| Effects of spatial frequency content on classification of face gender and expression. | |
| | |
MedLine Citation:
|
PMID: 20977005 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
The role of different spatial frequency bands on face gender and expression categorization was studied in three experiments. Accuracy and reaction time were measured for unfiltered, low-pass (cut-off frequency of 1 cycle/deg) and high-pass (cutoff frequency of 3 cycles/deg) filtered faces. Filtered and unfiltered faces were equated in root-mean-squared contrast. For low-pass filtered faces reaction times were higher than unfiltered and high-pass filtered faces in both categorization tasks. In the expression task, these results were obtained with expressive faces presented in isolation (Experiment 1) and also with neutral-expressive dynamic sequences where each expressive face was preceded by a briefly presented neutral version of the same face (Experiment 2). For high-pass filtered faces different effects were observed on gender and expression categorization. While both speed and accuracy of gender categorization were reduced comparing to unfiltered faces, the efficiency of expression classification remained similar. Finally, we found no differences between expressive and non expressive faces in the effects of spatial frequency filtering on gender categorization (Experiment 3). These results show a common role of information from the high spatial frequency band in the categorization of face gender and expression. |
| | |
Authors:
|
Luis Aguado; Ignacio Serrano-Pedraza; Sonia Rodríguez; Francisco J Román |
Related Documents
:
|
20221005 - Rotational matched spatial filter for biological pattern recognition. 20212745 - Optical statistical classifiers using coherent and incoherent light. 9469905 - Analog filtering of large solvent signals for improved dynamic range in high-resolution... 3408395 - Toward a strategy for analyzing the auditory middle-latency response waveform. 16862835 - Neural adjustments to chromatic blur. 7896865 - Design criteria for the reduction of shear forces in beds and seats. |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: The Spanish journal of psychology Volume: 13 ISSN: 1138-7416 ISO Abbreviation: Span J Psychol Publication Date: 2010 Nov |
Date Detail:
|
Created Date: 2010-10-27 Completed Date: 2010-11-23 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 101095192 Medline TA: Span J Psychol Country: Spain |
Other Details:
|
Languages: eng Pagination: 525-37 Citation Subset: IM |
Affiliation:
|
Facultad de Psicología, Campus de Somosaguas, Universidad Complutense, Madrid, Spain. laguado@psi.ucm.es |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adolescent Adult Attention Discrimination Learning / classification* Emotions / classification* Facial Expression* Female Gender Identity* Humans Male Middle Aged Pattern Recognition, Visual / classification* Perceptual Masking* Psychophysics Reaction Time Space Perception / classification* Young Adult |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Familiarity changes as a function of perceptual shifts.
Next Document: An exploratory study of phonological awareness and working memory differences and literacy performan...