| Description | Study |
|---|
| devised the frustration/aggression hypothesis upon which the cue arousal hypothesis was based | |
| argued that people in a group fall under the influence of a collective mind | |
| Gave testosterone to men playing a frustrating computer game and found aggressive responses increased | |
| Studied deindividuation, finding people were more lilkely to discuss porn if their individuality was reduced | |
| Formed the basis of relative deprivation by noting that during 1930s recession-era USA, there was an increase in anti-black violence | |
| analysed 500 violent attacks in Northern Island, suggesting a link between deindividuation and level of violence | |
| Found that female spatial ability improves with testosterone increases | |
| Studied trick or treaters and the effects of deindividuation | |
| First identified the 47 XYY Karyotype | |
| examined Jackdaws and their appeasement tactics | |
| Suggested that humans have the ability to attach an 'enemy' label not just to humans, but animals, objects and ideas | |
| Compared XYY and XY men, and found no difference except in height | |
| Argued that people think differently in groups, leading to group behavior | |
| stated there are two types of aggression: benign and malignant | |
| explored the basal and reciprocal models of testosterone | |
| did a correlational study of other cultures and found deindividuated warriors were more aggressive | |
| Devised the value-added theory to explain aggression in groups | |
| Showed that selective breeding could lead to more aggressive behaviour using mice | |
| Suggested there is a correlation between androgen levels and aggression in males and females | |
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