Sensory Awareness Sequence
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Summary
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Once control has been initiated and turned into physical action, the governance mechanism needs feedback to determine whether the results meet expectations. This third of three parts shows how feedback is accomplished through collective sensory actions that begin with receptor biomolecules and proceed upward through the hierarchy.
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There are situations where ongoing governance-initiated actions are interrupted by events in a living system's external environment. Within this three-part framework, such new sensory inputs can be viewed as "unexpected results" from currently running scenarios which require the initiation of new scenarios.
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Relevant Sensory Information
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At every level of human living system, superorganism, organism and cell, the sustaining of life functions involves a centralized governance mechanism that performs control initiation to produce directed action. This is a homeostatic process that requires feedback through sensory awareness. At each living system level, it involves this general sequence:
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    •  Initiate and Perform Action
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    •  Sense Results and Compare with Expectations.
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    •  <if match> Initiate and Perform Next Action.
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    •  <if no match> Find and Initiate Appropriate Action Sequence.
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                  (see Scenario Control Unit diagram for details)
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At the cell level, many sensor control mechanisms are hard-wired to respond directly to inputs with immediate sensory action. In contrast, organisms and superorganisms have an additional decision-making step that evaluates certain kinds of sensory inputs to determine what action (if any) should be taken. In human organisms, the autonomic nervous system is essentially hard-wired in this regard, while many parts of the somatic nervous system are subject to the decision making process that is involved in learned, self-directed, voluntary behavior.
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Out of the myriad of sensory inputs, how does a governance mechanism focus on those inputs that are relevant to carrying out its self-directed scenario? Part of this selection is accomplished through structural specialization of lower-level organization units and their living system components, and part takes place as selection within the governance mechanism itself.
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Structural specialization for sensory information processing occurs at both the organization unit and living system levels. For example, the system that provides sensory input for an organism's visual awareness involves a hierarchy of specialized structure and action, from biomolecule (opsin protein), to organelle (retinal membrane), to cell (photoreceptor), and finally to organ (eye).
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Selection occurs within the governance mechanism where temporary linkage systems are established to recognize relevant sensory patterns. In superorganisms, these linkages come in the form of "indicators" that define relevant statistical patterns. In organisms, the linkages are manifested within the brain's neural network in the form of temporary subnetworks. In cells the decision step is missing, because actual response to incoming sensory patterns is hard-wired.
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Sensory Awareness Sequence Chart
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In this model, key differences in capability among hierarchy levels are indicated by extra rows in the table. At the 0rganism level and above, additional decision making steps are added to show where determination of relevance is interjected into the upward sensory flow.
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This chart shows the sequence of sensory events, working from bottom to top.

Sensory Awareness Sequence
Hierarchy Level Control Unit Sensory Action



Superorganism: Administrator emergent superorganism action plan
Superorganism: Administrator decide how to react
Superorganism: Administrator compare with expected sensory pattern
Superorganism: Implementor select relevant pattern
Superorganism: Implementor aggregate organization sensory patterns
Conveyance: situation indicators ↑↑↑↑↑↑↑↑
Organization: sensory activator transmit organization sensory pattern
Organization: evaluator decide how to react
Organization: comparator compare with expected sensory pattern
Organization: selector select relevant pattern
Organization: information aggregator aggregate organism sensory patterns
Conveyance: status reports ↑↑↑↑↑↑↑↑
Organism: Administrator transmit organism sensory pattern
Organism: Administrator decide how to react
Organism: Administrator compare with expected sensory pattern
Organism: Implementor select relevant pattern
Organism: Implementor aggregate organ sensory patterns
Conveyance: sensory patterns ↑↑↑↑↑↑↑↑
Organ: sensory activator transmit organ sensory pattern
Organ: information aggregator aggregate cell sensory patterns
Conveyance: sensory patterns ↑↑↑↑↑↑↑↑
Cell: Administrator transmit cell sensory pattern
Cell: Implementor aggregate organelle sensory patterns
Conveyance: chemical patterns ↑↑↑↑↑↑↑↑
Organelle: sensory activator transmit organelle sensory pattern
Organelle: information aggregator aggregate biomolecule sensory patterns
Conveyance: chemical patterns ↑↑↑↑↑↑↑↑
Biomolecule: receptor biomolecule transmit biomolecule sensory pattern



The next section on Living Systems Development shifts the focus from the operational view of living systems to an explanation of how they are created and developed. It begins with Life Cycle Framework.



©1995-2008 Ackley Associates   Last revised: 4/14/08
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