Fast fMRI enables the detection of neural dynamics over timescales of hundreds of
milliseconds, suggesting it may provide a new avenue for studying subsecond neural …

Simple Summary Flickering light is used in research in many different fields. Despite
growing interest in the subject, there is still little known about its effects on the brain. The …

Low-dimensional neural mass models are often invoked to model the coarse-grained activity
of large populations of neurons and synapses and have been used to help understand the …

Recent studies have demonstrated that fast fMRI can track neural activity well above the
temporal limit predicted by the canonical hemodynamic response model. While these …

Typical fMRI analyses often assume a canonical hemodynamic response function (HRF) that
primarily focuses on the peak height of the overshoot, neglecting other morphological …

Cerebrovascular reactivity (CVR) is used as an outcome measure of brain health.
Traditionally, lower CVR is associated with ageing, poor fitness and brain-related conditions …

Several current functional neuroimaging methods are sensitive to cerebral metabolism and
cerebral blood flow (CBF) rather than the underlying neural activity itself. Empirically, the …

In recent decades there has been a growing interest in the role of neuronal oscillations in
the alpha band and how they support cognition. It is clear from intracranial animal …

Hemodynamic responses, in general, and the blood oxygenation level-dependent (BOLD)
fMRI signal, in particular, provide an indirect measure of neuronal activity. There is strong …

In this primer, I provide an overview of the physiological processes that contribute to the
observed BOLD signal (ie, the generative biophysical model), including their time course …