Top-down processing is our ability to sort information as we perceive it. Sensation and Perception are more integrated than previously believed. Instead of sensation coming first (collecting data) and perception coming second (extracting meaning), both occur interactively.

There are so many interesting areas of psychology. Here’s an intro into physiological psychology.

If You Know Nothing About Physiological Psychology

To explain the parts of the eye and how they work, let’s take a look at my eyes. You’ll learn how your eyes work and how they differ form mine. We’ll start at the front and work our way back.

Part 1 of An Albino’s Guide

If you were designing an eye, here are some of your options. Overall, humans chose well.

If I Only Had An Eye

To understand our visual systems, you need to know a bit about light. Here’s a quick introduction on the characteristics of light.

Show Me The Light

There are 4 basic principles of perceptual efficiency. Here’s a quick introduction to them.

Perceptual Efficiency

Perceiving Reality

Dendrites receive signals from other neurons. Here’s a quick look at how they work.

If You Know Nothing About Psych: Dendrites

A neuron has a lot going on. There are negatively charged proteins trapped inside, To fix the imbalance, a lot of things happen in a short amount of time. The result is an electical impulse.  If you like, physiological psych, you’ll love somas.

If You Know Nothing About Psych: Soma

Here are the basic things you need to know about neurons. They are single cells that come in a variety of configurations.

Neuron Basics