A simple burst of visible light can now create skin-safe electrodes that could transform medical and wearable electronics.
New research suggests that specific personality traits may amplify the way childhood adversity shapes an individual’s approach to life. A study published in the journal Personality and Individual Differences provides evidence that subclinical psychopathy strengthens the link between childhood trauma and “fast” life history strategies. The findings indicate that for those who have experienced severe early difficulties, certain dark personality traits may function as adaptive mechanisms for survival.
Psychologists use a framework called Life History Theory to explain how people allocate their energy. This theory proposes that all living organisms must make trade-offs between investing in their own growth and investing in reproduction. These trade-offs create a spectrum of strategies that range from “fast” to “slow.”
A fast life history strategy typically emerges in environments that are harsh or unpredictable. Individuals with this orientation tend to prioritize immediate rewards and reproduction over long-term planning. They often engage in riskier behaviors and invest less effort in long-term relationships. This approach makes evolutionary sense when the future is uncertain.
A new study published in Applied Psychology provides evidence that the belief in free will may carry unintended negative consequences for how individuals view gay men. The findings suggest that while believing in free will often promotes moral responsibility, it is also associated with less favorable attitudes toward gay men and preferential treatment for heterosexual men. This effect appears to be driven by the perception that sexual orientation is a personal choice.
Psychological research has historically investigated the concept of free will as a positive force in social behavior. Scholars have frequently observed that when people believe they have control over their actions, they tend to act more responsibly and helpfully. The general assumption has been that a sense of agency leads to adherence to moral standards. However, the authors of the current study argued that this sense of agency might have a “dark side” when applied to social groups that are often stigmatized.
The researchers reasoned that if people believe strongly in human agency, they may incorrectly attribute complex traits like sexual orientation to personal decision-making. This attribution could lead to the conclusion that gay men are responsible for their sexual orientation.