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Related Experiment Video

Updated: Jul 20, 2026

A New Method for Inducing a Depression-Like Behavior in Rats

A New Method for Inducing a Depression-Like Behavior in Rats

Published on: February 22, 2018

Regional intelligence and suicide rate in Denmark.

Martin Voracek¹

¹Department of Basic Psychological Research, School of Psychology, University of Vienna, Liebiggasse 5, Room 03-42, A-1010 Vienna, Austria. martin.voracek@univie.ac.at

Psychological Reports

|August 29, 2006

Summary

Higher regional intelligence correlates with increased suicide rates, aligning with prior geographical studies. This ecological analysis examined intelligence and suicide across Denmark

Area of Science:

Psychology
Sociology
Public Health

Background:

Geographical studies indicate a link between intelligence and suicide rates.
Previous research by Lester and Voracek supports an ecological correlation.

Purpose of the Study:

To investigate the ecological correlation between regional intelligence and suicide rates in Denmark.
To determine if findings from cross-national studies apply within a single nation.

Main Methods:

Ecological study design.
Analysis of aggregate-level data across seven major geographical regions of Denmark.
Correlation analysis between regional intelligence metrics and suicide rates.

Main Results:

A positive ecological correlation was observed between regional intelligence and suicide rate in Denmark.

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Last Updated: Jul 20, 2026

A New Method for Inducing a Depression-Like Behavior in Rats

A New Method for Inducing a Depression-Like Behavior in Rats

Published on: February 22, 2018

This finding is consistent with previous international and within-nation geographical research.

Conclusions:

The study supports a positive ecological association between intelligence and suicide rates within Denmark.
Findings suggest this correlation may be a consistent geographical phenomenon.