The study of word-to-text integration (WTI) provides a window on incremental processes that link the meaning of a word to the preceding text. We review a research program using event-related potential indicators of WTI at sentence beginnings, thus localizing sources of integration to prior text meaning independently of the current sentence. The…

After well over a century of research about dyslexia, there is still no consensus about how it differs from other decoding difficulties, how it is identified, and its causes. Nevertheless, there is an abundance of research about dyslexia, mostly conducted outside of education, and much of it focused on the brain. This attention to the brain and…

We present an MEG study of homonym recognition in reading, identifying effects of a semantic measure of homonym ambiguity. This measure sheds light on two competing theories of lexical access: the "early access" theory, which entails that lexical access occurs at early (pre 200 ms) stages of processing; and the "late access" theory, which…

We used event-related brain potentials to clarify the role of phonology in activating the meanings of high-frequency words during skilled silent reading. Target homophones ("meet") in sentences such as "The students arranged to meet in the library to study" were replaced on some trials by either a high-frequency homophone mate…

In a recent paper, Chiarello, Welcome, Halderman, and Leonard (2009) reported positive correlations between word-related visual field asymmetries and reading performance. They argued that strong word processing lateralization represents a more optimal brain organization for reading acquisition. Their empirical results contrasted sharply with those…

Perceptual asymmetries for tasks involving aesthetic preference or line bisection can be affected by asymmetrical neurological mechanisms or left/right reading habits. This study investigated the relative contribution of these mechanisms in 100 readers of Japanese and English. Participants made aesthetic judgments between pairs of mirror-reversed…

Diffusion tensor imaging tractography is a structural magnetic resonance imaging technique allowing reconstruction and assessment of the integrity of three dimensional white matter tracts, as indexed by their fractional anisotropy. It is assumed that the left arcuate fasciculus plays a crucial role for reading development, as it connects two…

In recent years, some researchers have proposed that a fundamental component of the word recognition process is that each fovea is divided precisely at its vertical midline and that information either side of this midline projects to different, contralateral hemispheres. Thus, when a word is fixated, all letters to the left of the point of…

We present the first comprehensive review of research into hemianopic dyslexia since Mauthner's original description of 1881. We offer an explanation of the reading impairment in patients with unilateral homonymous visual field disorders and clarify its functional and anatomical bases. The major focus of our review is on visual information…

Developmental dyslexia is one of the most common neuropsychological disorders in children and adults. Only few data are available on the pathomechanisms of this specific dysfunction, assuming--among others--that dyslexia might be a disconnection syndrome of anterior and posterior brain regions involved in phonological and orthographic aspects of…

Developmental dyslexia is associated with functional abnormalities within reading areas of the brain. For some children diagnosed with dyslexia, phonologically based remediation programs appear to rehabilitate brain function in key reading areas (Shaywitz et al., Biological Psychiatry 55: 101-110, 2004; Simos et al., Neuroscience 58: 1203-1213,…

We investigated processing of metaphoric sentences using event-related functional magnetic resonance imaging (fMRI). Seventeen healthy subjects (6 female, 11 male) read 60 novel short German sentence pairs with either metaphoric or literal meaning and performed two different tasks: judging the metaphoric content and judging whether the sentence…

Brain activation during reading of phonographic (Hangul) and ideographic (Hanja) words is compared using functional MRI by taking advantage of the bi-scriptal system of the Korean language. To examine the psycholinguistic difference, i.e., phonographic vs. ideographic, separately from other differences due to Hanja being a secondary script, we…

Shares information about the latest technology which offers expanded insights into the reading process and how the brain operates. (MG)

Recent research on Chinese orthography is reviewed in a discussion of the relationship between orthographic symbols and reading processes. Specifically, these issues are addressed with relation to research findings: the difficulty of learning Chinese logographs, particularly with regard to learning disabilities and biliteracy; whether reading in…