Tyrosine Reverses A Cold-induced Working Memory Deficit In Humans
| Effect | None |
| Trial Design | Double blind |
| Trial Length | 24 hours |
| Number of Subjects | 8 |
| Sex | Male |
| Age Range | 18-29 |
| Body Types | Average |
Tyrosine at 150mg/kg was able to preserve working memory (via matching accuracy tests) during acute cold stress without inherently improving memory during a nonstressful period; the degree or preservation was absolute, and the temperature of control and cold stress was 22°C and 4°C, respectively.
This study failed to find an effect on plasma noradrenaline levels (despite tyrosine being increased), which increased during cold stress.
