8 votes
Accepted

Comparion between machine vision & human vision

This is a potentially very very broad question, but I'll try to provide a simple answer that addresses the biggest misconceptions. First of all, animal vision (and brains more generally) is massively ...
Bryan Krause's user avatar
  • 45.7k
4 votes
Accepted

What parts of the visual system could be responsible for a fixed, monocular scotoma?

Yes. You're right. A scotoma only affecting one eye (i.e., one that is not perceived when one eye is closed) is diagnostic of a lesion upstream from the optic chiasm. See Brust's Practice of Neural ...
De Novo's user avatar
  • 8,791
3 votes

What are the response frequencies of sensory neurons?

The auditory brainstem shows "phase-locking" typically up to 1-3Khz at most; 3000Hz is an incredibly high firing rate for a single neuron, but this phase-locking is achieved not by individual cells ...
Bryan Krause's user avatar
  • 45.7k
3 votes
Accepted

20/20 vision translated to resolution

To measure acuity, it's important to have a measure that considers visual space rather than physical world space (it doesn't make any sense to talk about "millimeters" because that says nothing about ...
Bryan Krause's user avatar
  • 45.7k
2 votes

Do adult mosquitoes have color preferences?

Night-time mosquitoes sense IR, UV and CO2 and aromatics as well as colors. Mosquitos can smell blood through the skin too. https://www.asianscientist.com/2015/10/in-the-lab/mosquitoes-detect-veins/ ...
bandybabboon's user avatar
  • 10.4k
1 vote
Accepted

What is the smallest visual unit perceptible to the human eye, like a pixel? (esp. in visual static)

The human eye has two types of sensors that become stimulated when wavelengths of visible light (photons) hit the pigments in these sensors. They are known as 'rods' and 'cones'. Rods detect the ...
Ark Lomas's user avatar
  • 933
1 vote

Visual receptive fields

The centre + surround do not cancel completely, as you can see from these mudpuppy recordings. [Image 1] (Werblin and Dowling, 1969, I believe) One function of a centre-surround set-up is to ...
M Choy's user avatar
  • 31
1 vote
Accepted

How are the images of both eyes combined to form one image?

The visual system contain several stages in which the information from both eyes is progressively mixed and analyzed, starting in the lateral geniculate nucleus. Even if you feel seeing just one ...
heracho's user avatar
  • 737
1 vote

Do adult mosquitoes have color preferences?

Short answer Mozzie preference to colors depends heavily on the species under investigation, as well as the specific preference test used. Background Mosquito color preference has been investigated ...
AliceD's user avatar
  • 52.4k
1 vote
Accepted

Does light from the left visual field reach the temporal left retina?

There is overlap between the left and right visual fields, as shown in Fig. 1. This overlapping part is referred to as the binocular field of view. The monocular field of view (FOV) is 160o (w) x 175o ...
AliceD's user avatar
  • 52.4k

Only top scored, non community-wiki answers of a minimum length are eligible