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Título
The processing of semantic relatedness in the brain: Evidence from associative and categorical false recognition effects following transcranial direct current stimulation of the left anterior temporal lobe
Autor(es)
Materia
Semantic relatedness
False memory
Anterior temporal lobe
Transcranial direct current stimula tion (tDCS)
Clasificación UNESCO
61 Psicología
Fecha de publicación
2017
Editor
Elsevier
Resumen
[EN]A dominant view of the role of the anterior temporal lobe (ATL) in semantic memory is that it
serves as an integration hub, specialized in the processing of semantic relatedness by way of
mechanisms that bind together information from different brain areas to form coherent
amodal representations of concepts. Two recent experiments, using brain stimulation
techniques along with the DeeseeRoedigereMcDermott (DRM) paradigm, have found a
consistent false memory reduction effect following stimulation of the ATL, pointing to the
importance of the ATL in semantic/conceptual processing. To more precisely identify the
specific process being involved, we conducted a DRM experiment in which transcranial
direct current stimulation (anode/cathode/sham) was applied over the participants' left ATL
during the study of lists of words that were associatively related to their non-presented
critical words (e.g., rotten, worm, red, tree, liqueur, unripe, cake, food, eden, peel, for the critical
item apple) or categorically related (e.g., pear, banana, peach, orange, cantaloupe, watermelon,
strawberry, cherry, kiwi, plum, for the same critical item apple). The results showed that correct
recognition was not affected by stimulation. However, an interaction between stimulation
condition and type of relation for false memories was found, explained by a significant false
recognition reduction effect in the anodal condition for associative lists that was not
observed for categorical lists. Results are congruent with previous findings and, more
importantly, they help to clarify the nature and locus of false memory reduction effects,
suggesting a differential role of the left ATL, and providing critical evidence for under standing the creation of semantic relatedness-based memory illusions
URI
ISSN
0010-9452
DOI
10.1016/j.cortex.2017.05.004
Versión del editor
Colecciones
- GIMC. Artículos [71]