Ross indexed the following pages under the keyword: "Essential variables".

Summary: Allbutt on a type of man. Essential variables sometimes not related to critical states Critical surface if not related to essential variables Pain patient insensitive to pain 2831 2832

Essential variables relation to multistable system DAMS (Dispersive and Multistable System) [73]: Another form, with the essential variables' limits separate from the step-functions', 2955. 2955 2956

Environment relation to essentail variables Essential variables relation to environment 2959 2960

Environment relation to essentail variables Essential variables relation to environment Summary: Relation of essential variables to system of part-functions. 3087 3088

Essential variables and pleasure Pleasure learning by pleasure Statistical mechanics density in phase Stochastic processes differential equations Summary: I am now ready to account for learning by 'pleasure'. Statistical mechanics density in phase Stochastic processes differential equations 3131 3132

Essential variables must be many Natural Selection [15]: Cumulative, additive, adaptation 3141. Summary: To get cumulative adaptation, the environment must be traversed by a variety of paths. (4546, 4215) DAMS (Dispersive and Multistable System) [12]: DAMS should have plenty of informative feedback, 3142. 3141 3142

Environment REVIEW Essential variables REVIEW OF Multistable system REVIEWED DAMS (Dispersive and Multistable System) [94]: Review of relations between multistable system, environment, and specialised essential variables, 3281. 3281 3282

Summary: Equilibria in systems of part-functions. (See below) Essential variables and neutral equilibrium 3493 3494

Code inverse Environment as transducer Transducer inverse Transformation inverse Oddments [36]: If the environment is operator E, the brain must become -E-1. 3499. Summary: If the environment is E the brain must become -E-1 4294 Environment must be non-singular Essential variables information from Step function carries information 3499 3500

Summary: Designing DAMS. Essential variables how many is optimal? Summary: More complexity means more essential variables, which then have all to be satisfied. 3515 3516

Summary: Improvement by the purely empirical is as old as industry. Environment relation to essential variables Essential variables relations to environment etc. 3517 3518

Summary: How to arrange DAMS. DAMS can react to a 'signal' or 'symbol'. Environment REVIEW Essential variables REVIEW OF Summary: Index to Essential Variables since 3289. 3582 Summary: Reduction of all variables to a common form is of no importance. Money reduction of all social variables to 3521 3522

Essential variables relations to environment etc. DAMS (Dispersive and Multistable System) [43]: Environment, Essential Variables, and network, 3559. 3559 3560

Summary: Infinitesimal displacements activate a unique set of variables. (3599) Environment reviewed again Equilibrium multistable system around state of The Multistable System [81]: In a system of part-functions, all infinitesimal displacements, in whatever direction, from a resting state activate the same set of variables, 3581, 3599. Environment reviewed again Essential variables Reviewed again 3581 3582

Environment reviewed again Essential variables Reviewed again Environment reviewed again Essential variables Reviewed again 3583 3584

Environment reviewed again Essential variables Reviewed again Environment reviewed again Essential variables Reviewed again 3585 3586

Environment reviewed again Essential variables Reviewed again Environment reviewed again Essential variables Reviewed again 3587 3588

Environment reviewed again Essential variables Reviewed again Environment reviewed again Essential variables Reviewed again 3589 3590

Conflict arrangement for Environment reviewed again Essential variables Reviewed again Psychiatric applications [16]: An arrangement possibly leading to conflict, 3591. Environment reviewed again Essential variables Reviewed again 3591 3592

Environment reviewed again Essential variables Reviewed again Summary: How essential variables, environment, and network are to be arranged in organism and DAMS. 3603, 3825, 4600, 4613 - there is no general solution, 4832, 5737 Environment reviewed again Essential variables Reviewed again Signal multistable system responding to 3593 3594

Summary: How the cortex perhaps gets selective disruption of wrong arcs. 3825, 4600, 4831 Essential variables possible mode of action Learning imprinting Learning serial learning DAMS (Dispersive and Multistable System) [47]: Possible mode for action of essential variables, 3603. 3603 3604

Summary: Habituation. 3837, 3842, 3856, 4526 Dispersion defined by information Independence definition Information and independence and dispersion Essential variables possible mode of action 3824 3825

Summary: A likely mechanism for the conditioned reflex. 3897 Essential variables limits and conditioned reflex The Conditioned Reflex [41]: Another contribution to the basic mechanism 3894. Primary operation defined 3894 3895

Activity positive effect of Memory filling of Oddments [32]: Prolonged activity of a parameter makes the system's behaviour tend to depend more on the parameter's particular line of behaviour than on the system's particular initial state, 3956. Essential variables dominating a system The Multistable System [32]: Properties of each part depend more and more, as time goes on, what happens to it rather that on which initial state it started from. 3957. 3956 3957

Part-function lock and key as example Summary: Examples of systems with part functions. Essential variables complexity of 4016 4017

Summary: If a system is very large and its lines of behaviour very long, the 'later' ends of the lines must differ from the 'earlier' in some 'Darwinian' way. (Note on 4055) 4099, Review 4141, 4201 Summary: Essential variables. 4161 Essential variables complexity of 4052 4053

Essential variables use variation amplifier DAMS (Dispersive and Multistable System) [76]: The self locking, ultrastable system deduced from four postulates. DIAGRAM 4158. Amplifier use of in ultrastability Variety necessity of 4158 4159

