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Table 1 Intra-individual variability (IIV) for impulsiveness and inattention, measured as phenotypic dispersion (PD i ) averaged over experimental session repeated by six-minute experimental segment in 16 Spontaneously Hypertensive Rats (SHR) and 15 Wistar-Kyoto (WKY) rats [27].

From: Intraindividual variability (IIV) in an animal model of ADHD - the Spontaneously Hypertensive Rat

Trait

χ 2

P

F

P

μSHR ± 95%CI

μWKY ± 95%CI

Impulsiveness

15.3

< 0.0001

15.8

0.0001

1.26 ± 0.201

0.680 ± 0.212

Hyperactivity

52.8

< 0.0001

77.6

< 0.0001

3.65 ± 0.134

2.80 ± 0.136

Inattention

111.5

< 0.0001

452.4

< 0.0001

4.77 ± 0.138

2.62 ± 0.142

  1. Differences in dispersion were estimated using Kruskal-Wallis nonparametric ranking (χ2) and log-transformed PD i (F); differences in means for dispersion were estimated from log-transformed PD i . Variance was estimated from behavioral averages for individuals across all sessions and experimental segments [27].
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Behavioral and Brain Functions

ISSN: 1744-9081

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