When you have certain experiences

You respond with various emotions Stimulus Response

Just that as this sort of stimulus

Produces this sort of involuntary muscle response

Well that's a rather simplified suggestions

Of a complex mental process

But you get the idea

Cause Effect

Nature endows us at birth with 3 general patterns of emotional response

Rage：Is the response to the primary stimulus of Thwarting

Something interfering with our behavior our action

Fear：Is the response to loud noisesor loss of support

And the emotional response to Love

Is usually the result of a show of affection or favors

Something interfering with our behavior

Fear：Is the response to loud noisesor loss of support