12 Matching Annotations
  1. Sep 2020
    1. Ip, A., Ahn, J., Zhou, Y., Goy, A. H., Hansen, E., Pecora, A. L., Sinclaire, B. A., Bednarz, U., Marafelias, M., Mathura, S., Sawczuk, I. S., Underwood, J. P., Walker, D. M., Prasad, R., Sweeney, R. L., Ponce, M. G., LaCapra, S., Cunningham, F. J., Calise, A. G., … Goldberg, S. L. (2020). Hydroxychloroquine in the treatment of outpatients with mildly symptomatic COVID-19: A multi-center observational study. MedRxiv, 2020.08.20.20178772. https://doi.org/10.1101/2020.08.20.20178772

  2. Aug 2020
  3. May 2020
    1. Hippocampal size of nonusers reflects a direct relationship to memory function; the smaller the hippocampus, the poorer the memory function. Individuals who use marijuana and tobacco show an inverse relationship, i.e., the smaller the hippocampus size, the greater memory the function. Furthermore the number of nicotine cigarettes smoked per day in the marijuana and nicotine using group appears to be related to the severity of hippocampal shrinkage. The greater the number of cigarettes smoked per day, the smaller the hippocampal volume and the greater the memory performance. There were no significant associations between hippocampal size and memory performance in individuals who only use tobacco or only use marijuana.

      They mention abstainers below. It appears that they are saying that there is memory improvement compared to complete non-smokers. Will need to check actual study. Note that my interest in nicotine is confounded by the use of tobacco.

      Edit: eyeballing the graphs, it appears that the tobacco group did the best, while the marijuana plus tobacco group did the worst. Given the small sample size and high variability, these are not statistically significant. Nonetheless, that suggests that marijuana never benefits memory. Edit: eyeballing the graphs, it appears the tobacco group did the best, while the marijuana plus tobacco group performed worst. Given the small sample size and high variability, these results are not statistically significant. Nonetheless, it suggests that marijuana is never a benefit to memory.