Table 1.
Sleep manipulation protocols of studies concerning infants and toddlers (n=5).
| Study | Days of stabilization period | Sleep duration/ bedtime |
Day(s) of manipulation period | Sleep condition | Sleep duration/ bedtime | Point of measurement | Content of measurement | ||
|---|---|---|---|---|---|---|---|---|---|
| Night | Day | Night | Day | ||||||
| Berger (2012)62 | 1-5 | 20:00-07:00 | 12:30-14:00 | 6 | Nap restriction | 20:00-07:00 | - | 15:00 | Emotional assessment,
video recorded (30min): • 11 emotion eliciting pictures • Puzzle task |
| 6-11 | 20:00-07:00 | 12:30-14:00 | 11 | Normal sleep | 20:00-07:00 | 12:30-14:00 | 15:00 | ||
| Cremone et al. (2017)52 | 0 | ns | ns | 1 | Nap restriction | ns | - | ≈15:00 | Emotional attention
bias • Dot probe task |
| 0 | ns | ns | 1 | Normal nap | ns | 13:00-15:00 | ≈15:00 | ||
| Han (2014)66 | 1-7 | 11-12hrs/day | 8 | Nap restriction | ns | - | ns | Emotional assessment
(11min) • 32 visual and auditory stimuli pairings |
|
| 9-11 | 11-12hrs/day | 12 | Normal nap | ns | Nap option in lab | ns | |||
| Miller (2015)61 | 1-5 | 20:00-07:00 | 12:30-14:00 | 6 | Normal sleep | 20:00-07:00 | 12:30-14:00 | 15:00 | Challenge task, video
recorded: • Puzzle task |
| 6-11 | 20:00-07:00 | 12:30-14:00 | 11 | Nap restriction | 20:00-07:00 | - | 15:00 | ||
| Schumacher (2017)53 | 1-5 | 20:00-07:00 | 12:30-14:00 | 6 | Normal sleep | 20:00-07:00 | 12:30-14:00 | 10:00 | Challenge task, video
recorded: • Go/no go task • Puzzle task |
| 6-10 | 20:00-07:00 | 12:30-14:00 | 11 | Sleep restriction | 23:00-07:00 | 10:00 | |||
Abbreviations: ns = Not specified.