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Word frequency effects and inter-item associations : a study of the N400

Åberg, Kristoffer (2006)
Department of Psychology
Abstract
High frequency words are easier to recall compared to low frequency words in lists of only one frequency-range. This effect disappears when words of different frequencies are mixed in a list. Word frequency effects have often been assumed to rely on associations between words. The relationship between word frequency and associations was investigated by controlling associations using Latent Semantic Analysis (LSA) in an experiment of free recall. Event-related potentials (ERPs) were recorded and analysis focused on the N400 component. Behavioral results support the assumption that high frequency words have more associations than low frequency words while electrophysiological data do not. There was still a frequency effect in the N400 for... (More)
High frequency words are easier to recall compared to low frequency words in lists of only one frequency-range. This effect disappears when words of different frequencies are mixed in a list. Word frequency effects have often been assumed to rely on associations between words. The relationship between word frequency and associations was investigated by controlling associations using Latent Semantic Analysis (LSA) in an experiment of free recall. Event-related potentials (ERPs) were recorded and analysis focused on the N400 component. Behavioral results support the assumption that high frequency words have more associations than low frequency words while electrophysiological data do not. There was still a frequency effect in the N400 for lists of associated words. Results are not conclusive since the attempt to replicate word frequency effects in literature was unsuccessful and replication of results is necessary. (Less)
Please use this url to cite or link to this publication:
author
Åberg, Kristoffer
supervisor
organization
year
type
M2 - Bachelor Degree
subject
keywords
word frequency, Latent Semantic Analysis, N400, free recall, episodic memory, LSA, Neurology, neuropsychology, neurophysiology, Neurologi, neuropsykologi, neurofysiologi
language
English
id
1327773
date added to LUP
2006-10-25
date last changed
2006-10-25
@misc{1327773,
  abstract     = {High frequency words are easier to recall compared to low frequency words in lists of only one frequency-range. This effect disappears when words of different frequencies are mixed in a list. Word frequency effects have often been assumed to rely on associations between words. The relationship between word frequency and associations was investigated by controlling associations using Latent Semantic Analysis (LSA) in an experiment of free recall. Event-related potentials (ERPs) were recorded and analysis focused on the N400 component. Behavioral results support the assumption that high frequency words have more associations than low frequency words while electrophysiological data do not. There was still a frequency effect in the N400 for lists of associated words. Results are not conclusive since the attempt to replicate word frequency effects in literature was unsuccessful and replication of results is necessary.},
  author       = {Åberg, Kristoffer},
  keyword      = {word frequency,Latent Semantic Analysis,N400,free recall,episodic memory,LSA,Neurology, neuropsychology, neurophysiology,Neurologi, neuropsykologi, neurofysiologi},
  language     = {eng},
  note         = {Student Paper},
  title        = {Word frequency effects and inter-item associations : a study of the N400},
  year         = {2006},
}