The Cognitive neuropsychology of visual and semantic processing of concepts

In recent years a range of computational models have been proposed for normal processing in reading, writing and speech comprehension. No viable computational model exists in the area of concept processing, in spite of much empirical work. This makes it difficult to devise tests which allow a detailed componential analysis, especially for assessing brain-damaged patients, thus making it difficult to pin down the process that is impaired. This special issue of The Journal of Cognitive Neuropsychology is intended to provide both empirical data and theoretical proposals which may help to formulae the right questions to be asked in the field of concept processing.