The current functional state of local neuronal circuits controls the magnitude of a BOLD response to incoming stimuli. - Frank Angenstein; Karla Krautwald; Henning Scheich (NeuroImage, 2010)

Perforant pathway stimulation as a conditioned stimulus for active avoidance learning triggers BOLD responses in various target regions of the hippocampus: A combined fMRI and electrophysiological study. - Frank Angenstein; Karla Krautwald; Wolfram Wetzel; Henning Scheich (NeuroImage, 2013)

Synchronized electrical stimulation of the rat medial forebrain bundle and perforant pathway generates an additive BOLD response in the nucleus accumbens and prefrontal cortex. - Karla Krautwald; Hoon-Ki Min; Kendall H. Lee; Frank Angenstein (NeuroImage, 2013)

Low frequency pulse stimulation of Schaffer collaterals in Trpm4-/- knockout rats differently affects baseline BOLD signals in target regions of the right hippocampus but not BOLD responses at the site of stimulation. - Marta Bovet-Carmona; Karla Krautwald; Aurélie Menigoz; Rudi Vennekens; Detlef Balschun; Frank Angenstein (NeuroImage, 2019)

Brief neuronal afterdischarges in the rat hippocampus lead to transient changes in oscillatory activity and to a very long-lasting decline in BOLD signals without inducing a hypoxic state. - Alberto Arboit; Shih-Pi Ku; Karla Krautwald; Frank Angenstein (NeuroImage, 2021)