The fact that Jesus was born of a human presumes he was fully human, with a human mind. A human soul does not exist without a human mind and human emotions. The Bible does not explicitly say he had a brain but of course that was assumed as well. It does not explicitly say he had ‘emotions’ yet his emotions were prevalent and expressive in a divine way. How the human brain interacts with the mind of the soul – none can know. There is no need to explicitly declare subsets of greater declarations. To say Jesus had a hand presumes he had fingers.
27 “Now my soul is troubled, and what shall I say? ‘Father, save me
from this hour’? No, it was for this very reason I came to this hour.
28 Father, glorify your name!”
The New International Version. (2011). (Jn 12:27–28). Grand Rapids,
His human mind is why Jesus did not know everything. He needed his diapers changed and learned how to read and write, etc. He needed a human mind to learn how to walk and talk. Even as an adult, unless the Holy Spirit made his human mind know the thoughts of his eternal mind, he would have known very little. Jesus needed spiritual wisdom so desperately that he usually got up earlier than everyone else to pray and seek God out of need. Most of our needs are spiritual and have direct relations with our soul (human emotional and mental). Especially when he approached the cross Jesus needed the eternal mind to support his human soul, his human heart and mind. A human soul can't have meaning without a human mind presumed. Clearly, there is no doubt that Jesus was human with a human mind. He was human in every way, except without sin as we was also God, born of the Holy Ghost.
A word study on the soul linguistically proves historically that the word 'soul' has always included a 'mind'. Early Greek theory includes the human mind in the soul:
b. Division of the Soul.
Platonic trichotomy (→ VI, 395, 9 ff.) is the starting-point of all
later divisions. Aristot. An., III, 10, p. 433b, 1 ff. etc. has in the
strict sense only a division into δυνάμεις and not μέρη. He expressly
ascribes all vegetative and animal functions to the soul, and thus
adds these to its structure along with the forces known from Plato.
The rational sphere of the soul is specifically human, the irrational
and impulsive sphere man shares with animals, and the vegetative
sphere he shares with both animals and plants, Gen. An., I, 4, p.
741a, 1 etc.26 All understandings agree that the power of thought has
the highest worth.28
Schweizer, E., Bertram, G., Dihle, A., Tröger, K.-W., Lohse, E., &
Jacob, E. (1964–). ψυχή, ψυχικός, ἀνάψυξις, ἀναψύχω, δίψυχος,
ὀλιγόψυχος. G. Kittel, G. W. Bromiley, & G. Friedrich (Eds.),
Theological dictionary of the New Testament (electronic ed., Vol. 9,
p. 614). Grand Rapids, MI: Eerdmans.
Biblical text includes the mind under the concept of the soul:
10 For wisdom will enter your heart,
and knowledge will be pleasant to your soul.
The New International Version. (2011). (Pr 2:10). Grand Rapids, MI:
What potentially confuses the issue is that we actually don't know what we mean when we say 'mind'. What I understand the mind to mean is that part of our inner person/soul that thinks 'logically'. For example, when I see two trees and think to myself, "those are two trees!". I have summed up those objects and counted them in my mind. (I also presume, the human soul has some interrelationship to the brain / nervous system but this is off topic and unknowable). When speaking of Christ, he was fully-God and fully-man. Therefore, I presume he had a human mind but also the eternal divine mind. He was eternal and knew all things but in his human nature he was finite and learned things gradually. I don't pretend to understand how these two natures related to one another inside the mystery of Christ, just stating my assumptions.
When I said Jesus needed the eternal mind to support his human mind, I am therefore specifically noting that: although in my ignorance, I may have thought his divine nature would directly impress upon the mind of his human nature wisdom and knowledge, it seems not. Jesus actually received divine wisdom through the Spirit (at least as a primary means). It's hard not to notice this when reading the gospels. He really relied on the Spirit is a steady constant way making him an example for all humans who need their minds strengthened.