False recognition of emotional stimuli is lateralised in the brain: An fMRI study |
| |
Authors: | Marchewka A Brechmann A Nowicka A Jednoróg K Scheich H Grabowska A |
| |
Institution: | aNencki Institute of Experimental Biology, Department of Neurophysiology, Laboratory of Psychophysiology, 3 Pasteur Street, 02-093 Warsaw, Poland;bLeibniz Institute for Neurobiology, Non-Invasive Brain Imaging, Magdeburg, Germany |
| |
Abstract: | We have investigated whether the left (LH) and right (RH) hemisphere play a different role in eliciting false recognition (FR) and whether their involvement in this memory illusion depends on the emotional content of stimuli. Negative and neutral pictures (taken from IAPS) were presented in the divided-visual field paradigm. Subjects task was to indicate whether the pictures had already been presented or not during the preceding study phase. FR rate was much higher for the RH than the LH presentations. In line, FR resulted in activations mainly in the right prefrontal cortex (PFC) for either RH or LH presentations. Emotional content of stimuli facilitated the formation of false memories and strengthened the involvement of the right PFC in FR induction. |
| |
Keywords: | False recognition Lateralization Prefrontal cortex Emotions fMRI |
本文献已被 ScienceDirect PubMed 等数据库收录! |