12. The computer-readable medium of claim 10 , wherein the learning the function mapping comprises: using a loss function with one of a linear function and a non-linear function, and identifying a set of optimal weights that produce a minimum of the loss function.
10. A computer-readable medium comprising instructions that when executed by a processor running on a computing system perform a method for assessing brain health of a person, said method comprising the steps of: a. receiving, at the computing system, inputs from a data collection module installed at one or more electronic devices, the inputs associated with one or more interactions of the person with the one or more electronic devices, the inputs recorded by the data collection module without requiring additional actions by the person while the inputs are recorded, the computing system comprising the processor executing instructions for learning a function mapping; b. computing, by the computing system, a brain health metric by learning the function mapping from the inputs to the brain health metric, wherein the brain health metric is a percentile rank relative to a population of users, the brain health metric indicating the person's likelihood of being in at least one of a cognitive state and a neuropsychological state; and c. outputting, by the computing system, the brain health metric.