Chotiga Pattamadilok

French National Centre for Scientific Research | CNRS

The left ventral occipito-temporal cortex (left-vOT) plays a key role in reading. Interestingly, the area also responds to speech input, suggesting that it may have other functions beyond written word recognition. Here, we adopt graph theoretical analysis to investigate the left-vOT’s functional role in the whole-brain network while participants pr...

Brain lateralization of lexical tone processing remains a matter of debate. In this study we used a dichotic listening paradigm to examine the influences of the knowledge of Jyutping (a romanization writing system which provides explicit Cantonese tone markers), linguistic-processing demand and tone type on the ear preference pattern of native tone...

As an interface between the visual and language system, the left ventral occipito-temporal cortex (left-vOT) plays a key role in reading. This functional role is supported by anatomical and functional connections between the area and other brain regions within and outside the language network. Nevertheless, only a few studies have investigated how...

The left ventral occipito-temporal cortex (left-vOT) plays a key role in reading. Several studies have also reported its activation during speech processing, suggesting that it may play a role beyond written word recognition. Here, we adopt a graph theoretical analysis to investigate the functional role of this area in the whole-brain network while...

Both visual articulatory gestures and orthography provide information on the phonological content of speech. This EEG study investigated the integration between speech and these two visual inputs. A comparison of skilled readers’ brain responses elicited by a spoken word presented alone versus synchronously with a static image of a viseme or a grap...

Auditory speech appears to be linked to visual articulatory gestures and orthography through different mechanisms. Yet, both types of visual information have a strong influence on speech processing. The present study directly compared their contributions to speech processing using a novel word learning paradigm. Native speakers of French, who were...

A question under debate in psycholinguistics is the nature of the relationship between spoken and written languages. Although it has been extensively shown that orthographic transparency, which varies across writing systems, strongly affects reading performance, its role in speech processing is much less investigated. The present study addressed th...

The acquisition of an alphabetic orthography transforms speech processing in the human brain. Behavioral evidence shows that phonological awareness as assessed by meta-phonological tasks like phoneme judgment, is enhanced by alphabetic literacy acquisition. The current study investigates the time-course of the neuro-cognitive operations underlying...

An event-related fMRI study examined how speakers inspect their own speech for errors. Concretely, we sought to assess (1) the role of the temporal cortex in monitoring speech errors, linked with comprehension-based monitoring; (2) the involvement of the cerebellum in internal and external monitoring, linked with forward modeling; and (3) the role...

An fMRI study examined how speakers inspect their own speech for errors. In a word production task, we observed enhanced involvement of the right posterior cerebellum for trials that were correct, but on which participants were more likely to make a word- as compared to a non-word error. Furthermore, comparing errors to correctly produced utterance...

In skilled adult readers, reading words is generally assumed to rapidly and automatically activate the phonological code. In adults with dyslexia, despite the main consensus on their phonological processing deficits, little is known about the activation time-course of this code. The present study investigated this issue in both populations. Partici...

The left ventral occipitotemporal cortex (vOT) is considered the key area of the visuo-orthographic system. However, some studies reported that the area is also involved in speech processing tasks, especially those that require activation of orthographic knowledge. These findings suggest the existence of a top-down activation mechanism allowing suc...

We propose in this paper the description of a new dataset aiming at implementing EEG experiments on sentence processing. The resource contains a set of idiomatic sentences together with the corresponding non-idiomatic control sentences. Moreover, in order to study different ERP effects for idiom processing, we also introduce in this original materi...

The time-course of morphological processing during spoken word recognition was investigated using event-related brain potentials (ERPs) in an auditory lexical decision task. We compared three different types of French words: truly suffixed (e.g., pochette ‘little pocket’ = poche ‘pocket’ + diminutive suffix -ette), pseudo-suffixed (e.g., mouette 's...

While part of the left ventral occipito-temporal cortex (left-vOT), known as the Visual Word Form Area, plays a central role in reading, the area also responds to speech. This cross-modal activation has been explained by three competing hypotheses. Firstly, speech is converted to orthographic representations that activate, in a top-down manner, wri...

Reading involves activation of phonological and semantic knowledge. Yet, the automaticity of the activation of these representations remains subject to debate. The present study addressed this issue by examining how different brain areas involved in language processing responded to a manipulation of bottom-up (level of visibility) and top-down info...

This study examined whether the ability of southern French speakers to discriminate between standard French word forms such as /pike/ and /pikε/ can be improved by a training procedure in which participants were exposed to the orthographic representations of words forming /e/-/ε/ minimal pairs. The results of the training procedure showed that sout...

Functional brain imaging studies reported activation of the left dorsal premotor cortex (PMd), that is, a main area in the writing network, in reading tasks. However, it remains unclear whether this area is causally relevant for written stimulus recognition or its activation simply results from a passive coactivation of reading and writing networks...

Cognitive theories on reading propose that the characteristics of written stimuli determine how they are processed in the brain. However, whether the brain distinguishes between regular words, irregular words, and pseudowords already at an early stage of the reading process is still subject to debate. Here we used chronometric TMS to address this i...

