## Perception

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Last Update: 4/5/02
Copyright© 1996-2002. All rights reserved. See Terms of Usage.

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### Sensors

#$Sensor sensors **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> The collection of devices, biological or artificial, that gather information. Note: If a well-known named part of such an entity does the data-gathering, then generally only those parts are considered sensors, not the whole entity. E.g., even though a person gathers information, we generally do not consider them to be a sensor, but rather the sensors are their eyes, ears, skin, etc. In a context such as an ophthalmology convention, `well-known part' has a different binding, and they would consider just certain parts of the eye to be sensors.
> guid: bd589e5a-9c29-11b1-9dad-c379636f7270
> direct instance of: #$ExistingObjectType
> direct specialization of: #$PartiallyTangible
> direct generalization of: #$ElectroMagneticRadiationSensor #$VibrationThroughAMediumSensor #$TactileSensor

#$ElectroMagneticRadiationSensor electromagnetic radiation sensors **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> A subcollection of #$Sensor, namely those sensors that detect #$ElectromagneticRadiation.
> guid: bd589e97-9c29-11b1-9dad-c379636f7270
> direct instance of: #$ExistingObjectType
> direct specialization of: #$Sensor
> direct generalization of: #$Eye

#$VibrationThroughAMediumSensor vibration sensors **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> A subcollection of #$Sensor, namely those sensors that detect amplitude and frequency of vibrations through a physical medium. This includes ears, skin, and also artificial devices such as microphones, seismographs, etc. Note: #$Eyes are not #$VibrationThroughAMediumSensors because there need not be any physical medium for electromagnetic wave propagation. This is a somewhat close call, and indeed in past centuries most people believed that light propagated through aether, but what it comes down to is this: consider all the axioms that apply only to the structure, function, and operation, failure, etc. of a #$VibrationThroughAMediumSensor, and of that set how many hold true for eyes --- and the answer is No, most of them don't. So parsimony dictates that #$Eye not be a subcollection of #$VibrationThroughAMediumSensor.
> guid: bd58dbc2-9c29-11b1-9dad-c379636f7270
> direct instance of: #$ExistingObjectType
> direct specialization of: #$Sensor
> direct generalization of: #$Skin #$Ear

#$TactileSensor tactile sensors **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> A subcollection of #$Sensor, namely those sensors that operate by coming into physical contact with the object being perceived. #$TactileSensors are capable of perceiving properties such as texture, hardness, roughness, etc.
> guid: bd58db7f-9c29-11b1-9dad-c379636f7270
> direct instance of: #$ExistingObjectType
> direct specialization of: #$Sensor
> direct generalization of: #$Skin

#$Perceiving perceptions **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> A specialization of both #$SingleDoerAction and #$InformationTransferPhysicalEvent. Each instance of #$Perceiving is an event in which an agent (an instance of #$PerceptualAgent) acquires information through the exercise of its senses.
> guid: bd58c31c-9c29-11b1-9dad-c379636f7270
> direct instance of: #$DefaultDisjointScriptType #$TemporalStuffType
> direct specialization of: #$InformationTransferPhysicalEvent #$IntentionalMentalEvent #$SingleDoerAction
> direct generalization of: #$Perceiving-Voluntary #$Perceiving-Involuntary #$TouchPerception #$VisualPerception #$WatchingSomething #$SmellPerception #$EcholocationPerception #$TastePerception #$Hearing

#$TouchPerception touches (perceptions) **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> The collection of sensory-perceptual events (#$Perceivings) in which a #$PerceptualAgent perceives (acquires information) by touch.
> guid: bd58ea57-9c29-11b1-9dad-c379636f7270
> direct instance of: #$TemporalStuffType #$DefaultDisjointScriptType #$MammalCapabilityType
> direct specialization of: #$Perceiving #$ContinuousPhysicalContactEvent

#$SmellPerception smelling **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> The collection of sensory #$Perceivings in which a #$PerceptualAgent #$smells something and thereby acquires information about it.
> guid: bd58cb03-9c29-11b1-9dad-c379636f7270
> direct instance of: #$MammalCapabilityType #$DefaultDisjointScriptType #$TemporalStuffType
> direct specialization of: #$Perceiving

