Physical explanation of eye contact

  • Thread starter stubbe11
  • Start date
  • #1
stubbe11
3
0
Is it not fascinating that you can feel eye contact on such distances we do?

What is it that we actually detect?

I understand that the eye absorb light, it may be the starting point for the explanation?
 
Last edited:

Answers and Replies

  • #2
Nugatory
Mentor
14,116
7,883
Wha exactly does eye “contact” mean? Answer that question and you will have the answer to your question.
 
  • #3
36,245
13,295
Eyes reflect some light, just like every other body part. You can see in which direction they look if they are not too far away. Humans have a lot of experience in judging where someone looks as eye contact has an important role in society.

If you don't see the eyes of that person you can't detect where they are looking at.
 
  • Like
Likes pinball1970
  • #4
stubbe11
3
0
Hum, yes but what is causing the feeling?
Is it that the eyes detect the absence of light from the point in space, compared to the surroundings?

Imagine two matrices of light values, each representing one decoded vision of the environment for one person:

564326
45(2)34
587867

454767
34(2)78
455676

Let (2) be the incoming center for the pupil. Is this what our sensors detect as "eye contact"?
 
  • #5
36,245
13,295
Is it that the eyes detect the absence of light from the point in space, compared to the surroundings?
No. You just look at the eyes in the same way as you look at the nose or anything else. There is nothing special about the eyes of a different person. What your brain makes out of the knowledge what a person is looking at is a question of biology.
Imagine two matrices of light values, each representing one decoded vision of the environment for one person
That makes no sense.
 
  • #6
pinball1970
Gold Member
1,608
2,222
Is it not fascinating that you can feel eye contact on such distances we do?

What is it that we actually detect?

I understand that the eye absorb light, it may be the starting point for the explanation?
Context is important here, if you are in a crowd looking for a friend then you have primed your brain to find a specific shape colour features etc.
Eye contact with a stranger has lots of connotations, potential mate, enemy, family member. Millions of years of evolution at work.
 
  • Like
Likes jedishrfu and BillTre
  • #7
berkeman
Mentor
64,133
15,343
  • Like
Likes pinball1970 and BillTre

Suggested for: Physical explanation of eye contact

  • Last Post
Replies
17
Views
172
Replies
25
Views
676
  • Last Post
Replies
4
Views
437
  • Last Post
Replies
10
Views
673
  • Last Post
Replies
3
Views
526
Replies
9
Views
1K
Replies
10
Views
297
Top