W01. Introduction 02
Today, we inspect structure and function of the purported atomic units of both computation and cognition. We see how digital signals are produced and used, and compare them to how neuronal signals are produced and used. With it, we pose the question of whather brains are "like" computers at the fundamental levels.
Pre-readings and Videos
This week's readings and videos introduce the basic concept that a computer is a good metaphor from the brain. With it, we both advance the argument that it is, but immediately demonstrate a certain amount of hubris if we apply the metaphor naively. The better question is: in what ways can we helpfully use computers as an analogy, model, or simulation of certain aspects of human cognition?
The Thinking Machines
Computers have been compared to human brains since their inception. Are the current ways of thinking about computers any different than back then? What's changed?
Living Things Are Not (20th Century) Machines
- Living Things Are Not (20th Century) Machines The latest technology often gets used as a metaphor for the human body. Is a computer really a good metaphor for the brain?
(Optional) Open Circuits
The Open Circuits book is one of the best sources for getting a close-up look at cutaway circuits like the ones I've shown you in class. It is not a required textbook, but if you're interested in learning about circuits, it's an excellent way to get a physical sense for the inner workings.
Summary of the Day
- Activity. Digital Signals.
- Activity. Digital Signals notes.
- Lesson. Very basic probability.
- Lesson. Neuron Logic.
- Class notes. Intro 02
Learning Goals
- Use buttons and switches as models for all sensing systems.
- Be able to wire buttons and switches into a circuit and explain their function.
- Analytically compare digital signals with neuronal signals.