Start studying Models of Semantic Memory. Information is simply rehearsed in the STM and if rehearsed sufficiently is transferred to LTM. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Each concept is represented by a NODE or a location in the network and there are LINKS or associations which connect NODES. According with a featural organization of semantic memory, this work is aimed at investigating, through an attractor network, the role of different kinds o Each store had a specific and relatively inflexible function. (2009) trace this tradition, which they called the distributional tradition, back to Wittgenstein and Firth in the 1950s. Semantic memory is a netlike organization of concepts in memory with many interconnections. Andrews et al. There are SUPERORDINATE LINKS and MODIFIER LINKS Models of semantic memory Network models Collins and Quillian (1969) proposed that semantic knowledge is underpinned by a set of nodes, each representing a specific feature or concept, which are all connected to one another. The model suggests that Hebbian rules, with adjustable post-synaptic thresholds, can provide a reliable semantic representation of objects exploiting the statistics of input features. Distributional models of semantic memory A second class of models starts from the idea that the meaning of a target concept to which a word refers can be derived from the words often co-occurring with it. Multistore Model - Atkinson and Shiffrin (1968) Akinson and Shiffrin suggested that memory was comprised of three separate stores, the Sensory Memory Store, the short-term memory and the long-term memory. Similarly the authors of semantic network models note the difficulty in assuming neatly structured graphs model mental conceptual organisation: ‘Dictionary definitions are not very orderly and we doubt that human memory, which is far richer, is even as orderly as a dictionary’ (Collins and Quillian 1969). The models are grouped into those that are (1) cognitive models, where the neural data are used to reveal dissociations in semantic memory after a brain lesion occurs; (2) models that incorporate both cognitive and neuroanatomical information; and (3) models that use cognitive, neuroanatomic, and neurophysiological data. NETWORK MODELS (TLC - Quillian/ Spreading Activation - Collins & Loftus).


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