Abstract
The effects of alternate-day injections of.25,.75, or 1.0 ml of either 1.5% or.5% formalin subcutaneously upon saline consumption of a.33-M solution were investigated over 8 days. Generally, percentage formalin differences produced the same saline intake, except when measured 8 rather than 24 h after injection when the slower recruitment of sodium need with a.5% solution was evident. The 1.0-ml dosage produced significantly greater saline ingestion across other experimental conditions, while the two lesser formalin volumes did not produce a significant difference in intake. The main effects of formalin injection were on Day 1, with some less impressive effects occurring after Injections 2 and 3.
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Porter, J.J., Relinger, H. Daily sodium intake as a function of time of measurement and formalin injection volume and concentration. Psychon Sci 26, 276–278 (1972). https://doi.org/10.3758/BF03328617
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DOI: https://doi.org/10.3758/BF03328617