#$Hearing hearing **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> The collection of sensory #$Perceivings in which, by means of vibratory sensors, a #$PerceptualAgent #$hears something that is causing (or consisting of) sound waves, and thereby acquires information about it. See also: #$ListeningDeliberately, the subcollection of #$Hearing events in which the aural stimulus is intentionally attended to.
> guid: bd58dc32-9c29-11b1-9dad-c379636f7270
> direct instance of: #$MammalCapabilityType #$DefaultDisjointScriptType #$TemporalStuffType
> direct specialization of: #$Perceiving
> direct generalization of: #$ListeningDeliberately

#$VisualPerception glimpses **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> The collection of sensory #$Perceivings in which a #$PerceptualAgent #$sees something by means of an #$ElectroMagneticRadiationSensor detecting wavelengths of visible light, and thereby acquires information about it. Note: one eye is sufficient for #$VisualPerception, and limited short-distance #$DepthPerception, but `true' long-distance #$DepthPerception requires two eyes.
> guid: bd58f0b6-9c29-11b1-9dad-c379636f7270
> direct instance of: #$TemporalStuffType #$DefaultDisjointScriptType #$MammalCapabilityType
> direct specialization of: #$Perceiving
> direct generalization of: #$WatchingSomething

#$TastePerception tasting (perception) **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> The collection of sensory #$Perceivings in which a #$PerceptualAgent #$tastes some object, by means of the appropriate #$Sensor, and thereby acquires information about it.
> guid: bd58d619-9c29-11b1-9dad-c379636f7270
> direct instance of: #$TemporalStuffType #$MammalCapabilityType #$DefaultDisjointScriptType
> direct specialization of: #$Perceiving

#$EcholocationPerception echo location **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> #$EcholocationPerception is the collection of spatial #$Perceivings in which a #$PerceptualAgent (such as a bat or a submarine) generates sounds (potentially ultra- or sub- sonic in frequency), hears the sounds reflected from surfaces, and thereby acquires information about the position of other objects in its environment.
> guid: bd58fd57-9c29-11b1-9dad-c379636f7270
> direct instance of: #$TemporalStuffType
> direct specialization of: #$Perceiving

#$LookingForSomething searches (an attempt at found) **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> Searching for something with the intent to find it. Instances of failure to find the object of the search are still instances of #$LookingForSomething.
> guid: bd58fb33-9c29-11b1-9dad-c379636f7270
> direct instance of: #$DefaultDisjointScriptType #$TemporalStuffType
> direct specialization of: #$LookingForAThingOrTypeOfThing #$Perceiving-Voluntary

#$propositionsPerceived propositions perceived **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> (#$propositionsPerceived PERCEIVING PROP) means that in the #$Perceiving event PERCEIVING, the perceiver mentally grasps the proposition(s) PROP. E.g., ten people witness a particular car crash, and yet each one gets their own particular set of propositions which they later can relate to the police; there are ten separate #$Perceivings in this case, and each one has its own unique set of #$propositionsPerceived.
> guid: bd58b91c-9c29-11b1-9dad-c379636f7270
> direct instance of: #$BinaryPredicate

#$perceives perceived **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> (#$perceives AGENT OBJECT) means that AGENT is perceiving OBJECT. That is, AGENT is consciously aware of the presence of OBJECT via the functioning of at least one of her/his/its senses (e.g. sight, hearing, smell, etc). Precisely which tangible features of OBJECT AGENT apprehends depends in part on the sensory modality used (see the specializations of #$perceives). For example, if (#$sees AGENT OBJECT) then AGENT is aware of certain visible features of OBJECT (such as color or shape), whereas if (#$smells AGENT OBJECT) then AGENT apprehends certain aromatic features of OBJECT (such as its wearing L'air Du Temps perfume). Only tangible objects and situations involving such objects (see #$constituentInSituation) -- #$PartiallyTangibles, #$PhysicalEvents, and #$Configurations (which are #$StaticSituations involving partially tangibles) -- can be perceived.
> guid: bd588f41-9c29-11b1-9dad-c379636f7270
> direct instance of: #$PerceivingSlot
> direct specialization of: #$awareOf #$thinksAbout

