Doctor Pooka


Long day on the road tomorrow to see my neurologist.

I am nervous to hear what the doctor has to say. I am also nervous because I have seizures and bad headaches when I am in a moving car.

Thankfully, Pooka kitten is here demanding that I stop fretting and focus my attention on more important things: like keeping her entertained!

1 thought on “Doctor Pooka

  1. In a previous reply I mentioned the effects of certain types of lighting on those prone to epilepsy, due to flicker effects. These effects are so well known that here in the UK things like strobe lighting are strictly controlled or even banned, and on television, if programs or news reports contain flash photography or other flashing lights then warnings are given before the broadcast. These flicker effects are not limited to electric lights, but occur throughout nature. I will give some examples and possible solutions below, folk may find other triggers and solutions specific to their own condition.
    Triggers and possible solutions:-
    1) Dappled light, as found under trees: The primary colours of vision are red, green and blue. glasses tinted to one of these colours may help reduce the trigger effect of some shades of dappled light.
    2) Sparkle effects as found with light reflecting off water (puddles, lakes and sea, early morning dew or after rain), or other things: Reflected light can easily be reduced with polaroid sun glasses.
    3) In a car anything going past the side windows (buildings, hedges and trees, telegraph poles, other vehicles and crash barriers etc.) do so at speed, and produce the dreaded flicker effect: The solution is to wear glasses that restrict peripheral vision (much like blinkers on a horse), and look straight ahead, avoid looking out of the side windows.
    Whilst I realise that I may be preaching to the converted, I hope that these notes may be of help to someone.

    On travel sickness: The one person who never gets travel sickness is the driver. Observations of coach passengers showed that the driver always leans in towards the centre of the arc of any corner. Passengers who did the same did not get travel sickness, those who leaned the other way were sick. The reason being that the combination of gravity and centrifugal force produce a non vertical force on the body, By leaning into the corner the body aligns itself with this force and the balance sensors in the ears can find their normal position in the body. Leaning out from the centre of the arc means that the combined force acts across the body and the balance sensor cannot set in their normal positions, hence motion sickness. Simply being inert as a passenger will produce the same effect as you tend to get pulled over by the centrifugal effects.
    When riding as a passenger, until things become instinctive you must remain active and ensure you lean the same the same way as the driver.

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