BackgroundRecent open-label trials show that psychedelics, such as ayahuasca, hold
promise as fast-onset antidepressants in treatment-resistant depression.MethodsTo test the …

The experiences induced by psychedelics share a wide variety of subjective features,
related to the complex changes in perception and cognition induced by this class of drugs. A …

Graph theoretical analysis of functional magnetic resonance imaging (fMRI) time series has
revealed a small-world organization of slow-frequency blood oxygen level-dependent (BOLD…

In a temporal difference learning approach of classical conditioning, a theoretical error signal
shifts from outcome deliverance to the onset of the conditioned stimulus. Omission of an …

We investigated human hippocampal functional connectivity in wakefulness and throughout
non-rapid eye movement sleep. Young healthy subjects underwent simultaneous EEG and …

Pranayama refers to a set of yoga breathing exercises. Recent evidence suggests that the
practice of pranayama has positive effects on measures of clinical stress and anxiety. This …

Homeostasis of the human stress response system is critically maintained by a hierarchical
system of neural and endocrine elements for which intact negative feedback is important to …

Functional magnetic resonance imaging (fMRI) has just completed 20 years of existence. It
currently serves as a research tool in a broad range of human brain studies in normal and …

Background: Mirror therapy (MT) is becoming an alternative rehabilitation strategy for various
conditions, including stroke. Although recent studies suggest the positive benefit of MT in …

The increase of relative cerebral blood flow (rCBF) may contribute for a change in blood
oxygenation level dependent signal (BOLD). The main purpose of this study is to investigate …