Table 2.

Sensory and motor development of Lsamp −/− mice.

Measures of development	Mature Responses in Lsamp−/− mice
	P5	P7	P14	P21	Adult
Righting	85	100
Postural flexion/extension	normal	normal
Forelimb grasping		100	100
Hindlimb grasping			100
Inverted screen holding			100	100
Negative geotropism		100	100
Bar holding			100	100
Cliff drop aversion			100	100
Tail suspension			100	100
Visual Placing				100
Eyelid opening			open
Startle					normal
Pre-pulse inhibition					normal

Acquisition of mature responses in Lsamp ^−/− are expressed as percentage of animals expressing a mature response (Score = 9). No differences found between genotypes.