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1

THE ELECTROPHYSIOLOGY OF FACE PERCEPTION AND FACE ADAPTATION

100%
Kovacs G.
Magyar Pszichologiai Szemle (Hungarian Psychological Review)
|
2008
|
vol. 63
|
issue 1
9-17
EN
Several lines of electro- and psychophysical research are searching for the neural correlates of face perception. Electrophysiological studies have described a large negative wave called N170 due to its latency over the occipito-temporal areas. According to several studies N170 specifically mirrors the structural steps of face processing. At the same time during the last years behavioral adaptation studies started to investigate higher order adaptations due to face processing, i.e. specific distortions of perception. The present paper summarizes the features of N170 and its relationship to face adaptation.
2

ADAPTATION AND AFTEREFFECTS IN THE VISUAL SYSTEM

100%
Kovacs G.
Magyar Pszichologiai Szemle (Hungarian Psychological Review)
|
2006
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vol. 61
|
issue 2
251-264
EN
It is a fundamental property of all living creatures that they adapt to their environment, thus improving their chances of survival. The adaptation of the neurons of the central nervous system is well signalled by the perceptually observed aftereffects. The aftereffects, observed for complex shapes and faces, besides the widely described adaptation to simple visual stimuli, have been more and more studied in the past decades. The paper summarizes the recent results regarding these aftereffects, with special attention to how they shed light on the object and face representation of the human brain.
3

SMELLING MALE SEX HORMON-LIKE STEROIDS ALTERS THE PERCEIVED GENDER OF A FACE

63%
Zsadanyi-Nagy Z., Kovacs G.
Magyar Pszichologiai Szemle (Hungarian Psychological Review)
|
2007
|
vol. 62
|
issue 2
181-191
EN
Recently more and more studies test the interactions between the visual and olfactory systems. In their present paper the authors studied the effect of an odorous male gender specific sex-hormone - like steroid (5-alpha-androgenst-16-en-3-one) on face perception of healthy adult males in a two-alternative forced-choice gender discrimination task. According to their results subjects judge a particular face significantly more male when inhaling the steroid, than in the control condition. The authors' experiments illustrate that the olfactory presentation of sex-hormone - like steroids can alter the sexual discrimination of faces in a symmetric way, consequently there is a close interaction between olfactory and visual modalities, and this relationship manifests on socially important odorous substances and human faces.
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