What's the meaning of this? A behavioral and neurophysiological
investigation into the principles behind the classification of
visual emotional stimuli

J 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.

Basic information

Original name

What's the meaning of this? A behavioral and neurophysiological investigation into the principles behind the classification of visual emotional stimuli

Authors

CZEKÓOVÁ, Kristína (703 Slovakia, guarantor, belonging to the institution), Daniel Joel SHAW (826 United Kingdom of Great Britain and Northern Ireland, belonging to the institution), Tomáš URBÁNEK (203 Czech Republic), Jan CHLÁDEK (203 Czech Republic), Martin LAMOŠ (203 Czech Republic, belonging to the institution), Robert ROMAN (203 Czech Republic, belonging to the institution) and Milan BRÁZDIL (203 Czech Republic, belonging to the institution)

Edition

PSYCHOPHYSIOLOGY, HOBOKEN, WILEY-BLACKWELL, 2016, 0048-5772

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30000 3. Medical and Health Sciences

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 2.668

RIV identification code

RIV/00216224:14740/16:00088218

Organization unit

Central European Institute of Technology

DOI

http://dx.doi.org/10.1111/psyp.12662

UT WoS

000382721300009

Keywords in English

Emotion; Semantic content; Categorization; Intracerebral EEG; Cluster analysis

Abstract

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.

Links

ED1.1.00/02.0068, research and development project

Name: CEITEC - central european institute of technology

GAP103/11/0933, research and development project

Name: Analýza vysokofrekvenčního EEG signálu z hlubokých mozkových elektrod

Investor: Czech Science Foundation

Citovat

CZEKÓOVÁ, Kristína, Daniel Joel SHAW, Tomáš URBÁNEK, Jan CHLÁDEK, Martin LAMOŠ, Robert ROMAN and Milan BRÁZDIL. What's the meaning of this? A behavioral and neurophysiological investigation into the principles behind the classification of visual emotional stimuli. PSYCHOPHYSIOLOGY. HOBOKEN: WILEY-BLACKWELL, 2016, vol. 53, No 8, p. 1203-1216. ISSN 0048-5772. Available from: https://dx.doi.org/10.1111/psyp.12662.

@article{1356110,
   author = {Czekóová, Kristína and Shaw, Daniel Joel and Urbánek, Tomáš and Chládek, Jan and Lamoš, Martin and Roman, Robert and Brázdil, Milan},
   article_location = {HOBOKEN},
   article_number = {8},
   doi = {http://dx.doi.org/10.1111/psyp.12662},
   keywords = {Emotion; Semantic content; Categorization; Intracerebral EEG; Cluster analysis},
   language = {eng},
   issn = {0048-5772},
   journal = {PSYCHOPHYSIOLOGY},
   title = {What's the meaning of this? A behavioral and neurophysiological investigation into the principles behind the classification of visual emotional stimuli},
   url = {http://onlinelibrary.wiley.com/doi/10.1111/psyp.12662/epdf},
   volume = {53},
   year = {2016}
}

TY  - JOUR
ID  - 1356110
AU  - Czekóová, Kristína - Shaw, Daniel Joel - Urbánek, Tomáš - Chládek, Jan - Lamoš, Martin - Roman, Robert - Brázdil, Milan
PY  - 2016
TI  - What's the meaning of this? A behavioral and neurophysiological investigation into the principles behind the classification of visual emotional stimuli
JF  - PSYCHOPHYSIOLOGY
VL  - 53
IS  - 8
SP  - 1203-1216
EP  - 1203-1216
PB  - WILEY-BLACKWELL
SN  - 00485772
KW  - Emotion
KW  - Semantic content
KW  - Categorization
KW  - Intracerebral EEG
KW  - Cluster analysis
UR  - http://onlinelibrary.wiley.com/doi/10.1111/psyp.12662/epdf
L2  - http://onlinelibrary.wiley.com/doi/10.1111/psyp.12662/epdf
N2  - 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.
ER  -

CZEKÓOVÁ, Kristína, Daniel Joel SHAW, Tomáš URBÁNEK, Jan CHLÁDEK, Martin LAMOŠ, Robert ROMAN and Milan BRÁZDIL. What's the meaning of this? A behavioral and neurophysiological investigation into the principles behind the classification of visual emotional stimuli. \textit{PSYCHOPHYSIOLOGY}. HOBOKEN: WILEY-BLACKWELL, 2016, vol.~53, No~8, p.~1203-1216. ISSN~0048-5772. Available from: https://dx.doi.org/10.1111/psyp.12662.

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