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quote:Originally posted by sterling_glennSometimes when I am confronted with a sudden change in the brightness of light (for example, when I step outside a building on a sunny day) I sneeze. Sometimes I will achieve as many as three strong sneezes but this ceases as soon as my eyes adjust to the increased light. I know a few other people who have told me that they frequently have this experience, including my mother (genetic?). There seem to be many more persons in my circle of acquaintances who have never had this experience and, when I speak of it, they think me to be really quite mad. Is there a scientific explanation for this or, as some suspect, I am actually mad.
quote:...and pupil closure (constriction or meiosis)
quote:Originally posted by kgw51gmcOK Guys--I am not trying to be immature or gross...but I have to find out something. I am 24 and a proud lifetime sneezer. Sunlight, lamp light, head lights..anything light can be used to instigate a sneeze or more often to draw out that sneeze that is just starting. I have been made fun of for stopping whatever I am doing and looking at light. In my peer group I think it is more like 5% of people who have PSR. NOW--My question is about my OTHER cause of sneezes that I have had as far as I can remmeber. This is no joke---so let's think about it: If I have "adult thoughts" or "sexually explicit thoughts" it makes me sneeze. This is not a constant thing (not every 10 minutes), but it happens I would say 10-12 times a week depending on where I am and what my GF is doing. My girlfriend thinks it is funny when I am lying in bed in the dark and she bumps into me a certain way---ACHOO!. It is like I have been caught!! Sometimes if I am in bed at night and have a sneeze coming on and she is in the way of the lamp all I have to do is touch her in some way that is arousing to me and ACHOOO!! For you scientists out there--there is no link with my PSR (perverted sneeze reflex haha) and physical arousal. No erection/heavy breathing anything at ALL...just the thought of something sexual. If I see something sexual like a Victoria's Secret photo on a billboard sometimes I'll sneeze and get smacked by my gf for sneezing. Please help and ask around if this is common. As far as I know, I am the only one, but one fo these posts suggested "too much stimulus in the nerves in the front your head getting signals crossed." so it may be that somehow. ANyone have any ideas??
quote:Originally posted by martinHOver the last three years there have been several threads on the Naked Scientists forum about photic sneezing. I mentioned in one of these intial discussions that some European “sufferers" had pooled what we could find about PSR on Photic sneezing resources http://www.photic-sneezing.fr.st/. The idea of a link between photic sneezing and other stimuli producing sneezing has often been suggested by people writing to the site, and since it’s been up – about four years – I have had five or six people telling of sneezing just from having sexual thoughts and asking if it is connected to photic sneezing. Some of them claim to be photic sneezers but others do not. So it would seem to be rather more common than you might think.If the source of photic sneezing is stimulation of the trigeminal nerve by “leakages” from the optic nerve, this will explain why people who are photic sneezers may also sneeze when rubbing their eyes, when plucking eyebrows or when putting in contact lenses (these have often been mentioned in correspondence to the site). But one of the instigators of the site realised that his photic sneezing occurred much more often after lunch than at any other time, and that if it was a heavy lunch, a PSR reaction was even more likely. This ties in with the sneezing on a full stomach phenomenon, also noted in the literature. Could it be that what is perceived as fullness of the stomach also gets through to the trigeminal nerve. And the same might happen in the case of sexual thoughts. So we really need an anatomist to tell us where these signals are all going. Any thoughts?Martin
Hi, I've just joined this forum after searching google to see if anyone else had sneezes related to light and sexual thoughts. I experience both and I noticed this thread mentions that others have experienced the same.