Endpoint
Choice reaction time
CAT:outcome/choice-reaction-timereported in milliseconds1 finding from 1 compound
What moved it
How to read these marks1 finding · 1 compound · 1 null · by evidence strength
| Compound | Direction | Findings | Strongest evidence |
|---|---|---|---|
| caffeine | no effect | 1 | Evidence strength: very limited. Human evidence with major recorded weaknesses, or non-human, uncontrolled or unverified evidence. |
Every finding here is a null result.
Measured, no effect detected
1 finding
caffeine — no detected effect on
Very limitedEvidence strength: very limited. Human evidence with major recorded weaknesses, or non-human, uncontrolled or unverified evidence.FindingNull result“No significant effects of CAF, NAP, and CAF + NAP on simple reaction time, choice reaction time, and Epworth Sleepiness Scale were found.”
Quoted verbatim from Napping, Caffeine, and Their Combination Enhanced Explosivity and Repeated-Sprint Performance: A Randomized Placebo-Controlled Study.. - Study
- crossover
- Dose
- Caffeine 5 mg/kg, single acute dose, ingested in the early evening (~18:00)
- Population
- 13 physical education students; randomized, counterbalanced, double-blind 4-condition crossover (PLA, NAP, CAF, NAP+CAF)
Napping, Caffeine, and Their Combination Enhanced Explosivity and Repeated-Sprint Performance: A Randomized Placebo-Controlled Study.2026PMID:42086212Permalink
How it is measured
Latency from stimulus onset to a correct response in a computerised multiple-alternative reaction time task from a validated cognitive battery (CDR / COMPASS type or equivalent), averaged over correct responses. The battery and the number of response alternatives are recorded with each finding.
Measured, not recorded
- Subject
- choice reaction time
- Measurements
- 4 measurements
- Recorded as a finding
- No
Show what was measured
Choice reaction time
no effect, SMD -0.69, 95% CI -1.15, 0.17, p = 0.12, p = 0.12, n = 28
Results revealed no significant difference in choice reaction time between the groups (SMD = −0.69, 95% CI: −1.15, 0.17, p = 0.12, B).
PMID:33800853 · one of two readings recorded this
Choice reaction time
no effect
Reaction time (ms) | 454.06 (52.90) | 456.26 (56.53) | 455.16 (54.19) | 467.58 (52.01) | 460.14 (55.93) | 463.79 (53.62)
PMID:39930713 · one of two readings recorded this
Choice reaction time
no effect
Reaction time (ms) | 454.06 (52.90) | 456.26 (56.53) | 455.16 (54.19) | 467.58 (52.01) | 460.14 (55.93) | 463.79 (53.62)
PMID:39930713 · one of two readings recorded this
Choice reaction time
no effect
Reaction time (ms) | 454.06 (52.90) | 456.26 (56.53) | 455.16 (54.19) | 467.58 (52.01) | 460.14 (55.93) | 463.79 (53.62)
PMID:39930713 · one of two readings recorded this
Sources cited
1 paper
- Subject
- choice reaction time
- Findings
- 1
- Papers
- 1