Scientific American 201905

May 2019, ScientificAmerican.com 65

A

G

G

R

E

S

S

I

O

N

A

G

G

R

E

S

S

I

O

N

A

G

G

R

E

S

S

I

O

N

O

F

O

F

O

F

NNN

UUU

T

H

E

T

H

E

T

H

E

Experiments in humans and animals have started

to identify how violent behaviors begin in the brain

By R. Douglas Fields

SOCIAL NEUROSCIENCE

Illustration by Scott Bakal

RRR

OOO

SSS

OOO

TTT

HHH

MMM

AAA

© 2019 Scientific American