The BOLD response typically peaks ~4–6 seconds after neural firing and returns to baseline after ~10–12 seconds. This means that the fMRI signal at time t reflects neural activity from several seconds earlier, i.e.: from the stimulus presented several seconds earlier. The image shows the canonical hemodynamic response function (HRF) presented in neuroscience literature and implemented in many frameworks. In practice, the exact shape and timing vary across voxels depending on vascularization and other physiological factors.
“We find that consumer prices have risen disproportionately in categories facing larger tariff increases,” Goldman Sachs said in a note to investors and analysts last autumn. An updated forecast this week estimated that “tariff pass-through increased core PCE (personal consumption expenditure) prices by about 0.7% through January and will raise prices by a further 0.1% in the remainder of 2026.”
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Although, I do seem to recall someone came along and suggested that Python could be 10 times faster or 100 times faster, having no actual understanding of Python itself, but just, oh, we have done this with other languages, so I can do it with Python too.
"The Dutch are rich and they work less – but the question is, how sustainable is this?" says Nicolas Gonne, economist at the OECD. "There's only so much you can do with few workers.