Identification of spatially filtered stimuli as function of the semantic category.
The different weight of spatial frequency content in the identification of visual objects was investigated. Subjects were required to identify spatially filtered pictures of animals, vegetables and nonliving objects, displayed at 9 resolution levels of filtering following a coarse-to-fine order. Results showed that spatial frequency content differentially affected the three categories of stimuli. Data suggested a different involvement of low and high spatial frequency channels in visual processing of objects in relation to the semantic category.
Vannucci
M
M
Dipartimento di Psicologia, Università degli Studi di Firenze via San Niccolò 93, 50125, Firenze, Italy.
Viggiano
M P
MP
Argenti
F
F
D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D010775:Photic Stimulation; D012660:Semantics; D013028:Space Perception / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology*