Universität zu Köln

Marinovic, Vesna ORCID: 0000-0002-8280-6555, Hoehl, Stefanie ORCID: 0000-0003-0472-0374 and Pauen, Sabina (2014). Neural correlates of human-animal distinction: An ERP-study on early categorical differentiation with 4-and 7-month-old infants and adults. Neuropsychologia, 60. S. 60 - 77. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD. ISSN 1873-3514

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Abstract

For infants it is crucial to differentiate conspecifics from other animates in order to profoundly learn about the world, the self, and other people. The current. study investigates brain correlates of a categorical human animal distinction in infants of different age groups as well as in adults. Using the categorical oddball task (Pauen, Wahl, & Hoehl, 2011), we compared event-related potentials of 4- and 7-month-old infants with those of adults. A total of 100 different-looking pictures of animals and humans were presented in random sequence. In 80% of the trials exemplars of one category were shown (standards), and in 20% of the trials exemplars of the contrasting category were shown (oddballs). In 7-month-olds, an increased Nc response was found for oddballs as compared to standards, independent of the oddball category. Furthermore, amplitude of the P400 was increased in reaction to standards as compared to oddballs, when humans served as standards (i.e., in the human-standard condition). No corresponding ERP-effects were observed in 4-month-olds. Thus, while 7-month-olds showed signs of categorical differentiation on the neural level, 4-month-olds' ERPs suggest less stable category representations within the categorical oddball paradigm. In adults, we found an increased N1 amplitude for oddballs as compared to standards. Thus, adults' sensitivity to the relative frequencies of the contrasted categories at the level of the N1 was comparable to infants' Nc response at 7 months. Furthermore, in adults we found the N2 amplitude to reflect category-specific processing, with a consistently increased amplitude in reaction to animals. (C) 2014 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Marinovic, Vesna UNSPECIFIED orcid.org/0000-0002-8280-6555 UNSPECIFIED Hoehl, Stefanie UNSPECIFIED orcid.org/0000-0003-0472-0374 UNSPECIFIED Pauen, Sabina UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-435434
DOI:	10.1016/j.neuropsychologia.2014.05.013
Journal or Publication Title:	Neuropsychologia
Volume:	60
Page Range:	S. 60 - 77
Date:	2014
Publisher:	PERGAMON-ELSEVIER SCIENCE LTD
Place of Publication:	OXFORD
ISSN:	1873-3514
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language EVENT-RELATED POTENTIALS; EYE GAZE; FACIAL EXPRESSIONS; VISUAL CATEGORIZATION; EMOTIONAL EXPRESSIONS; RECOGNITION MEMORY; HUMAN FACES; OBJECT; BODY; REPRESENTATION Multiple languages Behavioral Sciences; Neurosciences; Psychology, Experimental Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/43543