It is interesting to notice that the nystagmus switches direction when the spinning stops. Is it because endolymph´s inertia is making as if the patient is rotating the other way around?
Yes, you can think of it in terms of acceleration and deceleration. The inner ear's semicircular canals sense angular/rotational accelerations when the cupula is deflected by the fluid movement. It may be simpler to think of a linear example like driving a car. When you are speeding up, you will feel your body being pushed back against the seat, but then when you put on the brakes, your body would want to move forward. So in the video, when she stops spinning, it would be a sudden deceleration of her head movement, but the fluid would want to keep moving and the cupula would be deflected the other direction as if she were spinning the other way.
In Human Engineering (Anatomy/Medicine) we have many for all the devices (flex your hand/ touch nose with tongue, talk,blink one eye) and Study of their switch or buttons is (neurology) If We r unable to perform, then we didn't find our button yet. Like some people didn't learn to blink one eye due to not finding the button for it
I think I have this. I think I developed it around age 18.....I'm 62 now. Every once in awhile people freak out when they see it and I never knew why before! Mine happens very quick I think though, not as long as the video shows. Guess I'll be checking with my eye doctor.
Depending on when yours occurs, it can be normal. This video shows a normal type of nystagmus, since she is spinning around to create this effect. If yours is not provoked by anything, you may want to discuss it with your doctor. If it occurs with changes in head position, you may benefit from vestibular physical therapy.
What does it mean when you have this even if/when you HAVEN'T been spinning...? My eyes do that weird twitching all around even though there's been zero spinning. They just do it all the time no matter what. I am so freakin' exhausted 😞 I wonder if phones are causing this phenomenon...???
There are different types of nystagmus (the eye jumping/twitching movement), which have several different causes. This video shows one of the causes that is completely normal and would be present in anyone during or after spinning around. If this is a new symptom for you and not provoked by head movement like spinning, it would be a good idea to discuss this with your doctor to see if further assessment is needed.
I think I have this. I think I developed it around age 18.....I'm 62 now. Every once in awhile people freak out when they see it and I never knew why before! Mine happens twal quick I think though, not ss long as the video shows. Guess I'll be checking with my eye doctor.
from 00:24 it is a great example of the Fast phase in the opposite direction and the slow phase in the same direction as rotation!
It is interesting to notice that the nystagmus switches direction when the spinning stops. Is it because endolymph´s inertia is making as if the patient is rotating the other way around?
I would love to know the answer to that question too?!
Yes, you can think of it in terms of acceleration and deceleration. The inner ear's semicircular canals sense angular/rotational accelerations when the cupula is deflected by the fluid movement.
It may be simpler to think of a linear example like driving a car. When you are speeding up, you will feel your body being pushed back against the seat, but then when you put on the brakes, your body would want to move forward.
So in the video, when she stops spinning, it would be a sudden deceleration of her head movement, but the fluid would want to keep moving and the cupula would be deflected the other direction as if she were spinning the other way.
@The Dizzy PT Thank you very much, very elegant example!
Neurology is just amazingly cool
In Human Engineering (Anatomy/Medicine) we have many for all the devices (flex your hand/ touch nose with tongue, talk,blink one eye) and Study of their switch or buttons is (neurology) If We r unable to perform, then we didn't find our button yet. Like some people didn't learn to blink one eye due to not finding the button for it
Hi! I sent an email a few weeks back about using this clip for a feature film - please let me know if you have received.
Best,
Ivy
I think I have this.
I think I developed it around age 18.....I'm 62 now.
Every once in awhile people freak out when they see it and I never knew why before!
Mine happens very quick I think though, not as long as the video shows.
Guess I'll be checking with my eye doctor.
Depending on when yours occurs, it can be normal. This video shows a normal type of nystagmus, since she is spinning around to create this effect. If yours is not provoked by anything, you may want to discuss it with your doctor. If it occurs with changes in head position, you may benefit from vestibular physical therapy.
What does it mean when you have this even if/when you HAVEN'T been spinning...? My eyes do that weird twitching all around even though there's been zero spinning. They just do it all the time no matter what. I am so freakin' exhausted 😞 I wonder if phones are causing this phenomenon...???
There's no evidence that I know of that support that phones can do this. On the other hand, congenital nystagmus is a known condition.
There are different types of nystagmus (the eye jumping/twitching movement), which have several different causes. This video shows one of the causes that is completely normal and would be present in anyone during or after spinning around. If this is a new symptom for you and not provoked by head movement like spinning, it would be a good idea to discuss this with your doctor to see if further assessment is needed.
I think I have this.
I think I developed it around age 18.....I'm 62 now.
Every once in awhile people freak out when they see it and I never knew why before!
Mine happens twal quick I think though, not ss long as the video shows.
Guess I'll be checking with my eye doctor.
Neurology is just amazingly cool