Fig. 2From: Effect of basal forebrain stimulation on extracellular acetylcholine release and blood flow in the olfactory bulbEffects of focal chemical stimulation of the HDB on blood flow in the olfactory bulb ipsilateral to the stimulation. a Diagram of the experiment demonstrating the measurement of cerebral blood flow using a laser speckle contrast imager, and microinjection needle in the HDB. b The HDB area is indicated by the shaded portion. c, d Sample recordings of the olfactory blood flow and mean arterial pressure following a microinjection of l-glutamate (c 50 nmol in 50 nl, d 100 nmol in 100 nl) into the HDB in one rat. e Summary of responses (n = 8). Each point and vertical bar represents a mean ± SEM. Slight changes in the olfactory blood flow and mean arterial pressure were not statistically significantBack to article page