Table 1.

Number of synapses analyzed in each category at each age

	Day 15				Adult
	Total	Thin	Mushroom	Stubby	Total	Thin	Mushroom	Stubby	Branched
Spine numbers	112	42	31	39	91	54	28	4	5
Macular PSDs	99	42	24	33	69	53	7	4	5
Perforated PSDs	13	0	7	6	22	1	21	0	0
Spinules	4	0	2	2	10	0	10	0	0