Music: How Does a Duck Know?By Crash Test Dummies

How does a duck know what direction south is?And how to tell his wife from all the other ducks?You can cut a chicken's head offand it will keep on running and twitching[CHORUS]When everything seems planned outwhen everything seems nicely planned outwell the human race will come and smack your face

*Habituation of sensory

information

*Today we will explore habituation in depth.

*New page in journal, titled: Habituation

*Record observations for each station. Separate each observation station with space in your journal.

*So did you become

habituated?

*Do we only have 5 senses?

*This lab demonstrates sensory submodalities.

*How?

*Consider the sense of touch. Think of all of the sub senses surrounding our sense of touch.

*Temperature, texture, pressure, pain.

*Senses also work together to form perceptions of our environment. Example taste and smell.

*Research Mike the Chicken. Internet search not wikipedia. Need 1st page hard copy of site researched or no extra credit given.

*Three ?’s answered on paper typed.

*Who was he?

*Why is he famous?

*What specifically do we learn about the brain from Mike?

*3 extra points possible/one day only.

Over 500 million years ago, organisms with a spinal cord evolve a brain.

Their brains were very simple swellings from the spinal cord and consisted primarily of a brain stem, along with poorly developed

other regions.

The Brain Stem

There are 3 main parts to the brain stem. Do you remember them?

Medulla *does the “dull stuff” it regulates heart beat, breathing and

digestion. If the medulla becomes too intoxicated (drunk) you can die!

*The pons:

*are a relay system for the rest of the brain. *(Pass On Nerve Signals ~ get it? PONS)

*The midbrain:

*found at the top of the brain stem (approximately the middle of the brain.) It performs our auditory and visual reflexes- remember our discussion of reflexes doesn’t really involve the brain. ~Ears and eyes can blink.

*Eye reflexes

Location Primary functions

It also allows us to think smoothly and change our minds. It coordinates that little voice in our heads

You lose your coordination when your “Bell” gets

rung.

The next part of our brain to evolve was the limbic system sometimes referred to as one of the following: the emotional brain, old mammal brain, and love brain.

*Hypothalamus

*Pituitary gland

*Amygdala

*Hippocampus

*Thalamus

*The limbic system has 5 distinct parts, can you name all 5?

*Maintains homeostasis.

*Keeps body in balance with regard to feedback from things such as temperature and water content.

What do glands do?

secrete hormones (chemicals that are produced in one part of the body that

impact another part of the body)

Example Growth Hormone or ADH

The pituitary works in conjunction with the hypothalamus to maintain (homeostasis)

a balanced state in our body.

Example of ADH (anti diuretic hormone)

Amygdala*What does this

gland do?

*controls emotions especially fear and rage.

*Greek/Latin almond.

*Also associated with the formation of memory of emotional events.

*“Amy got da guy mad.”

Thalamus*What does this organ do?

*Thalamus “throws the signals around.”

*Relays sensory and motor information into connections with the cerebrum.

*This allows us to further process sensory and motor information

Hippocampus*What does this organ of

the limbic system do?

*You never forget when the hippo camps with us.

*Early memory formation, consolidation of short term to long term memory.

*Latin for sea-horse