#Thai

A new study in the International Journal of Psychophysiology examines how narcissistic traits shape physiological responses during dialogue. Led by a senior researcher, the team investigates whether individuals with pronounced narcissistic tendencies show heightened arousal when recounting moments of receiving admiration. The findings provide a fresh perspective on narcissism and everyday conversations, with clear relevance for Thai readers who navigate social cues within nuanced cultural norms.

Narcissism presents in two main forms: grandiose and vulnerable. Grandiose traits emphasize confidence and dominance, while vulnerable traits reflect insecurity and defensiveness. Across both forms, the core pattern is a need for validation. The study probes this through carefully designed conversation tasks.

A small pilot study suggests the brain may tap its own energy reserves during intense endurance efforts. Spanish researchers observed changes in brain white matter among marathon runners, hinting at a form of neuroplasticity that could help preserve function under extreme physical stress.

Researchers conducted MRI scans on ten endurance runners (eight men and two women) before and after a 42-kilometer race. The scans showed a measurable drop in myelin, the fat-rich sheath around nerve fibers that facilitates rapid signaling. The decrease was most evident in brain regions responsible for movement, balance, sensory processing, and emotion. Notably, myelin levels began to recover within 24 to 48 hours after the race and largely returned to baseline within two months for the six participants who had follow-up scans.