Figure 5

Behavioural and neurochemical correlations. Correlations with an r > 0.4 or <−0.4 were considered since this value is approximately the threshold where the tested correlations become significant with FDR < 0.05. From the top left to the bottom right: total activity on day killed × Sleep Condition (r = −0.57); LEU × Sleep Condition (r = 0.42); total activity on day killed × MET (r = 0.41); MET × VAL (r = 0.41); KYN × Sleep Condition (r = −0.51); PHE × ILE (r = 0.50); PHE × LEU (r = 0.52); PHE × VAL (r = 0.55); ILE × Sleep Condition (r = 0.41); PHE × MET (r = 0.73); TRP × MET (r = 0.64); PHE × TRP (r = 0.58). Colour code: dark blue, SHAM-CT, n = 11; green, SHAM-SR, n = 12; orange, ROT-CT, n = 10; dark red, ROT-SR, n = 11.