The Experiments Of The Rats

826 Words Oct 16th, 2015 4 Pages
Results:

For the experiment we observed a total of 8 trials. Each trial consisted of two rats. The rats were 25-day-old Long-Evans hooded rats. Each rat was randomly assigned to one of two drug groups. The groups were either administered 1.0 mg/kg of Naloxone or an injection of saline. Among the 8 trials, 4 of the trials the rats were given Saline, and among the other 4 trials the rats were given Naloxone
A pin response can be described as when one of the animals lies on its back , with its spinal column on the floor of the testing chamber. The other animal in response stands above the other animal. It appears like the one animal is flipping the other animal onto its back. The mean number of pins in the rats that received Saline were 8.00 (x̅ =8.00). The mean number of pins in the rats that were administered Naloxone were 1.50 (x̅ =1.50) (see figure 1). The standard deviation among the Saline group was 4.24 (σ=4.24). The standard deviation for the groups that were administered Naloxone were 1.29 (σ=1.29).
A rearing response can be described as when one of the animals, without touching the other animal in the testing chamber stands on its two rear legs with both front paws lifted off of the flour of the testing chamber. The mean number of rears in the rats that received Saline were 28.25 (x̅ =28.25). The mean number of rears in the rats that were administered Naloxone were 1.50 (x̅ =21.75) (see figure 2). The standard deviation among the Saline group was 7.80 (σ=7.80). The…
Open Document