Front Matter

18 Introduction to Autism Spectrum Disorders

Smoky

shrew

Guinea pig Marmoset

Capybara

1cm

Squirrel monkey

1cm

1cm 1cm

1cm

Capuchin monkey

Human

Macaque monkey

Agouti Galago Owl monkey

0.176g0.347 g

36 M52M 71 M90M 131M 200M 204M

240 M

1600 M

6376 M

86000 M

3246 M

3690 M

634 M 857M 936M

1468 M

0.416g 1.020 g 0.802 g 1.802 g 0.999 g

3.759 g

76.036 g

87.35 g

1508 g

30.22 g

53.21 g

7.78 g 18.365g 10.15 g

15.73 g

Short-tailed

shrew Mouse Hamster

Star-nosed

mole Rat Eastern mole

Figure 1.9 The size of the human brain compared with that of other mammals. Source:

https://www.google.com/search?newwindow=1&hl=en&site=imghp&tbm=isch&source=

hp&biw=1264&bih=576&q=relative+size+of+mammalian+brains&oq=relative+size+of+

mammalian+brains&gs_l=img.3...1668.11635.0.13335.34.34.0.0.0.0.66.1418.33.33.0....0...

1.1.64.img..1.19.861.0..0j35i39k1j0i30k1j0i24k1.isfvXm_tTjU#imgrc=BGRS6TbiE0ByLM.

(See insert for color representation of this figure.)