Table 1.

Time following Blast Exposure when Behavioral Testing Was Conducted

Task	Cohort 1	Cohort 2	Cohort 3
N (tested early)	20 blast and 18 control	20 blast and 20 control	20 blast and 20 control
N (tested late)	8 blast and 8 control	12 blast and 12 control	Not tested
Elevated zero maze
Early	1 week	3 weeks	5 weeks
Late	36 weeks	40 weeks	Not performed
Light dark escape
Early	2 weeks	3 weeks	4 weeks
Late	36 weeks	40 weeks	Not performed
Novel object recognition
Early	2 weeks	4 weeks	6 weeks
Late	Not performed	41 weeks	Not performed
Fear conditioning
Early	5 weeks	5 weeks	8 weeks
Late	36 weeks	42 weeks	Not performed