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  2. Physical object - Wikipedia

    en.wikipedia.org/wiki/Physical_object

    In natural language and physical science, a physical object or material object (or simply an object or body) is a contiguous collection of matter, within a defined boundary (or surface), that exists in space and time. Usually contrasted with abstract objects and mental objects. [1] [2]

  3. Phenomenalism - Wikipedia

    en.wikipedia.org/wiki/Phenomenalism

    In metaphysics, phenomenalism is the view that physical objects cannot justifiably be said to exist in themselves, but only as perceptual phenomena or sensory stimuli (e.g. redness, hardness, softness, sweetness, etc.) situated in time and in space.

  4. Glossary of biology - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_biology

    This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...

  5. Subject and object (philosophy) - Wikipedia

    en.wikipedia.org/wiki/Subject_and_object...

    There are two definitions of object. The first definition holds that an object is an entity that fails to experience and that is not conscious. The second definition holds that an object is an entity experienced. The second definition differs from the first one in that the second definition allows for a subject to be an object at the same time. [3]

  6. Physical system - Wikipedia

    en.wikipedia.org/wiki/Physical_system

    A physical system is a collection of physical objects under study. [1] The collection differs from a set : all the objects must coexist and have some physical relationship. [ 2 ] In other words, it is a portion of the physical universe chosen for analysis.

  7. Psychology - Wikipedia

    en.wikipedia.org/wiki/Psychology

    Psychology is the scientific study of mind and behavior. [1] [2] Its subject matter includes the behavior of humans and nonhumans, both conscious and unconscious phenomena, and mental processes such as thoughts, feelings, and motives. Psychology is an academic discipline of immense scope, crossing the boundaries between the natural and social ...

  8. Physicalism - Wikipedia

    en.wikipedia.org/wiki/Physicalism

    The word "physicalism" was introduced into philosophy in the 1930s by Otto Neurath and Rudolf Carnap. [6]The use of "physical" in physicalism is a philosophical concept and can be distinguished from alternative definitions found in the literature (e.g., Karl Popper defined a physical proposition as one that can at least in theory be denied by observation [7]).

  9. Stimulus (psychology) - Wikipedia

    en.wikipedia.org/wiki/Stimulus_(psychology)

    In this context, a distinction is made between the distal stimulus (the external, perceived object) and the proximal stimulus (the stimulation of sensory organs). [ 1 ] In perceptual psychology , a stimulus is an energy change (e.g., light or sound) which is registered by the senses (e.g., vision, hearing, taste, etc.) and constitutes the basis ...