Various classical authors probably influenced Avicenna's theories and knowledge on the brain: The general sketch of the inner senses from Aristotle, cerebral anatomy from Galen, ventricular localization from Nemesius, and the humoral paradigm from Hippocrates, Aristotle, Plato, Stoics, and Galen. Additionally, Avicenna is the most prevalently cited author in the next generations, and is an important case, as he has retained a prominent place in both philosophy and medicine.
The major questions that her study intents to address are the following:
- Why did the theory of inner senses survive in the context of medicine: was the theory applicable in medical practice? Why did the theory of inner senses survive?
- To what extent was theory of inner senses integrated into the realm of humoral medicine?
- What mechanisms underlay the expansion of the Aristotelian sensus communis and phantasia into the five Avicennean inner senses?
- Why the inner senses were localized inside the 'ventricles' and not the substance of the brain?
 Kemp, Simon/Fletcher, Garth J. O.: The Medieval Theory of the Inner Senses. In: The American Journal of Psychology, Bd. 106 (1993), H. 4, S. 559–576.
 Goichon, A.-M.: "IBN SINA, Abu 'Ali al-Husayn b. 'Abd Allah b. Sina, known in the West as Avicenna". In: Encyclopedia of Islam. Koninklijke Brill NV (1999), Leiden, The Netherlands.
 Pormann, Peter E.: Avicenna on medical practice, epistemology, and the physiology of the inner senses. In: Interpreting Avicenna, Critical Essays, Cambridge University Press, Cambridge (2013), S. 91–108.