Event-related potential correlates of perceptual and functional categories: Comparison between stimuli matching by identity and equivalence
Event-related potentials (ERPs) correlates of two test criteria of an abstract category task were dissociated. In a stimulus equivalence task, 10 subjects observed pairs of figures presented serially in three conditions: reflexivity (generalized identity), equivalence (arbitrary derived relations fr...
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2008
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03043940_v443_n3_p113_Yorio http://hdl.handle.net/20.500.12110/paper_03043940_v443_n3_p113_Yorio |
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paper:paper_03043940_v443_n3_p113_Yorio2023-06-08T15:29:32Z Event-related potential correlates of perceptual and functional categories: Comparison between stimuli matching by identity and equivalence Categories Concepts Event-related potentials Matching to sample Stimulus equivalence adult article brain function brain region controlled study electroencephalography electrophysiology event related potential human human experiment normal human perception priority journal response time stimulus response task performance Adult Analysis of Variance Brain Mapping Electroencephalography Evoked Potentials, Visual Humans Image Processing, Computer-Assisted Learning Magnetic Resonance Imaging Photic Stimulation Reaction Time Time Factors Visual Perception Event-related potentials (ERPs) correlates of two test criteria of an abstract category task were dissociated. In a stimulus equivalence task, 10 subjects observed pairs of figures presented serially in three conditions: reflexivity (generalized identity), equivalence (arbitrary derived relations from a previous training), and unrelated pairs. They were instructed to decide whether the second item in a pair matched or mismatched the first one. Participants' performance in reflexivity matching tests was faster and more accurate than in equivalence matching or mismatching responses. In the three conditions, an occipital P2, a frontal N2 and a parietal P3 ERP component were elicited. The earlier components P2 and N2 exhibited reflexivity matching effects, while the later component (P3) exhibited the only equivalence matching effect. In addition, the subtracted ERP components from unrelated minus identity and unrelated minus equivalence trials were computed within two time windows: 150-250 ms (dN300) and 350-450 ms (dN400). While both dN300 waves were not significantly different, the comparison of both dN400 waves showed statistical differences. Correlates of partially perceptual (but contextually abstract) concepts are elicited earlier than those of pure abstract concepts. These ERPs correlates of stimulus equivalence relation tests of semantic categories are in concordance with the behavioral data. © 2008. 2008 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03043940_v443_n3_p113_Yorio http://hdl.handle.net/20.500.12110/paper_03043940_v443_n3_p113_Yorio |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Categories Concepts Event-related potentials Matching to sample Stimulus equivalence adult article brain function brain region controlled study electroencephalography electrophysiology event related potential human human experiment normal human perception priority journal response time stimulus response task performance Adult Analysis of Variance Brain Mapping Electroencephalography Evoked Potentials, Visual Humans Image Processing, Computer-Assisted Learning Magnetic Resonance Imaging Photic Stimulation Reaction Time Time Factors Visual Perception |
| spellingShingle |
Categories Concepts Event-related potentials Matching to sample Stimulus equivalence adult article brain function brain region controlled study electroencephalography electrophysiology event related potential human human experiment normal human perception priority journal response time stimulus response task performance Adult Analysis of Variance Brain Mapping Electroencephalography Evoked Potentials, Visual Humans Image Processing, Computer-Assisted Learning Magnetic Resonance Imaging Photic Stimulation Reaction Time Time Factors Visual Perception Event-related potential correlates of perceptual and functional categories: Comparison between stimuli matching by identity and equivalence |
| topic_facet |
Categories Concepts Event-related potentials Matching to sample Stimulus equivalence adult article brain function brain region controlled study electroencephalography electrophysiology event related potential human human experiment normal human perception priority journal response time stimulus response task performance Adult Analysis of Variance Brain Mapping Electroencephalography Evoked Potentials, Visual Humans Image Processing, Computer-Assisted Learning Magnetic Resonance Imaging Photic Stimulation Reaction Time Time Factors Visual Perception |
| description |
Event-related potentials (ERPs) correlates of two test criteria of an abstract category task were dissociated. In a stimulus equivalence task, 10 subjects observed pairs of figures presented serially in three conditions: reflexivity (generalized identity), equivalence (arbitrary derived relations from a previous training), and unrelated pairs. They were instructed to decide whether the second item in a pair matched or mismatched the first one. Participants' performance in reflexivity matching tests was faster and more accurate than in equivalence matching or mismatching responses. In the three conditions, an occipital P2, a frontal N2 and a parietal P3 ERP component were elicited. The earlier components P2 and N2 exhibited reflexivity matching effects, while the later component (P3) exhibited the only equivalence matching effect. In addition, the subtracted ERP components from unrelated minus identity and unrelated minus equivalence trials were computed within two time windows: 150-250 ms (dN300) and 350-450 ms (dN400). While both dN300 waves were not significantly different, the comparison of both dN400 waves showed statistical differences. Correlates of partially perceptual (but contextually abstract) concepts are elicited earlier than those of pure abstract concepts. These ERPs correlates of stimulus equivalence relation tests of semantic categories are in concordance with the behavioral data. © 2008. |
| title |
Event-related potential correlates of perceptual and functional categories: Comparison between stimuli matching by identity and equivalence |
| title_short |
Event-related potential correlates of perceptual and functional categories: Comparison between stimuli matching by identity and equivalence |
| title_full |
Event-related potential correlates of perceptual and functional categories: Comparison between stimuli matching by identity and equivalence |
| title_fullStr |
Event-related potential correlates of perceptual and functional categories: Comparison between stimuli matching by identity and equivalence |
| title_full_unstemmed |
Event-related potential correlates of perceptual and functional categories: Comparison between stimuli matching by identity and equivalence |
| title_sort |
event-related potential correlates of perceptual and functional categories: comparison between stimuli matching by identity and equivalence |
| publishDate |
2008 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03043940_v443_n3_p113_Yorio http://hdl.handle.net/20.500.12110/paper_03043940_v443_n3_p113_Yorio |
| _version_ |
1768545926117326848 |