Back to Cognitive Psych Home pageBackto TopicsMODELS OF MEMORY

THEATKINSON-SHIFFRIN MODEL

DESCRIPTION OF THE MODELA structural design that suggests 3 storagedevices (places); Sensory Store, Short-Term Memory (STM), Long-Term Memory(LTM).

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(click for graphic)(fromBest, Cognitive Psychology,1995)Indevelopment moves via these devices underthe control of assorted cognitive procedures (attention, rehearsal, and so on.).The distinctions among the three frameworks ismade on the basis of 4 qualities which arised from the literature;capacity, duration, type of code, and also device of loss.RESEARCHThe version originated as a means of explaining someof the early on study findings which said for a duplex concept.The research by Kintsch and also Buschke (1969), for instance,shows that items at the beginning of a list are coded semantically as characteristicof LTM while items at the end are coded acoustically (STM).In time, but, the distinctions marking theboundaries of the structures have begun to blur in more current research.CURRENT STATUSAfter having been abandoned for a while in favorof the Levels-of-Processing design, most civilization have actually returned to some formof duplex theory.

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THELEVELS-OF-PROCESSING APPROACH

DESCRIPTION OF MODELThis approach suggests that deeper levels of processingdevelop much better retention than shallow levels (Craik & Lockhart, 1972).Depth is interpreted in regards to definition -- Adimension which starts with the physical attributes, via verbal-acoustic,to semantic.Leads to difference between elaborative rehearsaland maintenance rehearsal.Explained by the fact that as you go from shallowto deep processing, more web links to other elements in memory are establimelted.Can be understood in term of Distinctiveness andelaboration.RESEARCHTheory was supported in a series of timeless studiese.g., Craik & Lockhart, 1972; Craik & Tulving, 1975.Study by Palmere et al. (1983) supports the roleof elaboration.Also feasible to interpret literature on The Self-ReferenceEffect in terms of elaboration.CURRENT STATUSThe theory was quite well-known for a while as areplacement for the Duplex Theory of memory.Lost condition as a result of a meta-systemic trouble,a difficulty of circularity--there is no independent way of defining depthof processing.In the finish, the Depth of Processing Model wasreincorporated through the Duplex Theory.

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TULVING"SMODEL

DESCRIPTION OF THE MODELTulving"s (1972) version focuses on the nature ofthe product that is stored and distinguishes 3 kinds of memory asedon content.EPISODIC MEMORY stores indevelopment about whenoccasions happened and also the partnership in between those events. Relates to personalexperience.SEMANTIC MEMORY is the arranged understanding aboutthe people. Basically all the "facts" we have actually collected.PROCEDURAL MEMORY entails discovering how to "do"something. Relates to ability finding out, the relations in between stimuli andmotor actions.A demonstration of the distinction between episodicand semantic memory from Matlin"s, Cognition (1994)(click here)RESEARCHUnderwood et al. (1978) tested 200 college studentchild 28 actions of episodic memory and 5 actions of semantic memory. Inregards to performance, actions in between the two kinds of memory were unassociated.Shoben et al. (1978) found that variables knownto affect semantic memory affected performance on a semantic memoryjob however not an episodic memory job. However, there is about an equalamount of contrary proof. See Ratcliff & McKoon (1978) which foundthat episodic memory emphasizes conceptual fairly than temporal relationshipsas said by Tulving.Ratcliff (1986) uncovered that episodic memory couldbe recalled rather easily.Nueroscience research study is additionally not conclusive.CURRENT STATUSIn basic, researchers are cynical about Tulving"sdifference in between episodic and also semantic memory and it has not been retained.The distinction between these 2 and proceduralmemory, but, is being preserved as a helpful one supported by a considerablebody of evidence.

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PARALLELDISTRIBUTED PROCESSING MODELS

DESCRIPTION OF THE MODELCognitive procedures consisting of memory can be conceivedas netfunctions in which the elements exhilittle multiple web links.These have the right to be abstract in nature wbelow nodes ina theoretical network-related are connected by associative links, or biologicalin nature wbelow neurons (or neuron choose units) are connected.Based on cognitive science assumptions that intelligentdevices have the right to be constructed out of dumb aspects. The intelligence is in the relationships.Units in the system, through their many kind of web links,might influence various other devices with excitation or inhibition.Representations (knowledge, memory) exist in theresultant patterns of activation that take place in the network-related.Local processes offering increase to these patternshappen in parallel at distributed sites.Memory storage is content addressable.Eextremely brand-new occasion transforms the toughness of the connectionsamong the appropriate systems.The last three qualities account for ourcapacity to reconstruct product on the basis of infinish or faulty information.RESEARCHA extremely abstract and also theoretical technique (analogousto theoretical physics) that might be so substantially ahead of existing methodologyregarding make hypothesis testing hard.Used mainly to define previously literature.

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CURRENT STATUSAn amazing brand-new advance which we have actually juststarted to explore.BACK TO TOPBack to Cognitive Psych Home pageBackto Topics