • Enactive

Psychophysiology

Vestibular system

  • Otolithes
  • Channels

Visual system

Proprioception

Space reference frames

Individual variability

Vicariousness

Affordances

Variability of the situations

Conflict

Type I

  • Vision (ONE) - Hall (ONE)
  • Otolithes (ONE) - Channels (ONE)

Type II

  • Vision (ONE) - Hall (OFF)
  • Otolithes (ONE) - Channels (OFF)

Type III

  • Vision (OFF) - Hall (ONE)
  • Otolithes (OFF) - Channels (ONE)

Unusual

Expliquatives theories

According to certain theories, the sea sickness would be a reminiscence emanating of our brain reptilien. Indeed some of our ancestors nourished much gathering. At the time of this one, one of the possibilities was to fall on toxic fruits or bays, of which the effects were amongst other things to make stagger. At this time a shift of perception between the internal ear and the eyes (closed) not perceiving the movement, would start this mechanism of rejection (desire for vomitting) to evacuate accused toxic bays. (Source: army medical officer at the fine bottom of Africa, coroborer or to evacuate)

Easy ways to avoid it

  • Avoid moving as much as possible, in order to regularly reduce the movements
  • Buvez during the voyage, of a sweetened drink
  • If you are in the car, open the pane, in order to have always fresh air at your disposal
  • Toujours to eat before the voyage, but without misusing and alcohol
  • Essayer any more think of faintness
  • Evitez looking at neither by front, nor by behind, to look of with dimensions
  • not to read a book
  • Regardez permanently the object further possible at your sight, and forget what there is around.
  • you do not turn over abruptly.
  • do not hesitate to ask the driver to stop over the side of a road in order to take again your spirits
  • not to retain itself to vomit.
  • If you are seriously reached Kinetosis, prepare a plastic bag in the event of accident.

External bonds

  • On Doctissimo

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