Trust the teller, not the tale, said D. H. Lawrence, who did his best writing (and his best was amazing) when he turned his spiritual obsessions into the sensory matter of fiction and left the dogmatic preaching behind.
"Pure" a priori cognitions are those that in addition to being a priori or absolutely independent of all sensory impressions and/or contingent natural objects or facts, also contain no sensory matter whatsoever (B3).
The sensible world, or the world of appearances, is constructed by the human mind from a combination of sensory matter that we receive passively and a priori forms that are supplied by our cognitive faculties.
In a characteristic move, Ayer now contended that sense-data should be understood not as part of the furniture of the world but as conceptual constructs, or logical fictions, that allow one to distinguish between sensory experience and matter and between appearance and reality.
It serves as a substrate for the sensory faculties, their matter "disposed" to receive sensory perceptions.
The aging brain undergoes physical and functional changes including a decline in processing speed, central sensory functioning, white matter integrity, and brain volume.
Cerebral white matter lesions may interrupt frontal lobe circuits responsible for normal gait and balance or they may interfere with long loop reflexes mediated by deep white matter sensory and motor tracts [ 15].
Blood flow in the spinal cord white matter and roots is about half that measured in spinal cord gray matter and sensory ganglia [ 143, 144, 170, 205], reflecting these regional differences in capillary density.
As might be expected, nerve blood flow is comparable to that measured in spinal cord white matter and roots, which is about half that of flow in spinal cord gray matter and sensory ganglia [ 143, 149, 170, 205].
This phenomenon was more pronounced in the gray matter of sensory cortex).
