... on incidents of group violence which was based on a naturalistic study which has ecological validity and confirms that temperature can act as a stressor leading to an aggressive response, however if temperature increases too high then aggression decreases again. On the other hand, however there are studies which do not support the notion that aggression decreases again when heat becomes extreme. Andersson (1989) found that acts of extreme aggression continued to increase as the temperature rose. The extreme aggressive cases were that of assault, rape and murder which therefore are less common than everyday aggression. This is also backed by another study by Rotter (1993) who found that sex crimes occurred more frequently when the temperature is higher. Noise is also said to be an environmental stressor and affect our levels of arousal and aggression. Glass et al. (1969) conducted a laboratory experiment where 60 students had to complete cognitive tasks under 4 ...

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