UCF Sherif Test Conformity Video
Summary
TLDRIn this experiment, led by Steven Goldstein from the College of Optics and Photonics, participants are tested on their perception of distance using a laser pointer. The goal is to assess the cone-to-rod ratio in the eyes, which affects distance sight. Steven shines a laser on the wall for a few seconds, and participants guess how far the laser moved, with answers ranging from 2 inches to 12 inches. The experiment seeks to determine the average human ability to estimate laser movement, helping to understand visual perception.
Takeaways
- 👨🏫 The speaker introduces himself as Steven Goldstein from the College of Optics and Photonics.
- 🔬 The experiment is about testing the cone-to-rod ratio in human eyes.
- 👁️ The goal is to measure the average density propensity for distance sight in humans.
- 🔦 A laser pointer will be shone on the wall for 2-3 seconds as part of the experiment.
- 📏 Participants are asked to estimate how far the laser pointer moved in inches.
- 👨🔬 Various participants give their estimations, ranging from 3 to 12 inches.
- 🧑🔬 Participants' guesses vary, with some giving similar estimates and others differing.
- 🎯 The experiment seems to focus on subjective estimations of distance based on sight.
- 🔍 The increments of guesses include values like 3, 5, 6, and up to 12 inches.
- 📊 The experiment is part of a study to gather data on human perception of distance using visual cues.
Q & A
What is the purpose of the experiment described in the transcript?
-The experiment aims to test the cone-to-rod ratio in participants' eyes and evaluate their distance perception when a laser pointer is shone on a wall.
What tool is used during the experiment to measure the distance perceived by participants?
-A laser pointer is used to shine a dot on the wall, and participants estimate how far the dot has moved.
What are the participants asked to do during the experiment?
-Participants are asked to observe the movement of the laser pointer dot on the wall and estimate how far the dot has moved, providing their estimates in inches.
How long is the laser pointer dot typically shone on the wall for each observation?
-The laser pointer dot is typically shone on the wall for about 2 or 3 seconds.
What range of distance estimates did the participants provide?
-Participants provided distance estimates ranging from 2 inches to 12 inches, with variations in their guesses.
How consistent were the distance estimates among the participants?
-The distance estimates varied among participants. Some participants gave similar answers (e.g., 5 or 6 inches), while others provided differing estimates, ranging from 2 inches to 12 inches.
What is the significance of asking multiple participants for their distance estimates?
-Asking multiple participants allows the experimenters to gather a range of data to assess the average human perception of distance for the laser pointer's movement.
How are participants referred to in the experiment?
-Participants are referred to as 'subject one,' 'subject two,' and so on to differentiate their responses during the experiment.
What variations in distance perception were observed among the participants?
-There were significant variations, with some participants perceiving smaller distances (e.g., 2 inches) and others perceiving larger movements (up to 12 inches).
Why is the cone-to-rod ratio relevant in this experiment?
-The cone-to-rod ratio is relevant because it affects how individuals perceive light and distance, which is central to the experiment's goal of testing human visual perception.
Outlines
🔬 Experiment on Visual Perception
Steven Goldstein from the College of Optics and Photonics introduces an experiment to test the cone-to-rod ratio in participants' eyes. The goal is to measure the average propensity for the density of the laser light when it is projected onto a wall. Participants are asked to estimate the distance the laser moves in inches as part of a vision test.
📏 Laser Movement Estimations
The experiment begins with participants estimating how far the laser pointer moves on the wall, with various responses ranging from 3 to 4 inches. Steven continues asking for estimates, with subject responses varying between 3, 5, and 6 inches as they observe the movement of the laser.
🔴 Ongoing Laser Movement Testing
As the test progresses, subjects continue providing estimations of how far the laser moves, with new responses such as 5, 6, and even 7 inches. The laser movement is repeated, and participants are asked to gauge the distance in inches as accurately as possible.
📊 Increasing Discrepancies in Distance Estimates
Participants' estimations begin to vary more widely as some report measurements like 12 and 10 inches. The experiment highlights the differences in individual visual perception, with responses ranging from 8 to 12 inches in the later stages of the test.
Mindmap
Keywords
💡Cone to Rod Ratio
💡Laser Pointer
💡Distance Sight Test
💡Propensity
💡Experiment
💡Vision
💡Inches
💡College of Optics and Photonics
💡Visual Perception
💡Subject
Highlights
Introduction of Steven Goldstein from the College of Optics and Photonics.
Experiment is focused on testing the cone to rod ratio in participants' eyes.
Purpose of the experiment is to assess the average propensity for laser density in distance sight tests.
Participants are asked to estimate how far a laser pointer has moved on a wall.
Subject 2 estimates that the laser moved about 3 to 4 inches.
Subject 3 estimates the laser pointer movement to be 5 inches.
Subject 1 initially estimates the movement to be 5 inches as well.
Further estimations include Subject 1 reporting 6 inches and Subject 2 estimating 2 inches.
Laser is shone on the wall again for further distance estimations.
Subject 1 and Subject 2 provide estimates of 5 or 6 inches for the second round.
Subject 3 estimates the movement to be around 7 inches.
A new estimation of 12 inches is made by Subject 1.
Subject 2 follows with an estimate of 11 inches in response to the increased distance.
Another estimation results in Subject 1 reporting 10 inches.
Conclusion of experiment as participants finalize their distance estimates of the laser pointer's movement.
Transcripts
good afternoon everybody my name is
Steven Goldstein I'm with the College of
Optics and photonics uh we have a little
experiment that we need to uh we're
asking for your help with today
basically we're testing the cone to Rod
ratio in your eyes uh to to see the
average propensity for the density uh
for the laser that we're going to shine
on the wall for the average human uh
distance sight test so basically all you
need to do is it's very simple I'm going
to shine the laser pointer on the wall
uh for about 2 or 3 seconds and I need
you to just tell me how far that you
believe that the laser pointer has moved
in your best uh guesstimate in
inches about 3 in 3 in subject two about
3 to Four 3 to four subject 3 3 in 3 in
I'm going to say five 5 in subject one 5
in 5 in or 5 in 5 in 5 in 4 4 in subject
one how far do you believe it moved 5 in
5 in 6 in 6 in 6 in 6 in 2 in 2
in okay everybody I'm going to shine the
dot and I need you to just tell me how
far you believe the dot has
moved
subject one five or six five or six
subject two five
five 6 in 6 in six 6
in subject One 7 in 7 in about 8 in 8 in
7 in 7 in about 8 in 8
in subject one 12 in 12 in 11 in 11 in
12 in 12 in 10 in 10
in
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