Event enumeration in Mimosa pudica plants

We grew Mimosa pudica plants under controlled lighting conditions. Across three experiments, the plants were repeatedly presented with two days in which light was provided for half of the day, followed by a third day in which light was not. The nyctinastic movements of the plants shifted to follow this Light-Light-Dark pattern. During dark hours prior to light onset, the plants moved more on days in which light was likely to be provided. This movement tendency was not initially present. The plants altered their movement patterns over 15 days in a fashion that is well fit by a logarithmic function. After accommodating their motion to follow a 72-hour Light-Light-Dark cycle, the plants immediately generalized their performance after an abrupt shift to a 60-hour cycle in Experiment 2. In Experiment 3, when the day length was randomly varied after every Light-Light-Dark cycle, the plants exhibited these tendencies when the day durations were between 12 and 24 hours. Although high levels of variability were apparent, the plants again seemed able to track the number of lighting events and use that information to control their movements. The results support the surprising claim that plants, and perhaps other non-neuronal tissues, may be capable of processing enumeration-related information. Original data files and matlab scripts are accessible via Google drive here: https://drive.google.com/drive/folders/17POd5A6fBKelMuwQru6VK3myaiA6lwzX?usp=drive_link They are linked here, but downloading more than one file at a time seems to result in corrupted zip archives. I'm not certain why.