Corrigendum to "Continuous theta-burst stimulation (cTBS) over the lateral prefrontal cortex alters reinforcement learning bias" [Neuroimage 57 (2) (2011) 617-623]

The authors regret having misquoted the article from Ko JH et al. (2008). (“Theta burst stimulation-induced inhibition of dorsolateral prefrontal cortex reveals hemispheric asymmetry in striatal dopamine release during a set-shifting task: a TMS-[(11)C]raclopride PET study”) in the present publication. This happened due to a misreading of the paper and led to a partial reversion of the findings reported by Ko et al. Even though this does not affect the overall conclusions derived from the data in Ott et al. (2011), the authors do believe that it is appropriate to re-appraise Ko et al. (2008) in the context of their own manuscript. Correction 1: Recently, several studies have shown that repetitive transcranial magnetic stimulation (rTMS) applied to the prefrontal cortex can trigger the release of dopamine in both the striatum (Ko et al., 2008; Pogarell et al., 2007, 2006; Strafella et al., 2001) and in distant prefrontal areas (Cho and Strafella, 2009). Ko et al. (2008) should be removed as a quotation at this point. After this paragraph, the following should be added: Another study, however, has reported a decrease of free dopamine in the striatum after left-hemispherical cTBS (Ko et al., 2008). Correction 2: A surprising finding has been that stimulation of the left but not the right dorsolateral prefrontal cortex (DLPFC) leads to increased striatal DA (Strafella et al., 2001; Pogarell et al., 2007, 2006) in studies using both positron emission tomography (PET) and single photon emission computed tomography (SPECT). The magnitude of DA release was comparable to chemical challenge with amphetamine (Pogarell et al., 2007) and paralleled by impaired performance in the Montréal Card Sorting Test (MCST), a task requiring cognitive set-shifting (Ko et al., 2008). This should be rephrased as the following: A surprising finding has been that stimulation of the left but not the right dorsolateral