I hope Bonita (and others who have extensive knowledge of TUB) will let me know if TUB even allows for such a theory, or if TUB even goes further to potentially support such a theory.
Mind is not contained within the skull. Mind makes contact with physical neural tissue, but it does not reside there. Mind is a ministry and it functions within overlapping circuits.
111:1.5 Human consciousness rests gently upon the electrochemical mechanism below and delicately touches the spirit-morontia energy system above. Of neither of these two systems is the human being ever completely conscious in his mortal life; therefore must he work in mind, of which he is conscious.
Adam and Eve, before being demoted to human, were able to transmit thoughts to their kin over a distance of 50 miles due to a particular gas structure in their heads. Humans do not have these structures.
74:6.6 Adam and Eve could communicate with each other and with their immediate children over a distance of about fifty miles. This thought exchange was effected by means of the delicate gas chambers located in close proximity to their brain structures. By this mechanism they could send and receive thought oscillations. But this power was instantly suspended upon the mind’s surrender to the discord and disruption of evil.
Each person has their own individualized nebula of the cosmic mind ministered to by the adjutant mind ministry (among other mind ministries).
9:5.4 The Conjoint Creator is the ancestor of the cosmic mind, and the mind of man is an individualized circuit, an impersonal portion, of that cosmic mind as it is bestowed in a local universe by a Creative Daughter of the Third Source and Center.
The thoughts within each individualized nebulae can be shared with those of “like-mind”. Mind does run in similar channels because of its origin.
16.6.3 The fact of the cosmic mind explains the kinship of various types of human and superhuman minds. Not only are kindred spirits attracted to each other, but kindred minds are also very fraternal and inclined towards co-operation the one with the other. Human minds are sometimes observed to be running in channels of astonishing similarity and inexplicable agreement.
There are such beings as mind-energy manipulators who function on the morontia spheres to enable intercommunication between people. TUB tells us that this phenomenon is practically nonexistent on earth, which I interpret to mean, not entirely absent.
44:5.3 2. Mind-energy manipulators. These are the experts of intercommunication between morontia and other types of intelligent beings. This form of communication between mortals is practically nonexistent nonexistent on Urantia. These are the specialists who promote the ability of the ascending morontia beings to communicate with one another, and their work embraces numerous unique adventures in intellect liaison which are far beyond my power to portray to the material mind. These artisans are the keen students of the mind circuits of the Infinite Spirit.
However, there is nothing at all in TUB which suggests that thought waves linger past the time the personality is alive and actively creating them unless they are of high spiritual value, in which case they are drawn to the absolute mind circuit of the Third Source and Center by mind-gravity. But these thoughts are not individualized memories, they are concepts of pure value.
9:6.2 Much as the Father draws all personality to himself, and as the Son attracts all spiritual reality, so does the Conjoint Actor exercise a drawing power on all minds; he unqualifiedly dominates and controls the universal mind circuit. All true and genuine intellectual values, all divine thoughts and perfect ideas, are unerringly drawn into this absolute circuit of mind.
Memories are an individual experience. Human experience involves more than mind waves or thoughts, it involves the entire self, including the personality which unifies it.
102:4.2 What is human experience? It is simply any interplay between an active and questioning self and any other active and external reality. The mass of experience is determined by depth of concept plus totality of recognition of the reality of the external. The motion of experience equals the force of expectant imagination plus the keenness of the sensory discovery of the external qualities of contacted reality. The fact of experience is found in self-consciousness plus other-existences — other-thingness, other-mindness, and other-spiritness.
Those experiences with any value are duplicated by the Adjuster for posterity as memories and are the property of the soul and the Adjuster. They are not broadcasted. They are entirely passive after death until the individual personality is resurrected by the return of the Adjuster who activates them. Unresurrected individuals are absent personality and incapable of communicating (no one knows where the personality of a sleeping survivor goes. 112:5.15); resurrected personalities are forbidden to communicate with mortals from their native planet.
112:6.7 Mortal mind, prior to death, is self-consciously independent of the Adjuster presence; adjutant mind needs only the associated material-energy pattern to enable it to operate.But the morontia soul, being superadjutant, does not retain self-consciousness without the Adjuster when deprived of the material-mind mechanism. This evolving soul does, however, possess a continuing character derived from the decisions of its former associated adjutant mind, and this character becomes active memory when the patterns thereof are energized by the returning Adjuster.
112:3.7 Such dis-Adjustered souls are wholly and absolutely unconscious during the long or short sleep of death. There can be no exhibition of any sort of personality or ability to engage in communications with other personalities until after completion of survival. Those who go to the mansion worlds are not permitted to send messages back to their loved ones. It is the policy throughout the universes to forbid such communication during the period of a current dispensation.
It is possible to know the mind of others, but there is nothing said about the possibility to know the minds of dead people, minds which have ceased to function in connection with a personality. There has to be a consciousness of an active “other-than-self”. Both self-consciousness and “other-than-self” consciousness is a property of personality. Any lingering mind oscillations, as you propose, must still be attached to an active personality in order to be perceived by another personality’s consciousness.
102:4.1 Because of the presence in your minds of the Thought Adjuster, it is no more of a mystery for you to know the mind of God than for you to be sure of the consciousness of knowing any other mind, human or superhuman. Religion and social consciousness have this in common: They are predicated on the consciousness of other-mindness. The technique whereby you can accept another’s idea as yours is the same whereby you may “let the mind which was in Christ be also in you.”
16:8.5 Creature personality is distinguished by two self-manifesting and characteristic phenomena of mortal reactive behavior: self-consciousness and associated relative free will.
16:8.6 Self-consciousness consists in intellectual awareness of personality actuality; it includes the ability to recognize the reality of other personalities. It indicates capacity for individualized experience in and with cosmic realities, equivalating to the attainment of identity status in the personality relationships of the universe. Self-consciousness connotes recognition of the actuality of mind ministration and the realization of relative independence of creative and determinative free will.