Table 2. Definitions of behavioral metrics.
# | Measure | Description | Quantification | Direction indicating impairment |
---|---|---|---|---|
Elevated Plus Maze metrics (EPM_) | ||||
1 | Commitment | Full entrances to the open arms relative to sum of full entrances and jittery entrances to the open arms () |
|
experimental < controls |
2 | Distance | Distance traveled (cm) during the ten minutes in the Elevated Plus Maze | experimental < controls | |
3 | Exploration Entrances | Entrances into the crossroads central area | experimental < controls | |
4 | Exploration Time | Time in the crossroads central area | experimental < controls | |
5 | Open-Arm Preference | Time in the open arms () relative to total time in closed and open arms | experimental < controls | |
Grooming metrics (GR_) | ||||
6 | Grooming Ratio | Difference betweenaverage grooming bout length in CNO and SALINE condition relative to SALINE condition |
experimental > controls |
|
Social Chamber metrics (SC_) | ||||
7 | Baseline Distance | Distance traveled (m) during baseline phase (10 min free exploration of the empty social chamber apparatus) | experimental < controls | |
8 | Novelty-Seeking | Difference between summed entrances to mouse and object chambers in test and baseline sessions, relative to baseline session |
experimental < controls |
|
9 | Social Preference | Time spent interacting with the novel mouse () relative to total time interacting with either the novel mouse or novel object () |
experimental < controls |
|
10 | Test Distance | Distance traveled (m) during test phase (10 min exploration of the social chamber apparatus with the novel mouse and object present) |
experimental < controls |
|
Y-maze metrics (YM_) | ||||
11 | Final Learning | Mean of the percent correct trials in acquisition sessions 3 and 4 |
experimental < controls |
|
12 | Initial Learning | Percent correct trials in acquisition session 1 |
experimental < controls | |
13 | Multisession Learning | Slope of the linear regression of acquisition sessions 1 (ACQS1), 2 (ACQS2), and 3 (ACQS3) |
linear regression slope of (ACQS1; ACQS2; ACQS3) |
experimental < controls |
14 | Distance | Combined distance swum (m) in the three habituation trials (HAB1, HAB2 and HAB3) (60 s each) of free swimming in the empty Y-maze apparatus | + + | experimental < controls |
15 | Final Reversal 1 |
Mean of the percent correct trials in reversal day 1 sessions 3 () and 4 | experimental < controls | |
16 | Initial Reversal 1 |
Percent correct trials in reversal day 1 session 1 (RD1S1) |
RD1S1 | experimental < controls |
17 | Multisession Reversal 1 | Slope of the linear regression of reversal day 1 sessions 1 (RD1S1), 2 (RD1S2) and 3 (RD1S3) |
linear regression slope of (RD1S1; RD1S2; RD1S3) |
experimental < controls |
18 | Final Reversal 2 |
Mean of the percent correct trials in reversal day 2 sessions1 (RD2S1), 2 (RD2S2), 3 (RD2S3) and 4 (RD2S4) |
experimental < controls | |
19 | Initial Reversal 2 |
Percent correct trials in reversal day 2 session 1 | RD2S1 | experimental < controls |