The use of the phrase mind's eye does not imply that there is a single or unitary place in the mind or brain where visual consciousness occurs. Philosophers such as Daniel Dennett have critiqued this view.[14] However, others, such as Johnjoe McFadden of the University of Surrey in the United Kingdom and the New Zealand-based neurobiologist Susan Pockett, propose that the brain's electromagnetic field is consciousness itself, thus causing the perception of a unitary location.[15][16]