2016
What's the meaning of this? A behavioral and neurophysiological investigation into the principles behind the classification of visual emotional stimuli
CZEKÓOVÁ, Kristína, Daniel Joel SHAW, Tomáš URBÁNEK, Jan CHLÁDEK, Martin LAMOŠ et. al.Základní údaje
Originální název
What's the meaning of this? A behavioral and neurophysiological investigation into the principles behind the classification of visual emotional stimuli
Autoři
CZEKÓOVÁ, Kristína (703 Slovensko, garant, domácí), Daniel Joel SHAW (826 Velká Británie a Severní Irsko, domácí), Tomáš URBÁNEK (203 Česká republika), Jan CHLÁDEK (203 Česká republika), Martin LAMOŠ (203 Česká republika, domácí), Robert ROMAN (203 Česká republika, domácí) a Milan BRÁZDIL (203 Česká republika, domácí)
Vydání
PSYCHOPHYSIOLOGY, HOBOKEN, WILEY-BLACKWELL, 2016, 0048-5772
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30000 3. Medical and Health Sciences
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.668
Kód RIV
RIV/00216224:14740/16:00088218
Organizační jednotka
Středoevropský technologický institut
UT WoS
000382721300009
Klíčová slova anglicky
Emotion; Semantic content; Categorization; Intracerebral EEG; Cluster analysis
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 15. 3. 2018 10:09, Mgr. et Mgr. Kristína Czekóová, Ph.D.
Anotace
V originále
Two experiments were performed to investigate the principles by which emotional stimuli are classified on the dimensions of valence and arousal. In Experiment 1, a large sample of healthy participants rated emotional stimuli according to both broad dimensions. Hierarchical cluster analyses performed on these ratings revealed that stimuli were clustered according to their semantic content at the beginning of the agglomerative process. Example semantic themes include food, violence, nudes, death, and objects. Importantly, this pattern occurred in a parallel fashion for ratings on both dimensions. In Experiment 2, we investigated if the same semantic clusters were differentiated at the neurophysiological level. Intracerebral EEG was recorded from 18 patients with intractable epilepsy who viewed the same set of stimuli. Not only did electrocortical responses differentiate between these data-defined semantic clusters, they converged with the behavioral measurements to highlight the importance of categories associated with survival and reproduction. These findings provide strong evidence that the semantic content of affective material influences their classification along the broad dimensions of valence and arousal, and this principle of categorization exerts an effect on the evoked emotional response. Future studies should consider data-driven techniques rather than normative ratings to identify more specific, semantically related emotional images.
Návaznosti
ED1.1.00/02.0068, projekt VaV |
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GAP103/11/0933, projekt VaV |
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