Please get in contact with us if you are interested in any specific data sets or resources
The haemodynamic response in neonates, and in particular preterm neonates has markedly different morphology and temporal characteristics to the canonical adult function. The lag to positive peak time is significantly delayed and there is a deeper undershoot at term equivalent age. If you are analysing task based BOLD fMRI data, we strongly suggest that you consider using an age appropriate HRF model for convolution into your general linear model.
Please refer to these references if you are using this data or optimising you paradigm with it:
- Tomoki Arichi, Gianlorenzo Fagiolo, Marta Varela, Alejandro Melendez-Calderon, Alessandro Allievi, Nazakat Merchant, Nora Tusor, Serena J Counsell, Etienne Burdet, Christian F Beckmann, A David Edwards. Development of BOLD signal hemodynamic responses in the human brain Neuroimage 2012; 63(2): 663-73.
- Rhodri Cusack, Conor Wild, Annika C Linke, Tomoki Arichi, David SC Lee, Victor K Han. Optimizing stimulation and analysis protocols for neonatal fMRI. PloS One 2015; 10(8): e0120202.
Neonatal HRF as a function of age expand
by G.Fagiolo and T.Arichi
Data information expand
These are calculated from the data of 54 subjects between 32 and 44 weeks post-menstrual age using somatosensory stimulation of the right hand. Please quote the paper in reference 1.
Select age group between 32 and 38 weeks (press ENTER if necessary):
Functional activation maps are available for download from http://brain-development.org/activation-maps/
- These include the preterm infant homunculus https://brain-development.org/somatotopicmap/ described in: Dall'Orso et al.
Somatotopic mapping of the developing sensorimotor cortex in the preterm human brain. Cerebral Cortex 2018; 28(7): 2507-15.
- Group activation maps of the fMRI clusters https://brain-development.org/activation-maps-related-to-spontaneous-delta-brush-activity/ associated with posterior-temporal spontaneous delta brush events in preterm infants described in Arichi et al. Localization of spontaneous bursting neuronal activity in the preterm human brain with simultaneous EEG-fMRI Elife 2017; 6: e27814.