Physiology and Perception of the Eye

MCAT Basics (from MedSchoolCoach)

MedSchoolCoach

Science

4.6 • 612 Ratings

🗓️ 4 February 2025

⏱️ 42 minutes

🔗️ Recording | iTunes | RSS

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Summary

This podcast focuses on the eye. It begins with a brief overview of the eye's anatomy and physiology. The discussion then shifts to rods, cones, and the phototransduction pathway. The final section addresses perception.

Key topics include visual field processing, differences between binocular and monocular cues, and feature detection (covering both Magno and Parvo pathways).

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[00:00] MCAT Tutoring from MedSchoolCoach

[00:34] Welcome to MCAT Basics

[01:06] Topics covered in this episode

[02:10] Anatomy & physiology of the eye

[16:02] Phototransduction pathway

[26:59] Perception

[28:13] Visual field processing

[31:34] Binocular versus monocular queues

[35:02] Visual feature detection - Gestalt principles

[38:18] Parallel Processing

[39:12] Parvo versus Magno pathways

Transcript

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0:00.0	Welcome to MCAT Basics, your ultimate guide to the essential topics you need to master
0:06.4	for the MCAT, brought to you by the physicians at Med School Coach.
0:11.0	Every week, Sam Smith breaks down high-yield MCAT topics, ensuring you're primed for success
0:15.9	on test day.
0:17.3	Join Sam as we explore the most crucial subjects outlined by the AAMC, pulled from official practice materials and third-party resources.
0:24.9	Get ready to elevate your MCAT game with topics tailored to maximize your score potential.
0:30.1	Hello, I'm Sam Smith.
0:32.6	This podcast is going to cover the thing that you see out of, which is the eye.
0:37.4	And I'll first start by
0:38.3	breaking down the eye in terms of its anatomy and physiology. I'll talk about the components of the
0:43.7	eye and their function as well. And then I'll get into rods and cones, spend a bit of time there,
0:50.4	talk about things like the phototransduction pathway. And then I'll get into perception. And in terms of perception, I'll talk about things like the phototransduction pathway and then I'll get into perception
0:55.4	and in terms of perception I'll talk about visual field processing I'll talk about feature
1:00.7	detection and I will talk about parallel processing and this material will show up in one out of the
1:07.3	four mcat sections that's going to be the psych-sosch section. I've always found this stuff pretty interesting. I mean, it's kind of amazing to me that just based on the way that light enters the eye and is focused on the back of the retina, we can see all these objects around us and colors and everything just perfectly crystal clear. So, yeah, I hope you enjoy this podcast. I hope you learn some good things out of it.
1:29.5	And good luck as you study for the MCAT.
1:37.1	All right, so the first thing I want to talk about here are the different parts of the eye.
1:41.1	And so what I'm going to do is I'm going to essentially introduce the different
1:44.8	parts of the eye going from the outside in. And then while I'm doing that, I'll kind of just
1:49.4	briefly talk about the function of each of these different parts. All right, so pretend that you're
1:54.5	looking up at the sun and there's a ray of light that just traveled for eight minutes and 20
2:00.1	seconds from the sun all the way down
	...

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