You will be presented with a citation segment from the section of a research paper. Classify the intent behind this citation by choosing from one of the following categories:

- Method: Cites the paper for its methodology or procedure.
- Background: Cites the paper to provide background information.
- Result: Cites the paper for its findings or results.

Your answer should be a single word from the following list of options: ["Method", "Background", "Result"]. Do not include any other text in your response.

Citation sentence:

Anodal (positive) current is thought to reduce the firing threshold of neurons in brain regions under the electrode, while cathodal (negative) current is thought to raise the firing threshold (Nitsche and Paulus, 2000; Stagg and Nitsche, 2011).
Background