What does the radial arm maze measure?
What does the radial arm maze measure?
The Radial Arm Maze (RAM) was designed by Olton and Samuelson (1976) to measure spatial learning and memory in rats. It is an apparatus consisting of eight horizontal equidistantly spaced arms (usually 57 × 11 cm) radiating from a small circular central platform (30 cm in diameter) elevated (70 cm) off the floor.
Who invented radial arm maze?
David S Olton
The radial arm maze was first designed by Drs David S Olton and Robert J Samuelson in 1976 [1] as an apparatus for testing reference and working memory in rodents and for the modeling of “serial learning”, the term used to describe the means by which we learn and recall lists and other forms of sequential information.
Does the radial arm maze necessarily test spatial memory?
Since its design 25 years ago (Olton & Samuelson, 1976), the eight-arm radial maze has become very popular and is now widely used to assess spatial memory in rodents. Even a 0-s confinement is sufficient to prevent clockwise strategies, but rats seem to develop other stratagems which do not imply spatial memory.
What is radial arm water maze?
The radial arm water maze (RAWM) contains six swim paths (arms) extending out of an open central area, with an escape platform located at the end of one arm (the goal arm). The goal arm location remains constant for a given mouse.
Which is true about a typical radial arm maze experiment?
Which is TRUE about a typical radial-arm maze experiment? In a typical radial-arm maze experiment, food is continually available in one arm so the most efficient strategy for obtaining food is therefore to learn where that arm is.
What does the T maze measure?
T Maze Spontaneous Alternation is a behavioral test for measuring exploratory behavior in animals, especially rodent models for CNS disorders. This test is based on the willingness of rodents to explore a new environment, i.e. they prefer to visit a new arm of the maze rather than a familiar arm.
What is Y maze?
Y Maze Spontaneous Alternation is a behavioral test for measuring the willingness of rodents to explore new environments. Testing occurs in a Y-shaped maze with three white, opaque plastic arms at a 120° angle from each other.
Which type of movement is possible in case of radial arm?
4. Which type of movement is possible in case of radial arm? Explanation: Only up and down movement is possible in this case. Generally, horizontal movement is not possible in radial arm.
Which is true about a typical radial arm maze experiment quizlet?
What is spatial information psychology?
spatial memory, storage and retrieval of information within the brain that is needed both to plan a route to a desired location and to remember where an object is located or where an event occurred.
What is the T maze used for?
Purpose. The concepts of T-mazes are used to assess rodent behavior. The different tasks such as left-right discrimination and forced alternation are mainly used with rodents to test reference and working memory.
What is passive avoidance test?
The Passive Avoidance task is a fear-aggravated test used to evaluate learning and memory in rodent models of CNS disorders. In this test, subjects learn to avoid an environment in which an aversive stimulus (such as a foot-shock) was previously delivered.
When was the radial arm maze first used?
The radial arm maze was developed by Olton and Samuelson in 1976 to measure the special learning and memory in rats. Now it has been widely used in other rodents like mice. The radial arm maze apparatus consists of eight horizontal arms placed radially around a central platform above the floor.
How is the radial arm maze related to visual cues?
In one experiment utilizing the radial arm maze, it was shown that spatial relations among hidden target sites control spatial decisions that rats make and are unrelated to visual or perceptual cues that are related to certain locations.
What are two types of memory in radial arm maze?
The radial arm maze is a commonly used task to assess two types of memory: reference memory and working memory. Working memory corresponds to a critical cognitive domain required for the representation of objects or places during goal-directed behavior.
How many novels can a rat make in a radial arm maze?
Olton and Samuelson found that rats have excellent memories for visited and unvisited arms; they made, on average, about 7.0 novel entries in their first 8 choices, and thus were 88% correct. Chance performance with eight arms would be 5.3 novel entries in the first 8 choices (66% correct).
