Kärnekull, S.N., Jönsson, F.U., Willander, J., Sikström, S. & Larsson, M. (2015). Long-term memory for odors: Influences for familiarity and identification across 64 days. Chemical Senses, 40(4), 259-26. Retrieved from http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4398052/.
In this study, the authors investigated long-term recognition of body odor. The study was based on earlier findings that showed that forgetting the sensory representation was slower compared to other sensory modalities. The study under consideration investigated odor recognition memory within a 64-day span, including high and low familiar odors. The sample included 83 young participants, and data was collected at four time points: at the very beginning of the study, on the 4th, 16th, and 64th day. The study documents rampant odor forgetting within the span of 64 days, although there was consistency in order identification.