#$sees saw (perceiving slot) **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> (#$sees AGENT OBJECT) means that the AGENT perceives the physical object or event OBJECT via the sense of sight. This implies that AGENT is sensuously aware of at least some of OBJECT's visible properties, such as its color, shape, or texture.
> guid: bd58e78d-9c29-11b1-9dad-c379636f7270
> direct instance of: #$PerceivingSlot
> direct specialization of: #$perceives

#$hears hears (perceiving slot) **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> (#$hears AGT OBJ) means that the #$PerceptualAgent AGT perceives sounds emananating from or as the result of OBJ. Events such as the shooting of a gun and tangible objects such as telephones are things which can emit audible sound and thus be perceived auditorily.
> guid: bd58da29-9c29-11b1-9dad-c379636f7270
> direct instance of: #$PerceivingSlot
> direct specialization of: #$perceives

#$tastes taste (perceiving slot) **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> (#$tastes AGENT OBJECT) means that AGENT perceives the (partially) tangible object or physical event OBJECT via the sense of taste. We can taste certain objects (such as lollipops) as well as, arguably, certain events (such as the finish of a wine).
> guid: bd58b29e-9c29-11b1-9dad-c379636f7270
> direct instance of: #$PerceivingSlot
> direct specialization of: #$perceives #$touchesDirectly-NotAsPart

#$smells smelled (perceiving slot) **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> (#$smells AGENT OBJECT) means that AGENT perceives the physical object or event OBJECT via the sense of smell. This implies that OBJECT releases (or involves the release of) a scent (see #$Odor) of which AGENT is sensuously aware. In the situation described by Joe smells the coffee brewing , both of the following are true: (#$smells Joe Coffee01) and (#$smells Joe CoffeeBrewingEvent09).
> guid: bd58fa66-9c29-11b1-9dad-c379636f7270
> direct instance of: #$PerceivingSlot #$CotemporalObjectsSlot
> direct specialization of: #$perceives

### Similarity In Attributes

#$identicalInAttribute identical in attribute **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> (#$identicalInAttribute THING1 THING2 ATTRIBUTE) means that the two things THING1 and THING2 have the same values of the #$AttributeType ATTRIBUTE. Here 'the same' means complete identity or very close resemblance -- what this means, and what the standard of closeness or identity is, depends on the context, but #$identicalInAttribute and #$differentInAttribute cannot both be correctly asserted of the same two things. See also #$resemblesInAttribute, and #$differentInAttribute.
> guid: c13b28fa-9c29-11b1-9dad-c379636f7270
> direct instance of: #$ComparisonWRTPredicate #$PartiallyCommutativeRelation #$TernaryPredicate

#$differentInAttribute different in attribute **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> (#$differentInAttribute THING1 THING2 ATTRIBUTE) means that the two things THING1 and THING2 do not have the same values of the #$AttributeType ATTRIBUTE. Here 'the same' could mean complete identity or close resemblance -- what this 'different' means, and what the standard of closeness or identity is, depends on the context, but #$differentInAttribute and #$identicalInAttribute cannot both be correctly asserted of the same two things. See also #$resemblesInAttribute, and #$identicalInAttribute.
> guid: bda14357-9c29-11b1-9dad-c379636f7270
> direct instance of: #$ComparisonWRTPredicate #$IndividualLevelPredicate #$PartiallyCommutativeRelation #$TernaryPredicate

#$resemblesInAttribute resembles in attribute **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> (#$resemblesInAttribute THING1 THING2 ATTRIBUTE) means that the two things THING1 and THING2 resemble each other in their values of the #$AttributeType ATTRIBUTE. Here 'resembles' means has a 'close' or similar value in that attribute -- what this means, and what the standard of closeness or similarity is, depends on the context. See also #$identicalInAttribute and #$differentInAttribute.
> guid: bfbb8404-9c29-11b1-9dad-c379636f7270
> direct instance of: #$ComparisonWRTPredicate #$PartiallyCommutativeRelation #$TernaryPredicate