Summary: Building an exceptionally un-intelligent machine. Oddments [41]: How to build an exceptionally unintelligent machine, 4260. Summary: Building a machine to display its powers of self adjustment. Essential variables various orders DAMS (Dispersive and Multistable System) [60]: How to design a self-adapting machine, [SHORTHAND] how to make it evolve, 4261. 4260 4261

Summary: Multiple, competing, essential variables lead to the same problem, whether occurring in one person or scattered among many. 4289 Conflict between essential variables Essential variables conflict between Essential variables dominance between Levels of essential variables Society [47]: The essential variables of the people in a society are as functionally joined as if in the person, 4284. The Multistable System [75]: Levels between essential variables. 4284. Psychiatric applications [26]: Conflict between two essential variables, 4284. Intelligence as selection Selection intelligence as 4284 4285

Habituation theory of Essential variables relation to selection amplifier Habituation theory of 4532 4533

Summary: How much of a field should be known? Essential variables in Darwinian system Evolution reviewed Natural Selection [80]: Relation between multistable systems and evolving genetic system reviewed, { 4606 - 4620 } Summary: In Darwinian evolution; the part of essential variables is played by those parts whose disequilibrium leads to widespread disturbance around them. Evolution reviewed Natural Selection [80]: Relation between multistable systems and evolving genetic system reviewed, { 4606 - 4620 } 4608 4609

Summary: "Maximising profits" as a "keeping within limits." Essential variables maximising Society [61]: When limits of essential variables are 0 and + 8, and random disturbances are likely, best strategy is to make the value maximal, as with profits, 4642. Society [62]: Self locking by, Standing Orders 4642. Summary: Self-locking in society. Group (mathematical) not all science Self-locking system in Parliament Stable set in science Standing Orders self-locking Personal notes [20]: Reviews of "Design": 4258 Observer, 4309 Citizen, 4380 British Medical Journal, 4423 Journal of Consulting Psychology, 4423 McCulloch, 4446. Hibbert Journal, 4595 Galaxy, 4595 Scientific American, 4643 Occupational Psychology. 4642 4643

Summary: Probability of district balls getting into same cells. 5830 Summary: Abstract form of a "teacher". 5430 Essential variables sequenced by teacher Training abstract nature of 5382 5383

Summary: A trajectory may be reducible (into parts that are unconditionally good or bad). 5462, 5532, 5537, 5573, 5675 Accumulation (of adaptations) reducibility implied Essential variables when reducible Reducibility of outcome 5430 5431

Summary: Reducing major Good to minor goods. 5537, 5532, 5578, 5626 Essential variables when reducible Introduction to Cybernetics reviews Personal notes [31]: Reviews of the "Introduction to Cybernetics". 5531, 5582, 5630, 5748. 5530 5531

Summary: From essential variables to Grand Outcome, via trials. 5573, 5642 Essential variables and trials Immediate effect equals "cause" Trial and error and essential variables Cause and feedback Discrimination requires information Feedback discriminative needs information Immediate effect and feedback Requisite Variety, Law of in discriminative feedback Supplementation in discriminatative feedback 5538 5539

Selection requires information Summary: No general principle can be sufficient guide when selection must be done; some actual channel is also necessary. 5585 Arc selection of Essential variables discrimination by Feedback methods for discrimination 5548 5549

Summary: The distinction between aggression and non-aggression corresponds, respectively, to having or not having a regulator. 5694 Regulation as aggression Essential variables abstract form Machine essential variables of machine Survival and essential variables, abstractly 5572 5573

Summary: The "essential variables" to a machine with input are those other parameters to it whose change would alter its canonical representation. Essential variables to a machine Machine not equal to 'system' 5576 5577

Summary: "System" and "machine with input" are very different. Essential variables sub-essential variables found by system Goal and sub-goal Part-function and sub-goal Sub-goal found by system Summary: Essential variables in Multistable System 5601, 5625, 5642 5578 5579

Summary: From iterated systems to the multistable. 5612 Essential variables when reducible The Multistable System [121]: Newer theory of multistable system. 5601 et seq. 5600 5601

Essential variables when reducible 5616 5617

Summary: Why have arcs that are dynamic systems? Essential variables set theory 5626 5627

Summary: One unit for adaptation (in Multistable System) may comprise many portions (arcs) in the cortex. 5653, 5746 The Multistable System [125]: One unit for adaptation (one "arc") may comprise many portions of both cortex and environment. 5634.3. Summary: Optimal duration of trial; optimal time back to make disruptive feedback work. 5642 Essential variables maximal speed Trial and error maximal speed 5634 5635

Essential variables vital variables Survival and vital variables Vital variables defined Summary: Distinguish between Essential and Vital variables. 5642 5643

Essential variables within random machine Vital variables in random system 5646 5647

Summary: Mechanisms for memory may well vastly outnumber those for action Memory may far exceed action Summary: Essential variables for adaptation by accumulation. Accumulation (of adaptations) essential variables for Essential variables for accumulation of adaptation 5766 5767

Summary: Another example of how a large, and irreducible, quantity of information may be necessary. Essential variables outside organism 5810 5811

Summary: A variable may be essential to an organism and yet outside of it. Computing machines spontaneous generation in Intelligence spontaneous generation Essential variables abstractly Life spontaneous generation in a computer Spontaneous generation of life in computer Survival within computer Transformation adaptation to any 5812 5813

Adaptation demands parts Essential variables evolution of 5962 5963