Methods Subjects: 12 female Long Evans rats (6 handled, 6 non-handled) and 12 male black and white rats (6 often-handled, 6 infrequently-handled) were used for this study. Each rat was approximately 125 days old (4 months and 2 days) on the day of the study (born on 7/5/2017). They were housed in cages – 2 rats per cage – of the same sex, while receiving food and water ad libitum under a 12hr:12hr light-dark cycle. Half of the male and female rats were handled twice a week for two weeks (8/29/2017-9/6/2017) (i.e., being held by student researchers and stroked on their backs), while half the rats were left untouched in their cages except for when used in one other experiment. One unhandled female rat was excluded from research analysis due …show more content…
Trials were repeated for each marker indicating the different starting positions: the north, south, east, and west sides of the maze. The amount of time it took each rat to find the platform was recorded. Tests with ethanol and saline injection were performed a day after the rats were trained. Before being put in the maze, rats were either injected with varying doses of ethanol solution or saline. One student was responsible for taking each individual rat out of his/her cage and placing them in one specific area of the maze and facing the exterior; the positions they were placed in were the north, south, east, and west regions of the maze. The rats’ goal was to navigate through the maze and find a raised platform, for which they had to wait on for ten seconds before being removed and placed back in their cages. Rats from one cage would alternate trials; for instance, the rat marked A would be placed back in its cage after being tested at the south end and would wait for further trials until rat B immediately underwent the same condition. One cage was tested at a time. Another student was in charge of recording the time it took each rat to find the platform for each trial, while someone else recorded the time each rat spent on the platform before it was removed after ten seconds. If a rat found the platform but escaped before ten seconds, it was aided back onto the platform until ten seconds was reached. One student was also responsible for
Purpose: To become familiar with the International System of Units and common laboratory equipment and techniques. To learn how to determine volume, mass, length, and temperature of a wide variety of items. To learn how to calculate density and concentration of dilutions.
The purpose of this particular lab was to experiment and identify the chemical and physical changes throughout the experiment.
They were subjected to gears or buttons and scheduled reinforcement. The experiment in this chapter deals with a box of rats he receives from one of his colleagues. He wanted to see if he could use those rats to see if he could train them using positive reinforcement. He wanted to see if hungry rats placed in a box could learn to press a lever if they were rewarded with food. The box had a lever on the side that the rats would eventually find and accidentally knock or
Procedure: Using distilled water, premeasured containers and objects determine displacement of fluids and density of objects. Use ice and heat measure temperatures in Celsius, Fahrenheit and Kelvin.
Experimental design is a critical component of a behavior change program. The manner in which data are collected and then visually displayed are of the highest priority in ABA. Experimental design provides the visual analysis of the functional relation between the independent and dependent variables. Cooper and colleagues define experimental design as the arrangement of conditions so that comparisons of the effects of the presence or absence of independent variables can be made. . It provides the visual display to demonstrate whether an intervention is effective.
Students will carefully observe acts of aggression and prosocial behavior on television, report their observations, and analyze their data to draw conclusions.
C. An unknown, rectangular substance measures 3.6 cm high, 4.21 cm long, and 1.17 cm wide.
White Rat: as they began the test with the white rat it seemed to be going in a forward direction, as the wrapped started crawling towards him he showed very little stimulation. But as they introduce the rat the second time and let it touch his hand he withdraws immediately leaned to one side but did not cry this
- The goal of this practice is to get at least 3 consistent recordings from at least 2 mice in a day.
The Psychology Department is requesting permission from your committee to use 10 rats per semester for demonstrations in a physiological psychology class. The students will work in groups of three: each group will be given a rat.
- This week marks 10th week of the Fmr1 rat training and we have 1 rat that has almost reached the end of the challenge trials. It performed on the challenge trial for shorter stimulus duration time - 0.7sec and has performed with 78% accuracy with fewer than 14% omissions. We have one wild type rat that finished the challenge trial series and we are expecting this 2nd wild type to finish soon
The purpose of the experiment used electrical shocks to test Seligman's and Maier's psychological theory. When the experiment was completed, the results collected were as follows: In the escape group, the time it took for the dogs to press the panel and
The experiment lasted 15 consecutive days. During the experiment, the rats were placed into 12 identical operative chambers which was used for all behavioral training and testing. Each chamber had an automatic retractable lever
The duration of the training session was 19:17. The rat was reinforced whenever it displayed any of the approximated behaviors. The shaping process was different
The inventors used six homing-pigeons which were paginated from 91 to 96 and kept at 85% ± 15g of their free-feeding body weight. Each of the pigeons took a place individually in their home cage. In the morning, when needed to uphold their designated body weights, at 9:30 they were provided mixed grain. Grit and water were accessible at any time. Each of the cages were designed as experimental chambers. There were three plastic keys, located separately on one of the cage’s wall. Each key could be illuminated red or yellow; responses to lit up keys exceeding approximately 0.1 N were documented. Right under the center key was a hole through which food was delivered. After this delivering lights turned off, the hole closed, and the hopper containing wheat was raised for 2.5 s. In addition, no one entered the room during experimental sessions and pigeons were able to hear and see others from their cages. Since the pigeons have had wide experience in working on spontaneous schedules, any pre-training was not compulsory. Daily assemblies started at 1pm for all of the pigeons in a time-shifted environment, when the room lights were on from 12am until 4 pm. Sessions lasted for one hour or until 60 food carriages had befallen. It began when both left- and right-key lights floodlit red, display the manifestation of a variable-interval schedule on each key. In each pilot choosing a key, reliant on the condition-a response was nine times more probable to produce food than the other