Multiple-unit activity in the reticular formation of the midbrain and pons was recorded in rabbits during discriminative conditioning of locomotor (wheel-running) avoidance behavior. The conditional stimuli (CS+ and CS-) were pure tones of different auditory frequency, and the unconditional stimulus (US) was a constant-current footshock (1.5-2.5 mA) delivered through the grid floor of the wheel. The pontine, but not the midbrain, sites manifested development during behavioral acquisition, of brief-latency (10-40-ms) discriminative neuronal discharges (i.e., greater discharges to the CS+ than to the CS-). The greatest magnitude of the discriminative discharges in the rostral pontine loci occurred in the first conditioning session. The discriminative response in the caudal loci developed more slowly, and it persisted to the criterial stage of training. Both rostral and caudal pontine loci, during the interval from CS onset to US onset, manifested a progressive build-up of neuronal firing in anticipation of the behavioral response. The occurrence in the rostral and caudal pontine areas, respectively, of early- and late-developing discriminative discharges is analogous to effects observed in past studies in the limbic mesocortical and thalamic systems. These findings provide a basis for establishing the possible functional relatedness or independence of these analogous effects.
This poster presents a new approach to creating video stories at an art, science and technology exhibition. Within the context of an interactive exhibition space, dividing the tasks of recording and editing of digital media between production and post-production can be disruptive to the visitors' experience. Terraria is a graphical and tangible interface which synthesizes performance and editing into a simultaneous act. Pilot studies suggested that young users find this integrated interface engaging for the performance and visualization of movies in real time.
The symbol of the red hand is used by most institutions in Northern Ireland including our own Queen’s University Belfast. This image (fig.1) was made in 1950‘s to encourage visitors to Northern Ireland — the location of our school of architecture at Queen’s University Belfast. The illustration refers to the source of this image — a mythological story concerning a boat race to the island involving two competing chie7ains. Simply put, first to touch dry land would acquire ownership of the island. One of the chieftains senses he is behind in the race and therefore cuts oð one of his hands, throws it forward onto the shore becoming in the act the first to touch terra firma. He gains possession and the nickname Red Hand Larry.
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