---
title: Do patas monkeys show premenstrual syndrome-like behavior changes during their menstrual cycle?
description: Researchers found no clear evidence that captive patas monkeys show behavior changes during their menstrual cycle or specifically during the premenstrual phas
url: https://niyora.com/research/papers/no-evidence-for-premenstrual-behavioral-changes-in-captive-patas-monkeys-1993/
---

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- Do patas monkeys show premenstrual syndrome-like behavior changes during their menstrual cycle?

Study, 1993

# Do patas monkeys show premenstrual syndrome-like behavior changes during their menstrual cycle?

Researchers found no clear evidence that captive patas monkeys show behavior changes during their menstrual cycle or specifically during the premenstrual phase.

 Early or limited evidence

Captive patas monkeys

## What they did

Observed captive patas monkeys throughout their menstrual cycle, recording their social and aggressive behaviors, with special attention to the premenstrual and menstrual phases.

## What they found

There was no significant evidence of changes in social or aggressive behaviors throughout the menstrual cycle, or specifically during the premenstrual and menstrual phases.

## What it means for you

Patas monkeys do not show PMS-like behavior changes, which suggests these symptoms may be unique to humans. Since this is an animal study from a small population, it doesn't directly apply to humans, but it raises questions about what makes humans different.

## About the study

Original title No evidence for premenstrual behavioral changes in captive patas monkeys Authors James Loy, M. LAVELLE, H. MEDERER et al. Journal Mammalia Year 1993 Study design Study What was tested None; observational study Read the paper [doi.org/10.1515/mamm.1993.57.4.491](https://doi.org/10.1515/mamm.1993.57.4.491)

## Topics

[Premenstrual syndrome (PMS)](https://niyora.com/research/topics/condition-pms/)

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