Tilted Forum Project Discussion Community  

Go Back   Tilted Forum Project Discussion Community > Chatter > General Discussion


 
 
LinkBack Thread Tools
Old 10-19-2005, 12:23 PM   #1 (permalink)
Crazy
 
Pupil Dilation

So I'm just a little curious. Has anyone heard of or actually experienced the ability to control the dialation of your puples consciously?
innovis is offline  
Old 10-19-2005, 01:15 PM   #2 (permalink)
is a tiger
 
Siege's Avatar
 
Location: Toronto, Ontario, Canada
I doubt that this can be done consciously.

I mean, have you ever had your pupils dilated at the optometrist? Try walking outside on a bright sunny day without sunglasses right after. It sucks. Majorly.



Actually.. don't your pupils dilate naturally at night? To let in more light?
__________________
"Your name's Geek? Do you know the origin of the term? A geek is someone who bites the heads off chickens at a circus. I would never let you suck my dick with a name like Geek"

--Kevin Smith

This part just makes my posts easier to find
Siege is offline  
Old 10-19-2005, 02:08 PM   #3 (permalink)
Junkie
 
Location: Chicago
If they're controlled by muscles, I could imagine that in theory one might be able to, but it's not something I want to go toying with. I mean, the dangers of conscious pupil manipulation are scary. Only robots should have that power, and we all know what robots are like....
__________________
"I can normally tell how intelligent a man is by how stupid he thinks I am" - Cormac McCarthy, All The Pretty Horses
JumpinJesus is offline  
Old 10-19-2005, 03:38 PM   #4 (permalink)
Junkie
 
Carno's Avatar
 
Yes, your pupils dilate based on how much light they are getting.
Carno is offline  
Old 10-19-2005, 03:50 PM   #5 (permalink)
Psycho
 
albania's Avatar
 
It depends some things aren't controlled by your brain, they are reflexes that can not be changed, I don't remember enough biology to know if dilation is a reflex. Even if it isn't it is probably controlled by the part of the brain that doesn't involve decision making or "thinking", so in short my guess would be that you probably couldn't do it. Even if one were able to, I don't really see how it would be helpful, or even why anyone would want to do it? Why do you want to know?

Last edited by albania; 10-19-2005 at 04:28 PM..
albania is offline  
Old 10-19-2005, 06:34 PM   #6 (permalink)
MSD
The sky calls to us ...
 
MSD's Avatar
 
Super Moderator
Location: CT
If you can learn to controll your heartbeat and blood pressure consciously, I suspect that a reflex action could be controlled consciously. I'd imagine it would be unpleasant to do it too much, and you would risk eye damage by dilating them too much in bright conditions.
MSD is offline  
Old 10-19-2005, 06:52 PM   #7 (permalink)
Kick Ass Kunoichi
 
snowy's Avatar
 
Location: Oregon
It's just a simple matter of mastering biofeedback (the ability to control the body's unconcious processes, like heartbeat, etc). Hah, simple. It is possible, but difficult. I do know people who can do it, though, and I've seen it done.
__________________
If I am not better, at least I am different. --Jean-Jacques Rousseau
snowy is offline  
Old 10-19-2005, 07:21 PM   #8 (permalink)
Tilted
 
Location: KY
Err, why would anyone want to control this?

Hurray, I can make everything appear really bright or really dark at will!
Gary_the_Rat is offline  
Old 10-19-2005, 07:23 PM   #9 (permalink)
lonely rolling star
 
sadistikdreams's Avatar
 
Location: Seattle.
It's basically an aperature on a camera, for you photography folks.
__________________
"Besides the noble art of getting things done, there is the noble art of leaving things undone.
The wisdom of life consists in the elimination of non-essentials.
"
-Lin Yutang

hearts, by d.a.
sadistikdreams is offline  
Old 10-20-2005, 12:27 AM   #10 (permalink)
Crazy
 
Location: Currently Canada. I have been in Norway in the last two years, and in Hong Kong before Norway.
EDIT: W-w-wait! before reading all the crap i typed- W-w-what? there actually ARE people you know who can control the pupil size at will? Wow... I'd really like to see that. (oh, and i remember the heart is made up of, strangely, rough muscles- the only exception about smooth and rough muscles-read on and you'll get what i say- so controlling the heart does not sound that impossible. then again you can just think about scary things or make yourself nervous to make your heart beat faster, and vice versa...)

aye. dilation is a brain reflex. that's why in boxing matches the medics flashlight the knocked-out boxer when the situation looks bad- just to see if he's brain-dead or just, unconscious.

and also, muscles are roughly divided into two types as far as i remember from my Bio classes (I'm studying theatre in uni now...so don't blame me for mistakes ): smooth and rough muscles, or something like that. rough muscles are those you can control(tense) by will, so to speak, for example your bicepts, on the other hand smooth muscles like, hmm, most part of your intestines are not really moving at your will. and the circular muscles if the iris are smooth muscles as i remember, so, i guess... njah, no pupil dilation at will...

it would be really fun though. i'd like to have fun with the images i see- just to adjust the brightness of what i see and, well, to have different effects, simply for fun

interesting idea though.

Last edited by leftyderek; 10-20-2005 at 12:31 AM..
leftyderek is offline  
Old 10-20-2005, 10:15 AM   #11 (permalink)
Free Mars!
 
feelgood's Avatar
 
Location: I dunno, there's white people around me saying "eh" all the time
I think you could, your pupil size changes the way you look at an object. For example, if I was looking at an object that is placed up close in front of me and then I look at it in a way it is further away and yet, its distance hasn't changed.

