EXPRESS: Do both WRAP and TRAP inhibit the recognition of the French word DRAP? Impact of orthographic markedness on cross-language orthographic priming

We investigated lexical and sub-lexical orthographic coding in bilingual visual word recognition by examining interactions between orthographic neighborhood and markedness. In three experiments, French/English bilinguals performed a masked lexical decision task in French (L1) in which orthographically related prime words could be either marked or unmarked English (L2) words, compared to unrelated primes (e.g., wrap, trap, gift – DRAP, meaning sheet). The results yielded an overall inhibition priming effect, which was unexpectedly more robust in the marked condition than in the unmarked one. This result highlights the need to integrate both lexical competition and orthographic markedness in bilingual models such as BIA/+ and determine how the latter may modulate lexical processing in bilinguals.

Orthographic Priming in Braille Reading as Evidence for Task-specific Reorganization in the Ventral Visual Cortex of the Congenitally Blind

The task-specific principle asserts that, following deafness or blindness, the deprived cortex is reorganized in a manner such that the task of a given area is preserved even though its input modality has been switched. Accordingly, tactile reading engages the ventral occipitotemporal cortex (vOT) in the blind in a similar way to regular reading in the sighted. Others, however, show that the vOT of the blind processes spoken sentence structure, which suggests that the task-specific principle might not apply to vOT. The strongest evidence for the vOT's engagement in sighted reading comes from orthographic repetition–suppression studies. Here, congenitally blind adults were tested in an fMRI repetition–suppression paradigm. Results reveal a double dissociation, with tactile orthographic priming in the vOT and auditory priming in general language areas. Reconciling our finding with other evidence, we propose that the vOT in the blind serves multiple functions, one of which, orthographic processing, overlaps with its function in the sighted.

Masked morphological priming tracks the development of a fully mature lexical system in L2

Visual word identification is based on an early morphological analysis in one’s native language; how these mechanisms apply to a second language is much less clear. We recruited L1 Italian–L2 English speakers in a masked priming task where the relationship between prime and target was morphologically transparent, e.g., employer–EMPLOY, morphologically opaque, e.g., corner-CORN, or merely orthographic, e.g., brothel–BROTH. Critically, participants underwent a thorough testing of their lexical, morphological, phonological, spelling and semantic proficiency in their second language. By exploring a wide spectrum of L2 proficiency, we showed that this factor critically qualifies L2 priming. Genuine morphological facilitation only arises as proficiency grows; and opaque and orthographic priming shrink as L2 competence increases. Age of acquisition was also evaluated, and did not affect the priming pattern. Furthermore, we showed that L2 priming is modulated by sensitivity to probabilistic relationships between form and meaning. Overall, these data illustrate the trajectory towards a fully consolidated L2 lexicon, and show that masked priming is a key tracker of this process.

ERPs Reveal Relationships Between Neural Orthographic Priming Effects and Reading Skill

Masked priming has long been used to demonstrate the impact of brief presentations of orthographically related stimuli on visual word recognition. The aim of the present study was to examine neural correlates of orthographic priming produced by pronounceable and unpronounceable anagram primes. Crucially, we examined relationships between these priming effects and individual differences on a battery of measures assessing orthographic processing ability, current reading ability, and verbal intelligence in university students. Our study demonstrated group-level priming effects on the N200 and N400, with both components being primarily modulated by unpronounceable, orthographically illegal primes. Relationships between the extent of priming as indexed by N200 amplitude and speed of orthographic processing emerged, as reaction time (RT) on an orthographic choice task was associated with priming effects. Priming effects on N400 amplitude were related to phonological decoding efficiency. Those individuals with less efficient orthographic or phonological processing were more sensitive to the orthographic relationship between primes and targets. These findings demonstrate that university students vary in their sensitivity to orthographic priming and the degree to which orthographic information is used during word recognition.

Form prominence in the L2 lexicon: Further evidence from word association

Two lines of evidence emerged in the past suggesting that lexical form seemed to play a more important role in the organization of the second language (L2) mental lexicon than in that of the first language (L1) lexicon. They were masked orthographic priming in L2 word recognition and an elevated proportion of form-related responses in L2 word association. However, findings from previous word association studies were inconsistent regarding (1) how often L2 speakers produced form-related responses ( flood–blood) and (2) whether L2 speakers were more likely than L1 speakers to provide such responses. Attributing this inconsistency to two methodological causes, the classification of form-related responses and the selection of stimuli, the present study adopted an improved approach by quantifying the definition of form-related responses and by selecting stimuli that had both strong semantic associates and orthographically similar words as potential responses. The latter improvement helped remove the bias for producing either meaning-based or form-based responses. A group of 30 English native speakers and two groups of 65 non-native speakers were tested on the same set of stimuli of 74 English words. Three findings were obtained: (1) non-native speakers produced significantly more form-related responses than native speakers, (2) the two non-native speaker group who differed in L2 experiences showed comparable results, and (3) the participants’ familiarity with the stimuli and the lexical frequency of the stimuli negatively correlated with the proportion of form-related responses among non-native speakers. These results provided more compelling evidence for form prominence in the L2 lexicon.

Dissociating morphological and form priming with novel complex word primes

Recent research suggests that visually-presented words are initially morphologically segmented whenever the letter-string can be exhaustively assigned to existing morphological representations, but not when an exhaustive parse is unavailable; e.g., priming is observed for both hunter → HUNT and brother → BROTH, but not for brothel → BROTH. Few studies have investigated whether this pattern extends to novel complex words, and the results to date (all from novel suffixed words) are mixed. In the current study, we examine whether novel compounds (drugrack → RACK) yield morphological priming which is dissociable from that in novel pseudoembedded words (slegrack → RACK). Using masked priming, we find significant and comparable priming in reaction times for word-final elements of both novel compounds and novel pseudoembedded words. Using overt priming, however, we find greater priming effects (in both reaction times and N400 amplitudes) for novel compounds compared to novel pseudoembedded words. These results are consistent with models assuming across-the-board activation of putative constituents, while also suggesting that morpheme activation may persevere despite the lack of an exhaustive morpheme-based parse when an exhaustive monomorphemic analysis is also unavailable. These findings highlight the critical role of the lexical status of the pseudoembedded prime in dissociating morphological and orthographic priming.

L1 and L2 processing of compound words: Evidence from masked priming experiments in English

This study reports results from a series of masked priming experiments investigating early automatic processes involved in the visual recognition of English bimorphemic compounds in native and non-native processing. Results show that NSs produced robust and statistically equivalent masked priming effects with semantically transparent (e.g., toothbrush-TOOTH) and opaque (e.g., honeymoon-HONEY) compound primes, but no priming with orthographic controls (e.g., restaurant-REST), irrespective of constituent position. Similarly, advanced Chinese learners of English also produced robust and statistically equivalent priming effects with transparent and opaque compound primes in both positions. However, a clear orthographic priming effect was observed in the word-initial overlap position but no such effect in the word-final position. We argue that L2 compound priming originates from a different source from form priming. We conclude that these findings lend support to the sublexical morpho-orthographic decomposition mechanism underlying early English compound recognition not only in L1 but also in L2 processing.