### Sensory Reactions And Attributes And Urges

#$SensoryReactionType sensory reaction type **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> A collection of collections. Each instance of #$SensoryReactionType is a type of sensation (e.g., pain, pressure, pleasure, or warmth) that may be felt by instances of #$PerceptualAgent (q.v.). Instances of #$SensoryReactionType include #$LevelOfPain, #$LevelOfDiscomfort, and #$LevelOfRelaxationFeeling.
> guid: bd58e2b8-9c29-11b1-9dad-c379636f7270
> direct instance of: #$SecondOrderCollection
> direct specialization of: #$TotallyOrderedScalarIntervalType

#$PhysicalUrgeType urges **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> A collection of collections, and a specialization of #$SensoryReactionType. Each instance of #$PhysicalUrgeType is a type of urge (to do something) that animals have. Instances of #$PhysicalUrgeType include the collections #$UrgeToSneeze, #$UrgeToScratch, and #$LevelOfHunger.
> guid: bd5886eb-9c29-11b1-9dad-c379636f7270
> direct instance of: #$SecondOrderCollection
> direct specialization of: #$SensoryReactionType

#$sensoryResponse sensory response **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> (#$sensoryResponse EVT ROLE SENSTYPE DEGREE) means that a #$PerceptualAgent who participates in the #$PhysicalEvent EVT in the manner ROLE has an immediate sensory reaction of the #$SensoryReactionType SENSTYPE with DEGREE of intensity. For example, if TOUCH is a touching-something-very-cold action, then (#$sensoryResponse TOUCH #$doneBy #$LevelOfDiscomfort #$Positive) is true --- i.e., whoever does that touching action is likely to feel some discomfort.
> guid: bd58af5a-9c29-11b1-9dad-c379636f7270
> direct instance of: #$QuaternaryPredicate #$FunctionalPredicate

#$feelsSensationInRegionAtLevel feels sensation in region at level **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> The Cyc predicate #$feelsSensationInRegionAtLevel is used to represent localized somatic feelings of a perceptive being. (#$feelsSensationInRegionAtLevel AGT BODYPARTTYPE SENS DEGREE) means that the #$PerceptualAgent AGT feels on its body, in the area specified by BODYPARTTYPE, the sensory reaction SENS with an intensity of DEGREE. For example, Cyc's knowledge base contains an assertion that the very same part of one's body doesn't feel both hot and cold at the same time. #$feelsSensationInRegionAtLevel can also be used to state symptoms, e.g., when you're feverish, your head feels hot. See also #$SensoryReactionType.
> guid: bd58a3d8-9c29-11b1-9dad-c379636f7270
> direct instance of: #$FunctionalPredicate #$QuaternaryPredicate

#$feelsSensation feel (functional predicate) **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> (#$feelsSensation BLO SENSTYPE DEGREE) means that the #$BiologicalLivingObject BLO feels a sensation of type SENSTYPE with the intensity DEGREE. #$feelsSensation may be used to describe an organism's feeling during a particular time period or activity (see #$holdsIn); for example, we might say of a particular person who is doing yoga: (#$holdsIn `TodaysYoga' (#$feelsSensation Prakriti #$LevelOfRelaxationFeeling #$VeryHigh). Note that the first argument of #$feelsSensation could also be filled by a part of an organism, e.g., `John F. Kennedy's head'; however, by using the more specialized predicate #$feelsSensationInRegionAtLevel, we can express localized feelings without reifying each such region.
> guid: bd588025-9c29-11b1-9dad-c379636f7270
> direct instance of: #$FunctionalPredicate #$TernaryPredicate

#$urgeSatisfied urge satisfied **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> (#$urgeSatisfied EVT URGETYPE) means that the sensory event EVT satisfies an instance of a physical urge of type URGETYPE. Use the predicate, #$urgeTypeSatisfied, to stateg rules about what sorts of actions relieve what sorts of urges. E.g., scratching relieves an #$UrgeToScratch.
> guid: bd5886ab-9c29-11b1-9dad-c379636f7270
> direct instance of: #$BinaryPredicate

