Sensory Systems

Question 1

What makes neuroscience and sensory perception sort of a difficult subject?

Answer 1

There is a tremendous number of neurons in your brain.

Question 2

How many neurons does the human brain contain?

Answer 2

About 100 billion neurons

Question 3

How do neurons “talk” to one another?

Answer 3

through synapses

Question 4

What do neurons do?

Answer 4

By creating your thoughts and your perception etc

Question 5

How many synapses do neurons have?

Answer 5

About 7,000

Question 6

So every neuron talks to 7000 other neurons at ____?

Answer 6

any given time

Question 7

Each ____ is also covered by thousands of receptors that respond to neurotransmitters, neuromodulators, hormones….??
all of these chemicals change how ___ behave

Answer 7

Neuron

Question 8

Neurons are constantly talking to each other by?

Answer 8

sending synaptic inputs and receiving synaptic inputs

Question 9

Humans are very ___ creatures

Answer 9

visual

Question 10

____ process a lot of the environment through our vision, and almost ___ of our brain is dedicated to visual processing in one form or another

Answer 10

Humans; half

Question 11

Why do we need all this immense processing, powerful vision?

Answer 11

The first reason is that the visual information out in the world is actually extremely ambiguous

Question 12

We have two eyes and this amazing processing system in our heads,

Answer 12

and this allows us to distinguish between something that’s, by its nature, extremely ambiguous

Question 13

You need a very ____ _____ ____ to sort of make sense of all of this

Answer 13

complicated processing system

Question 14

What forms perception?

Answer 14

Your brain

Question 15

Your brain actively puts together the information from your ____, with a lot of other stuff internally

Answer 15

eyes

Question 16

Our ____ ____ is built from the information that comes in, together with a bunch of innate rules that already exist in our brain

Answer 16

sensory perception

Question 17

This “internal model of the world” is built by ___ combined with your own experiences including your memories, emotions, logic, and beliefs

Answer 17

innate rules

Question 18

Why do we have innate rules?

Answer 18

Our ancestors lived in a very dangerous world, and had to make quick decisions to survive

Question 19

hostile environment

Answer 19

We evolved innate rules, assumptions and short-cuts to help us quickly decide in a hostile environment