![Hello, Mr. Rat Brain.
Hello, Mr. Rat Brain.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Hello, Mr. Rat Brain.
The Big Bang Theory Season 7, Episode 13
![...so as to engage
the superior colliculus of my brain.
...so as to engage
the superior colliculus of my brain.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...so as to engage
the superior colliculus of my BRAIN.
The Big Bang Theory Season 3, Episode 14
![Oh, brain lesions
are fascinating.
Oh, brain lesions
are fascinating.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Oh, BRAIN lesions
are fascinating.
The Big Bang Theory Season 7, Episode 1
![...and discuss your relationship
with your parents during a brain scan?
...and discuss your relationship
with your parents during a brain scan?](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...and discuss your relationship
with your parents during a BRAIN scan?
The Big Bang Theory Season 2, Episode 15
![Penny's emotional responses originate in the
primitive portion of brain, the amygdala.
Penny's emotional responses originate in the
primitive portion of brain, the amygdala.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Penny's emotional responses originate in the
primitive portion of BRAIN, the amygdala.
The Big Bang Theory Season 1, Episode 17