A method for testing for a parietal lobe function deficiency, an occipital lobe function deficiency, and a developmental language disorder in a subject includes displaying to a subject ordered arrays of objects having features in a plurality of dimensions, which the subject is prompted to name. The named features are compared with the correct object features, and a count is maintained of errors and an interval taken to complete the naming process. These numbers are compared with predetermined data to determine possible deficiencies.