While gamma activity was continuously suppressed in the arena, it was positively correlated with time spent in the arena (r = 0.72, n = 22, P < 10−4) during individual exploration sessions, as shown in Fig. 3D.
Results, BF Gamma Deactivation During Exploration, paragraph 2; Figure 3D
What the paper reports
- correlation, r = 0.72, p < 10⁻⁴ (n = 22)
Reading (a), 1-min bins over the first 10 min, gamma averaged over the 12 arena recordings, r = 0.859, p = 0.0015 (n = 10 bins); its 2-s variant r = 0.197, p = 0.0006. Reading (b), mean of per-recording r, 0.129 (one-sample t p = 0.056; per recording -0.27 to 0.40). Reading (c), all epochs pooled, r = 0.045, p = 0.0094. No reading the criterion names puts r within 0.72 +/- 0.072; the correlation is positive at p < 0.05 under (a) and (c). With the 10-min window anchored at the file end (the transfer, on Fig. 3D's axis) (a) gives r = 0.885, p = 0.00066 and (b) r = 0.130, p = 0.021. Reading (b) does not depend on where a file's clock starts; over whole files it gives r = 0.165, p = 0.011. In 9 of 12 arena files the first minute has more movement than the middle, consistent with entry near t = 0 but not proof of it; several of the differences are small (403.9 against 389.2). Bin width moves r across the tolerance. Within tolerance are 30-s bins, 0.744 and 0.747 (start and end anchor), and 20-s bins with the end anchor, 0.662 (p = 6.9e-5); outside are 20-s bins from the start, 0.645, and 2-min bins, 0.860 and 0.969. The criterion names no partial outcome; partially reproduced is used because the positive correlation holds while its size at the criterion's 1-min bins does not match.
How the test differed from the paper’s method
- The data set gives one BF signal per rat for six rats, so tests run over rats (n = 6), or session pairs as a variant, where the paper used 22 hemispheres (claims file header). The two sessions of a condition are averaged per rat (n = 6); rat 3's home-cage session 2 is left out as a second deposit of its session 1, so rat 3's home cage is session 1 alone.
- The paper's n = 22 matches its hemispheres; here 12 arena recordings.
- Each file's clock starts at 0 and files run 8.8 to 13 min, longer than the SI's 10-min trial, and nothing says where arena entry is. The 10-min window is taken from the file start and, as a reading, from the file end; both give the same outcome, and reading (b) is shown over whole files, which needs no anchor.
- Assumed 1-min bins for reading (a), as the criterion names them (Figure 3D's axis runs in minutes); the criterion says the bin width is open, and 30-s bins put r within tolerance (0.744 and 0.747), as do 20-s bins with the end anchor (0.662), which would give reproduced. Asked of the paper's authors with the question on what was correlated (findings).