One of my ex-gf noticed that my pupil size kept changing when I was looking at her and I told her that I was just looking at her in different ways. I dunno, its my theory.
__________________
Looking out the window, that's an act of war. Staring at my shoes, that's an act of war. Committing an act of war? Oh you better believe that's an act of war
feelgood is offline  
Old 10-20-2005, 11:56 AM   #12 (permalink)
Comedian
 
BigBen's Avatar
 
Location: Use the search button
I was going to reply to this thread with a resounding "NO!", but on further reflection, I am continuously amazed at people's ability to control their own bodies. Therefore, I reply with a resounding "Highly doubtful!" and further the question as to why you would want to.
__________________
3.141592654
Hey, if you are impressed with my memorizing pi to 10 digits, you should see the size of my penis.
BigBen is offline  
Old 10-20-2005, 12:15 PM   #13 (permalink)
Devoted
 
Redlemon's Avatar
 
Donor
Location: New England
Quote:
Originally Posted by BigBen
...and further the question as to why you would want to.
Pupil dialation is considered a sign of romantic interest, which is why candlelight dinners are so popular. That might be related to a reason to have manual control.

/ Does anyone remember the first episode of 3rd Rock from the Sun?
"Help, I can't see!" "Idiot, your eyes are closed." "Oh, I didn't realize they were manual."
__________________
I can't read your signature. Sorry.
Redlemon is offline  
Old 10-20-2005, 12:27 PM   #14 (permalink)
I'm not a blonde! I'm knot! I'm knot! I'm knot!
 
raeanna74's Avatar
 
Location: Upper Michigan
From what I understand your mood and emotions can sometimes affect pupil dilation. I have heard that your pupils will constrict when you are angry or in a fight or flight mode. It's one reason why someones eyes can look more 'piercing' when someone is angry. If it can be affected by mood or emotions than I believe you can control it. There is so much about the mind that we don't understand that I believe that any bodily function can be controled to some point consiously. I also believe that few of us will ever be capable of said control since so many of us barely control what we eat or feel, all that well.
__________________
"Always learn the rules so that you can break them properly." Dalai Lama
My Karma just ran over your Dogma.
raeanna74 is offline  
Old 10-20-2005, 11:18 PM   #15 (permalink)
Twitterpated
 
Suave's Avatar
 
Location: My own little world (also Canada)
Quote:
Originally Posted by MrSelfDestruct
If you can learn to controll your heartbeat and blood pressure consciously, I suspect that a reflex action could be controlled consciously. I'd imagine it would be unpleasant to do it too much, and you would risk eye damage by dilating them too much in bright conditions.
When you say control, do you mean completely (as in, have the ability to stops one's heart)? Because I know it can be controlled indirectly (slowed or speeded up slightly, but not full control), but I've never heard of complete control over one's heart.
__________________
"Few people are capable of expressing with equanimity opinions which differ from the prejudices of their social environment. Most people are even incapable of forming such opinions." - Albert Einstein

"Wise men talk because they have something to say; fools, because they have to say something." - Plato
Suave is offline  
Old 10-21-2005, 05:33 AM   #16 (permalink)
Tilted
 
My son demonstrated the ability to control the dilation of his pupils while he was under “whatever-drug-it-is-before-they-really-knock-you-out” anesthesia. At the time, he did not know he was controlling his pupils, he believed he had developed the ability to dim or intensify the room lights by thinking about it. He demonstrated this both for me and the nurse I called. She said she had never seen anything like it before, but did not seem concerned. The ability lasted for less than ten minutes, and he has never been able to duplicate it.
FatFreeGoodness is offline  
Old 10-22-2005, 09:05 PM   #17 (permalink)
MSD
The sky calls to us ...
 
MSD's Avatar
 
Super Moderator
Location: CT
Quote:
Originally Posted by Suave
When you say control, do you mean completely (as in, have the ability to stops one's heart)? Because I know it can be controlled indirectly (slowed or speeded up slightly, but not full control), but I've never heard of complete control over one's heart.
It's mostly people who can adjust rate, but there was one guy in the early 1900s who could stop his heart at will. He did it for half an hour once and died the next day. I can drop my blood pressure by almost 20/10 points in a minute or two just by relaxing and focusing on it. I suspect that I'd be able to do heart rate or even pupil dilation if I put enough effort into it. I can also wiggle my ears, although that's not too uncommon.
MSD is offline  
Old 10-23-2005, 12:03 AM   #18 (permalink)
Twitterpated
 
Suave's Avatar
 
Location: My own little world (also Canada)
Ah that makes a lot more sense to me (can't believe I wrote "speeded". sigh). The ability to slow heart rate (or even increase it) as well as just alter blood pressure is a lot more tangible to me.
__________________
"Few people are capable of expressing with equanimity opinions which differ from the prejudices of their social environment. Most people are even incapable of forming such opinions." - Albert Einstein

"Wise men talk because they have something to say; fools, because they have to say something." - Plato
Suave is offline  
Old 10-26-2005, 12:29 PM   #19 (permalink)
Crazy
 
Redlemon has part of the motivation right.

My eyes are extremely sensitive to light, so I have to squint when I'm walking around outside. I can read in very dark conditions. I'd like to be able to adjust it for when I'm getting ready to walk outside.

Furthermore, it would be an awesome trick.
innovis is offline  
 

Tags
dilation, pupil


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 03:57 AM.

Tilted Forum Project

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
© 2002-2012 Tilted Forum Project

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360