Studies on proficient readers showed that speech processing is affected by knowledge of the orthographic code. Yet, the automaticity of the orthographic influence depends on task demand. Here, we addressed this automaticity issue in normal and dyslexic adult readers by comparing the orthographic effects obtained in two speech processing tasks that...

Acquiring literacy establishes connections between the spoken and written system and modifies the functioning of the spoken system. As most evidence comes from on-line speech recognition tasks, it is still a matter of debate when and how these two systems interact in metaphonological tasks. The present event-related potentials study investigated th...

http://dx.doi.org/10.5007/2175-8026.2012n63p161 The levels-of-processing approach to speech processing (cf. Kolinsky, 1998) distinguishes three levels, from bottom to top: perception, recognition (which involves activation of stored knowledge) and formal explicit analysis or comparison (which belongs to metalinguistic ability), and assumes that o...

While the influence of orthographic knowledge on lexical and postlexical speech processing tasks has been consistently observed, it is not the case in tasks that can be performed at the prelexical level. The present study re-examined the orthographic consistency effect in such a task, namely in shadowing. Comparing the situation where the acoustic...

Metaphonological tasks, such as rhyme judgment, have been the primary tool for the investigation of the effects of orthographic knowledge on spoken language. However, it has been recently argued that the orthography effect in rhyme judgment does not reflect the automatic activation of orthographic codes but rather stems from sophisticated response...

The influence of orthographic knowledge has been consistently observed in dissimilarity speech recognition and metaphonological tasks. The present study provides data suggesting that such influence also pervades other cognitive domains phonological related to language abilities, such as verbal working memory. Using serial similarity effect recall o...

Behavioral studies have demonstrated that learning to read and write affects the processing of spoken language. The present study investigates the neural mechanism underlying the emergence of such orthographic effects during speech processing. Transcranial magnetic stimulation (TMS) was used to tease apart two competing hypotheses that consider thi...

The generality of the orthographic consistency effect in speech recognition tasks previously reported for Portuguese beginning readers was assessed in French-speaking children, as the French orthographic code presents a higher degree of inconsistency than the Portuguese one. Although the findings obtained with the French second graders replicated t...

Previous research has shown that literacy (i.e., learning to read and spell) affects spoken language processing. However, there is an on-going debate about the nature of this influence. Some argued that orthography is co-activated on-line whenever we hear a spoken word. Others suggested that orthography is not activated on-line but has changed the...

A critical assumption underlying the use of functional localiser scans is that the voxels identified as the functional region-of-interest (fROI) are essentially the same as those activated by the main experimental manipulation. Intra-subject variability in the location of the fROI violates this assumption, reducing the sensitivity of the analysis a...

The debate regarding the role of ventral occipito-temporal cortex (vOTC) in visual word recognition arises, in part, from difficulty delineating the functional contributions of vOTC as separate from other areas of the reading network. Here, we investigated the feasibility of using TMS to interfere with vOTC processing in order to explore its specif...

The influence of orthographic knowledge on lexical tone processing was examined by manipulating the congruency between the tone and the tone marker of Thai monosyllabic words presented in three metalinguistic tasks. In tone monitoring (Experiment 1) and same-different tone judgement (Experiment 2)--that is, tasks that require an explicit analysis o...

Culture has been shown to influence the way people apprehend their physical environment. Cognitive orientation is more holistic in East Asian cultures, which emphasize relationships and connectedness among objects in the field, than in Western cultures, which are more prone to focus exclusively on the object and its attributes. We investigated whet...

The influence of orthography on children's online auditory word recognition was studied from the end of Grade 4 to the end of Grade 9 by examining the orthographic consistency effect in auditory lexical decision. Fourth-graders showed evidence of a widespread influence of orthography in their spoken word recognition system; words with rimes that ca...

In this paper we begin by addressing the concept of literacy, which for us is “the ensemble of representations and processes that an individual acquires as an obligatory and direct consequence of learning to read and write”, and distinguish it from other conceptions that can be found in the literature. In the remaining of the paper we discuss some...

Literacy changes the way the brain processes spoken language. Most psycholinguists believe that orthographic effects on spoken language are either strategic or restricted to meta-phonological tasks. We used event-related brain potentials (ERPs) to investigate the locus and the time course of orthographic effects on spoken word recognition in a sema...

Ventura, Morais, Pattamadilok, and Kolinsky (200443. Ventura , P. , Morais , J. , Pattamadilok , C. and Kolinsky , R. 2004 . The locus of the orthographic consistency effect in auditory word recognition . Language and Cognitive Processes , 19 : 57 – 95 . [Taylor & Francis Online], [Web of Science ®]View all references) found, for spoken Portuguese...

The current study investigated the modulation by orthographic knowledge of the final overlap phonological priming effect, contrasting spoken prime-target pairs with congruent spellings (e.g., 'carreau-bourreau', /karo/-/buro/) to pairs with incongruent spellings (e.g., 'zéro-bourreau', /zero/-/buro/). Using materials and designs aimed at reducing t...

In Experiments 1–2, we replicated with two different Portuguese materials the consistency effect observed for French by Ziegler and Ferrand (1998). Words with rimes that can be spelled in two different ways (inconsistent) produced longer auditory lexical decision latencies and more errors than did consistent words. In Experiment 3, which used shado...