Universal and particular in morphological processing: Evidence from Hebrew

The Role of the Root in Spoken Word Recognition in Hebrew: An Auditory Gating Paradigm

Very few studies have investigated online spoken word recognition in templatic languages. In this study, we investigated both lexical (neighborhood density and frequency) and morphological (role of root morpheme) aspects of spoken word recognition of Hebrew, a templatic language, using the traditional gating paradigm. Additionally, we compared the traditional gating paradigm with a novel, phoneme-based gating paradigm. The phoneme-based approach allows for better control of information available at each gate. We found lexical effects with high-frequency words and low neighborhood density words being recognized at earlier gates. We also found that earlier access to root-morpheme information enabled word recognition at earlier gates. Finally, we showed that both the traditional gating paradigm and gating by phoneme paradigm yielded equivalent results.

Morphological Decomposition in L2 Arabic: A Masked Priming Study

Previous findings indicate that the way words are organized in the mental lexicon may differ in Arabic and English. While words are organized according to both orthographic and morphological form similarity in English, they are organized primarily according to morphological form similarity in Semitic languages (Frost et al. in J Exp Psychol Learn Mem Cogn 23:829-856, 1997; J Exp Psychol Learn Mem Cogn 31:1293-1326, 2005). The purpose of this study was to determine whether L1 English learners of L2 Arabic organize their L2 mental lexicon so that they show nativelike patterns of lexical activation, and whether this depends on proficiency level. Native speakers of Arabic, intermediate-proficiency, and advanced-proficiency learners completed a masked priming, lexical decision task in Arabic. Response times were measured to target words preceded by primes that were orthographically or morphologically related, identical, or unrelated. Results showed that native speakers and L2 learners patterned alike regardless of proficiency level.

Semantic Effects in Morphological Priming: The Case of Hebrew Stems

To what extent is morphological representation in different languages dependent on semantic information? Unlike Indo-European languages, the Semitic mental lexicon has been argued to be purely "morphologically driven", with complex stems represented in a decomposed format (root + vowel pattern) irrespectively of their semantic properties. We have examined this claim by comparing cross-modal root-priming effects elicited by Hebrew verbs of a productive, open-ended class (Piel) and verbs of a closed-class (Paal). Morphological priming effects were obtained for both verb types, but prime-target semantic relatedness interacted with class, and only modulated responses following Paal, but not Piel primes. We explain these results by postulating different types of morpho-lexical representation for the different classes: structured stems, in the case of Piel, and whole-stems (which lack internal morphological structure), in the case of Paal. We conclude that semantic effects in morphological priming are also obtained in Semitic languages, but they are crucially dependent on type of morpho-lexical representation.

The Form of Morphemes: MEG Evidence From Masked Priming of Two Hebrew Templates

Studies of lexical access have benefited from comparisons between languages like English, which shows concatenative morphology, and Semitic languages showing non-concatenative morphology of roots and patterns. Morphological decomposition in Semitic has previously been probed using masked priming, originally developed to investigate concatenative morphology. However, studies conducted on Semitic languages have often targeted Semitic-specific questions, such as whether the root and the verbal template prime lexical access. The overall consequence of these studies for our understanding of lexical access remains unclear. In two experiments on Hebrew using MEG, we demonstrate that a verbal form which is orthographically and phonologically indistinguishable from non-verbal forms is primed by other verbs in the same template but not by similar nouns and adjectives. These results suggest that masked priming taps into more than just visual forms but reflects morphological content, even if this content is abstract, showing no distinct orthographic or phonological marking.