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Pregled bibliografske jedinice broj: 500937

Časopis

Autori: Bubić, Andreja; von Cramon, Yves D.; Jacobsen, Thomas; Schröger, Erich; Schubotz, Ricarda I.
Naslov: Violation of expectation : Neural correlates reflect bases of prediction
Izvornik: Journal of cognitive neuroscience (0898-929X) 21 (2009), 1; 155-168
Vrsta rada: članak
Ključne riječi: deviant detection; prediction; premotor cortex; prefrontal cortex; sequencing
Sažetak:
Setting perceptual expectations can be based on different sources of information whose properties determine which functional networks will be involved in implementing preparatory top-down influences and dealing with situations in which expectations are violated. The goal of the present study was to investigate and directly compare brain activations triggered by violating expectations within two different task contexts. In the serial prediction task participants monitored ordered perceptual sequences for predefined sequential deviants. In contrast, the target detection task entailed a presentation of stimuli which had to be monitored for predefined non-sequential deviants. Detection of sequential deviants triggered an increase of activity in premotor and cerebellar components of the “standard” sequencing network and activations in additional frontal areas initially not involved in sequencing, reflecting the detection of a mismatch between the expected and presented stimuli, updating of the underlying sequence representation (i.e. forward model) and elaboration of the violation. In contrast, target detection elicited activations in posterior temporal and parietal areas reflecting an increase in perceptual processing evoked by the non-sequential deviant. The obtained results suggest that distinct functional networks involved in detecting deviants in different contexts reflect the origin and the nature of expectations being violated.
Izvorni jezik: ENG
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
MEDLINE
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Social Science Citation Index (SSCI) (sastavni dio Web of Science Core Collectiona)
Kategorija: Znanstveni
Znanstvena područja:
Temeljne medicinske znanosti,Psihologija
URL Internet adrese: http://www.mitpressjournals.org/doi/abs/10.1162/jocn.2009.21013
Broj citata:
Altmetric:
DOI: 10.1162/jocn.2009.21013
URL cjelovitog teksta:
Google Scholar: Violation of expectation : Neural correlates reflect bases of prediction
Upisao u CROSBI: andbubic@public.hr (andbubic@public.hr), 3. Vel. 2011. u 08:55 sati



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