#$SensoryAttribute sensory information **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> A collection of attributes. Each instance of #$SensoryAttribute is a sensory quality detectable by sentient beings. #$SensoryAttribute includes colors, odors, tastes, sounds, and feels, as well as the various feelings represented by its subset #$InternalSensoryAttribute. Examples of #$SensoryAttribute: #$Rough, #$Smooth, #$Slimy, #$GoldColor, #$VeryBrightLightIntensity, (#$HighAmountFn #$NoiseLevelAttribute).
> guid: bd590b26-9c29-11b1-9dad-c379636f7270
> direct instance of: #$ObjectType
> direct specialization of: #$AttributeValue
> direct generalization of: #$LevelOfPain

#$InternalSensoryAttribute internal sensory attribute **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> A specialization of #$AttributeValue. Each instance of #$InternalSensoryAttribute is a state of a sentient being in which it experiences within itself some somatic or psycho-somatic feeling, urge, or impulse. An internal sensory attribute differs from an `external' one in that the sensing being refers the former to itself and the latter to external objects. #$InternalSensoryAttribute includes states of feeling hungry, thirsty, tired, or in pain, as well as various bodily urges such as the urge to sneeze, burp, or urinate. Sensory attributes that may occur with more or less intensity are represented by indicating a #$LevelOfPain, #$LevelOfPhysicalPleasure, #$LevelOfStress, and so on.
> guid: bd58e809-9c29-11b1-9dad-c379636f7270
> direct instance of: #$ObjectType
> direct specialization of: #$AttributeValue
> direct generalization of: #$LevelOfExhaustion #$LevelOfDiscomfort #$UrgeToSneeze

Caveat: The following is just a representative sample of the many reaction types and physical urges that are contained in the entire current Cyc knowledge base. These concepts are more specific than the ``treeline'' where we decided what concepts to release, at this time, but we felt that readers would greatly benefit by seeing at least a few examples of these things, so here they are:

#$LevelOfDiscomfort levels of discomfort **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> An #$AttributeType whose elements represent the various levels of discomfort that may be felt by a perceptual agent. Typically, the agent must be a living entity. Typically, the sensation is an internal feeling, and is more of a long-lasting dull ache than a sharp pain (see: #$LevelOfPain).
> guid: bd588a7f-9c29-11b1-9dad-c379636f7270
> direct instance of: #$SensoryReactionType
> direct specialization of: #$ScalarInterval #$AnimalPhysiologicalAttribute
> direct generalization of: #$LevelOfPain

#$LevelOfPain pains (physiological attributes) **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> An #$AttributeType whose elements represent the qualitative levels of pain that may be felt by a perceptual agent. Although the agent is often a living entity, this is not required. The source of the pain could be either external or internal; in either case, the subjective feeling is generally `sharper' and hopefully shorter-lived than just `a feeling of discomfort' (see: #$LevelOfDiscomfort.)
> guid: bd58ae66-9c29-11b1-9dad-c379636f7270
> direct instance of: #$SensoryReactionType
> direct specialization of: #$LevelOfDiscomfort

#$LevelOfRelaxationFeeling level of relaxation **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> An #$AttributeType whose elements represent the qualitative levels of comfort/relaxation/ease that an animal may have. This feeling is generally internal, and relatively long-lasting (compared with, e.g., the duration of a painful twinge.) Any positive degree of this #$LevelOfRelaxationFeeling is incompatible with a high level of #$MuscleTenseness, a high #$LevelOfPain, or a high #$LevelOfDiscomfort.
> guid: bd58d7e3-9c29-11b1-9dad-c379636f7270
> direct instance of: #$SensoryReactionType
> direct specialization of: #$EnvironmentalAttribute

