Dissecting medial temporal lobe contributions to item and associative memory formationShaozheng Qin
Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, 6500 HB Nijmegen, The Netherlands
Neuroimage 46:874-81. 2009
..Our findings therefore suggest that different MTL subregions indeed play distinct roles in the formation of item memory and inter-item associative memory as expected by several dual process models of the MTL memory system...
- Acute psychological stress reduces working memory-related activity in the dorsolateral prefrontal cortex
Shaozheng Qin
Centre for Cognitive Neuroimaging, Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, Nijmegen, The Netherlands
Biol Psychiatry 66:25-32. 2009
..However, it remains unknown whether acute stress has immediate effects on WM-related prefrontal activity...
- Understanding low reliability of memories for neutral information encoded under stress: alterations in memory-related activation in the hippocampus and midbrain
Shaozheng Qin
Radboud University, Nijmegen, The Netherlands
J Neurosci 32:4032-41. 2012
..Thus, one may speculate that loss of specificity may yield less discrete memory representations at time of encoding, thereby causing a more liberal response bias when probing these memories...
- From specificity to sensitivity: how acute stress affects amygdala processing of biologically salient stimuli
Hein J F van Marle
Donders Institute for Brain, Cognition and Behaviour, Medical Center, Radboud University Nijmegen, Nijmegen, The Netherlands
Biol Psychiatry 66:649-55. 2009
..Hence, we developed an integrated design using functional magnetic resonance imaging to investigate the immediate effects of controlled stress induction on amygdala function...
- Stress-related noradrenergic activity prompts large-scale neural network reconfiguration
Erno J Hermans
Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands
Science 334:1151-3. 2011
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- Subjective sense of memory strength and the objective amount of information accurately remembered are related to distinct neural correlates at encoding
Shaozheng Qin
Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, Nijmegen, The Netherlands
J Neurosci 31:8920-7. 2011
..Thus, our study dissociated two distinct phenomena that are usually described as memory strength...
The effect of moderate acute psychological stress on working memory-related neural activity is modulated by a genetic variation in catecholaminergic function in humansShaozheng Qin
Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen Medical Centre Nijmegen, Netherlands
Front Integr Neurosci 6:16. 2012
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- Acute stress modulates genotype effects on amygdala processing in humans
Helena Cousijn
Donders Institute for Brain, Cognition and Behavior, Radboud University Nijmegen, Nijmegen, The Netherlands
Proc Natl Acad Sci U S A 107:9867-72. 2010
..Our results demonstrate that genetic effects on brain operations can be state dependent, such that they only become apparent under specific, often environmentally controlled, conditions...
- Phasic deactivation of the medial temporal lobe enables working memory processing under stress
Helena Cousijn
Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behavior, 6500 HB Nijmegen, The Netherlands
Neuroimage 59:1161-7. 2012
..The temporal suspension of hippocampal processing in favor of more task relevant processes may allow subjects to maintain normal performance levels under moderate stress...
- Enhanced resting-state connectivity of amygdala in the immediate aftermath of acute psychological stress
Hein J F van Marle
Radboud University Nijmegen, Donders Institute for Brain, Cognition, and Behaviour, P O Box 9101, NL 6500 HB Nijmegen, The Netherlands
Neuroimage 53:348-54. 2010
..Characterization of the post-stress brain state may provide initial insight into the early phases of psychological trauma formation...
- Stress-induced reduction in reward-related prefrontal cortex function
Lindsey Ossewaarde
Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behaviour, Centre for Cognitive Neuroimaging, PO Box 9101 6500 HB, Nijmegen, The Netherlands
Neuroimage 55:345-52. 2011
..Our findings thus suggest that stress-related increases in habitual and reward-seeking behaviors may be triggered primarily by an impairment of such PFC-dependent cognitive control mechanisms...
