Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/19624
Appears in Collections:Psychology Journal Articles
Peer Review Status: Refereed
Title: Is the N400 effect a neurophysiological index of associative relationships?
Authors: Ortu, Daniele
Allan, Kevin
Donaldson, David
Contact Email: d.i.donaldson@stir.ac.uk
Keywords: N400
Associative relationships
Semantic relationships
Priming
ERPs
Issue Date: Aug-2013
Publisher: Elsevier
Citation: Ortu D, Allan K & Donaldson D (2013) Is the N400 effect a neurophysiological index of associative relationships?, Neuropsychologia, 51 (9), pp. 1742-1748.
Abstract: The N400 is one of the most widely studied ERP components and has come to be viewed as an index of the semantic processing that relates distinct stimuli. In this study, we examine whether the N400 is sensitive to the associative relationship between distinct stimuli, and not the degree to which the stimuli share semantic features. We used previously established norms to parametrically vary the strength of linguistic association between words within word-pairs, while holding constant their degree of semantic congruency. This manipulation allowed us to compare N400s elicited by unrelated prime-target word-pairs (e.g. mirror-thumb) with N400s generated by related prime-target word-pairs of either moderate (e.g. camera-lens) or high (e.g. cherry-tree) degrees of association. We observed that larger N400 effects occurred for highly associated versus moderately associated pairs despite the fact that no differences in terms of semantic congruency existed between pairs belonging to the highly and moderately associated conditions. These findings demonstrate that the N400 can be modulated by associative relationships quite independently of semantics, and suggest that the N400 effect reflects processes sensitive to the contiguity of distinct elements within one's past experience and not their semantic properties per se.
Type: Journal Article
URI: http://hdl.handle.net/1893/19624
DOI Link: http://dx.doi.org/10.1016/j.neuropsychologia.2013.05.003
Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: University of Stirling
University of Aberdeen
Psychology

Files in This Item:
File Description SizeFormat 
neuropsych 2013.pdf954 kBAdobe PDFUnder Embargo until 31/12/2999     Request a copy

Note: If any of the files in this item are currently embargoed, you can request a copy directly from the author by clicking the padlock icon above. However, this facility is dependant on the depositor still being contactable at their original email address.

This item is protected by original copyright



Items in the Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

If you believe that any material held in STORRE infringes copyright, please contact library@stir.ac.uk providing details and we will remove the Work from public display in STORRE and investigate your claim.