However in the next protocol (Example 2), the source of the problem is lexical in nature.
Young word learners fail to discriminate phonetic contrasts in certain situations, an observation that has been used to support arguments that the nature of lexical representation and lexical processing changes over development.
Large and robust task-sensitive responses in the FP regions may reflect the extra-lexical, domain general nature of the processing in those regions, as characterized, for example, in one dlPFC region (Tal -50, +23, +27; MNI -53, +26, +30) in a previous study (Fiebach et al. 2007).
Importantly, the MMN can be elicited even in the absence of active attention to auditory stimuli and can therefore be used for investigating the nature of lexical representations and processing in the brain without the need to employ tasks such as lexical or semantic decision (for a review, see Pulvermüller & Shtyrov, 2006; Shtyrov & Pulvermüller, 2007b).
However, the nature of lexical representation is not clearly articulated in SFL.
Compositionality is often viewed as a methodological principle (e.g. Groenendijk and Stokhof 1989;1991, Janssen 1997, Dever 1999), since any model of interpretation can be made compositional if we are sufficiently relaxed about the nature of lexical meanings and/or the syntactic structures over which the compositional theory is defined.
In summary, it appears that all types of information bound to single written words, be they physical, orthographic, lexical or semantic in nature, are reflected by neurophysiological indicators within the first 200 ms after word onset.
We chose to use the MMN paradigm because it is now well-established as a method for investigating the nature of lexical processing and linguistic representations, particularly for revealing the earliest automatic stages of spoken language processing (Pulvermüller and Shtyrov 2006)*.
We chose to use the MMN paradigm because it is now well-established as a method for investigating the nature of lexical processing and linguistic representations, and in particular for revealing the earliest automatised stages of spoken language processing (Pulvermüller & Shtyrov, 2006).
The representation is in the form of an ontological network but there is no examination of the nature of the lexical item itself, i.e. in terms of its form(s) and functions or its semantic properties.
