Memory Training (image) Society for Experimental Biology Caption During memory training of the pond snail, the pneumostome is gently poked with a wooden stick, which causes it to close. Under normal conditions the snail remembered the poke and reduced the number of times it came up for air a day later, showing long-term memory. Credit Ken Lukowiak Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.