In the OED, epistemology is defined as follows:
epistemology /I%pIstI"mQl@dZi, E-/
· n. Philosophy the theory of knowledge, especially with regard to its methods, validity, and scope.
– DERIVATIVES epistemic adj. epistemically adv. epistemological adj. epistemologically adv. epistemologist n.
– ORIGIN C19: from Gk epistUmU ‘knowledge’.
The issue here is whether and to what extent epistemology reveals the multidimensional character of the mind [brain].
Here are a couple of papers related to this question:
https://arxiv.org/ftp/arxiv/papers/1811/1811.04509.pdf
https://arxiv.org/pdf/1807.00553.pdf