Extramental

As an extramental (lat. extra, "outside, outside" and mens, "mind, reason, reason"), in the transcendent sense extracranial (from Latin cranium, "skull"), and how they exist outside and independent of a conscious observer. For this purpose, the real causes (the thing-in-itself) of all sensuous impressions which manifest themselves in consciousness, as well as any areas and processes in the world which escape themselves consciously (the proverbial back of the moon), or perceived by no observer (like the sound of a tree falling to the ground in the forest).

The assumption of extra-mental domains implies ontological realism, and is still represented today in the most plausible, but not necessarily intuitive, form, that only John's primary features can be attributed to these areas, H. (pure quantities, such as motion, force, voltage, or mass), and as such are described by physics. While secondary qualities, such as color, smell, or sound (as a sensation), are themselves alone in the subjective experience of consciousness, are essentially dependent on it, and have no correspondence, and only their causes

The assumption of an extra-mental reality, on the other hand, is incompatible with most variants of idealism.

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