1.3.4 Emotions

EMOTIONS

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1.3.6 Memory

Friday

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1.3.5 Live Lesson

Examine the parts of the brain that compose the limbic system

Learners can...

Differentiate between human emotional responses and the emotional responses of other animals

Identify how different parts of the brain respond to different emotions

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new vocabulary

limbic system

emotion

prerequisite vocabulary

CEREBRUM

The largest part of the brain that controls conscious functions

BRAIN

The main control center of an animal body

NEUROBIOLOGIST

A scientist who studies the brain

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A common emotional response for many animals is sometimes referred to as "fight or flight."

Desire to Escape

Fear

Readiness to defend oneself

Aggressive Response

FIGHT OR FLIGHT!

• Human emotions are complex and often difficult to describe.
• Specific- happy or angry with a person or situation
• More general- feelings of joy or sadness
• Can come and go over time

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limbic system

• Helps form memories

hippocampus

• Aggression center

amygdala

• Sensory relay station

thalamus

• Unconscious activities

hypothalamus

POSITIVE emotions

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Also responds to emotions!

NEGATIVE emotions

Cerebral Cortex

video

amygdala

hippocampus

thalamus

right hemisphere of cerebral cortex

hypothalamus

left hemisphere of cerebral cortex

Strong activity caused by positve emotions

Strong activity caused by negative emotions

Stores memory that can trigger emotional reactions

Routes sensory input to the correct areas of the brain

Feelings such as fear, anxiety, and anger originate here

Controls unconscious body functions and aids with fight or flight responses

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The range of human emotions has long been of interest to scientists.

Different Emotions

facial expressions

Have you ever wondered if facial expressions have the same meaning in different parts of the world?

But wait, there's more!

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Show what you learned

THALAMUS

Sensory Relay Station

• Acts as a relay station for sensory signals
• Everything you see, hear, taste, and touch move through the thalamus
• Thalamus then moves those signals to the appropriate area of the brain
• Part of the limbic system because senses play an important role in emotions

Now, scientists have proposed even more emotions- possibly even up to 27!

• anger
• fear
• surprise
• disgust
• happiness
• sadness

Basic Emotions

In the 1960s, a psychologist named Paul Ekman studied facial expressions and concluded that there were six basic emotions:

• Scientists use this information to better understand how individual personalities appear in someone
• Depending on which side is more active, people may be more outgoing and happy OR more timid and fearful
• Prefrontal Cortex also affects higher level thinking (something that separates humans from other animals)

Cerebral Cortex

HYPOTHALAMUS

Unconscious Activities

• Controls unconscious activities like body temperature, hunger, thirst, etc.
• Impacts the fight or flight response within an organism

• Body's smart control coordinating center

• Keeps your body in a state of homeostasis

HIPPOCAMPUS

Helps form new memories

• Converts short-term memory to long-term memory

EMOTION

A state of mind based on someone's circumstances, mood, or connection with others

• Humans experience many different emotions- maybe even up to 27 emotions!

AMYGDALA

Aggression center

• Feelings of anger, violence, fear, and anxiety origniate from the amygdala

LIMBIC SYSTEM

a set of structures in the brain that deal with emotions and memory

• The limbic system controls emotions

Check your answers!