When we are born our perceptual systems are capable of discriminating sounds that occur in English, Spanish, Hindi, or any other language. During the first year, our perception begins to zero in on the particular set of sounds that are contrastive in our native language(s) (L1s) (Kuhl et al., 2006). For example, a child whose parents are L1 English speakers will pick up on the fact that /b/ and /p/ are contrastive in English (e.g., “bet” vs. “pet”) and that the major difference is in the burst of air that occurs when the stop is released (i.e., there is a stronger burst of air, or more aspiration, on /p/ than /b/). A child whose parents are L1 Hindi speakers will pick up on this contrast, Continue Reading →
With the advancement of cognitive neuroscience and the development of modern brain imaging methods in the 1990s, the field of language neurobiology—the study of the relationship between the brain and language functions—has grown immensely and rapidly over the past thirty years, and finds itself at a crossroad with respect to its theoretical underpinning. The main message of our recent article “Broca and Wernicke are Dead, or Moving Past the Classic Model of Language Neurobiology” (Tremblay & Dick, 2016) is that the most historically important model in the field, the Classic “Wernicke-Geschwind” Model, and associated terminology, is no longer useful to guide research and clinical intervention in the field.
A Brief History of the Classic Model
The Classic Model was the first major model of language neurobiology. Continue Reading →