#$LevelOfExhaustion exhaustion **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> An #$AttributeType whose elements represent the qualitative degrees of exhaustion that an animal may feel. For instance, the assertion (#$feelsSensation #$JimiHendrix #$LevelOfExhaustion #$Positive), means that Jimi Hendrix feels some degree of physical exhaustion (a not unlikely state of affairs after one of his guitar solos). Note that this predicate is NOT properly used for purposes such as to describe metal fatigue, or the depletion of natural resources.
> guid: bd58a0aa-9c29-11b1-9dad-c379636f7270
> direct instance of: #$SensoryReactionType
> direct specialization of: #$AnimalPhysiologicalAttribute

#$UrgeToScratch itches **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> This is a #$Collection of physical urges of a certain type, namely the urges that animals have to scratch an itch (and their accompanying internal sensations.)
> guid: bd58a509-9c29-11b1-9dad-c379636f7270
> direct instance of: #$SensoryReactionType
> direct specialization of: #$AnimalPhysiologicalAttribute

#$UrgeToSneeze urge to sneeze **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> This is a #$Collection of physical urges of a certain type, namely the urges that animals have to sneeze (and their accompanying internal sensations.)
> guid: bd58a54a-9c29-11b1-9dad-c379636f7270
> direct instance of: #$SensoryReactionType
> direct specialization of: #$AnimalPhysiologicalAttribute

The following constants apply to many areas beyond perception. Once a documentation file corresponding to cognitive processes is released, this constant should be placed in such a file. Perhaps the scope of this file should be broadened to include the following constant.

#$AtLeastPartiallyMentalEvent mental events

> A collection of events. Each instance of #$AtLeastPartiallyMentalEvent is an event involving the mental functions of a participant or group of participants (see #$actors) in that event. The collection includes such things as dreaming, perceiving, sensing, theorizing about something, having a realization, making a decision, building something, designing something, and consciously carrying out a task. Note that the above list includes both purposeful events and non-purposeful events that involve mental functions. Note also that any event that has a mental component is also an instance of this collection, so that events like preparing lunch would be classified as instances of #$AtLeastPartiallyMentalEvent. In entering knowledge, it is almost always possible and preferable to use one of the specializations of #$AtLeastPartiallyMentalEvent. If an event seems mostly mental in nature, modulo neurons firing and related brain activity, use #$StrictlyMentalEvent or one of its specializations. If it essentially involves both mental and physical activity, see #$CompositePhysicalAndMentalEvent or #$PurposefulPhysicalAction. For mental events that are intentionally and purposefully performed, see the specialization #$PurposefulMentalActivity.
> guid: bd588615-9c29-11b1-9dad-c379636f7270
> direct instance of: #$TemporalStuffType
> direct specialization of: #$AnimalActivity #$MentalSituation
> direct generalization of: #$CompositePhysicalAndMentalEvent #$IntentionalMentalEvent #$StrictlyMentalEvent #$PurposefulAction #$Learning

#$Thinking thought **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> A specialization of both #$IntentionalMentalEvent and #$StrictlyMentalEvent. Each instance of #$Thinking is a mental process in a general sense that assumes consciousness, has some propositional content and differs from experiencing a sensation or emotion. The collection includes both atomic mental events of having a single thought, with propositional content, and composite mental events involving the processing of thoughts. Thinking need not necessarily be purposeful mental activity. Obsessive thoughts and thinking of a solution to a math problem would both be examples of events that belong in this collection.
> guid: bd58875c-9c29-11b1-9dad-c379636f7270
> direct instance of: #$DefaultDisjointScriptType #$TemporalStuffType
> direct specialization of: #$IntentionalMentalEvent #$StrictlyMentalEvent

#$MentalAttribute mental attributes **COMMENT NOT REVIEWED** **GAFs NOT REVIEWED**

> A specialization of #$AttributeValue. Each instance of #$MentalAttribute is an attribute which pertains to an agent's mental state or mental ability. Instances of #$MentalAttribute include #$HighIntelligence, #$VisualAwareness, and #$InattentiveMentalActivityLevel.
> guid: bd58833e-9c29-11b1-9dad-c379636f7270
> direct instance of: #$ObjectType
> direct specialization of: #$AttributeValue
> direct generalization of: #$TemperamentAttribute

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