Summary: A new fMRI study from Kobe University finds that optimistic people share strikingly similar brain activity patterns when imagining future events, while pessimists display far more individual variability. The research shows that optimists process positive and negative scenarios in distinct, consistent ways—often by distancing themselves emotionally from negative outcomes—offering a neural explanation for why optimists tend to be more socially connected and easier to communicate with.
Rather than reframing negative situations as positive, optimists appear to treat negative futures more abstractly and with psychological distance, reducing their emotional impact. These shared cognitive patterns may help explain the everyday sense of being “on the same wavelength” that people often report with optimistic others.
Key Facts:
- Shared Patterns: Optimists show similar neural activity across individuals when imagining future events.
- Emotional Distance: Optimists represent negative scenarios more abstractly and with less emotional intensity.
- Social Link: Common patterns of future thinking may underlie optimists’ stronger social bonds and better mutual understanding.
Source: Kobe University
Main finding: When imagining future events, people who score higher on optimism exhibit mutual similarity in medial prefrontal cortex (MPFC) activity, while less optimistic individuals show more idiosyncratic MPFC responses. This suggests optimism is associated with a shared neural representation of future scenarios that clearly differentiates positive from negative outcomes.
Optimistic people are generally more satisfied with their social relationships and maintain wider social networks. Kobe University psychologist YANAGISAWA Kuniaki and his team asked whether a shared neural representation of the future might help explain this social advantage.
“Recent work has shown that people who occupy central positions in social networks often react to stimuli in similar ways,” Yanagisawa says. “We wondered whether people who share a positive outlook on the future might actually envision that future similarly at the neural level, which could make it easier to understand each other’s perspectives.”
To explore this question, Yanagisawa built an interdisciplinary team combining social psychology and cognitive neuroscience. They recruited 87 participants spanning the full range from pessimism to optimism and asked them to imagine a variety of future episodic scenarios while undergoing functional magnetic resonance imaging (fMRI). This method allowed the researchers to map how participants’ mental simulations of future events translated into spatial patterns of brain activity.
Using intersubject representational similarity analysis, the researchers found that optimistic participants produced highly similar patterns of MPFC activity when imagining future events. Less optimistic participants, by contrast, showed diverse, individualized MPFC patterns. Summarizing their result with a literary echo, the team wrote: “Optimistic individuals are all alike, but each less optimistic individual imagines the future in their own way.”
A notable aspect of the findings is that optimism was associated not with simply reinterpreting negative events positively, but with a clearer neural separation between positive and negative futures. Optimistic participants showed stronger differences in neural patterns for positive versus negative scenarios than did pessimistic participants. Yanagisawa explains: “Optimism does not necessarily involve turning negatives into positives. Instead, optimistic individuals often process negative scenarios at a greater psychological distance, which reduces their emotional weight.”
The study also applied individual-difference multidimensional scaling to MPFC activity. This analysis revealed that imagined events’ referential target (self or partner) and emotional valence mapped onto distinct dimensions of MPFC representation. Importantly, a participant’s position along the emotional dimension correlated with their optimism score, indicating that more optimistic people mentally separate good and bad futures more distinctly.
Yanagisawa highlights the broader significance: “The everyday feeling of ‘being on the same wavelength’ is not just a metaphor. For optimists, a common neural concept of the future may make mutual understanding and communication easier. But it raises further questions: is this shared mechanism innate, or does it develop through experience and social interaction?”
The team sees this line of research as relevant to understanding loneliness and the mechanisms that enable effective social communication. “If we can trace how shared mental models of the future emerge,” Yanagisawa says, “we may be able to design interventions that help people connect and communicate more successfully.”
Funding: This research was supported by the Japan Society for the Promotion of Science (grants JP26780342, JP19H01747) and the Japan Science and Technology Agency (grant JPMJRX21K3). The work involved collaboration with researchers from Kyoto University, Osaka University of Comprehensive Children Education, La Trobe University, and Kindai University.
About this optimism and neuroscience research news
Author: Daniel Schenz
Source: Kobe University
Contact: Daniel Schenz – Kobe University
Image: Image credited to Neuroscience News
Original Research (open access):
“Optimistic people are all alike: Shared neural representations supporting episodic future thinking among optimistic individuals” by YANAGISAWA Kuniaki et al. Published in PNAS. DOI: 10.1073/pnas.2511101122
Abstract
Optimistic people are all alike: Shared neural representations supporting episodic future thinking among optimistic individuals
Optimism is a central personality trait that shapes how people think about the future, emphasizing positive outcomes and downplaying negative ones. This study asks how such individual differences are represented in the brain during episodic future thinking.
Across two fMRI experiments, participants imagined a series of episodic scenarios that varied in emotional valence while sometimes imagining themselves and sometimes imagining a partner. Intersubject representational similarity analysis showed that more optimistic individuals had similar neural representations in the medial prefrontal cortex (MPFC), while less optimistic participants displayed more idiosyncratic MPFC representations.
Further, multidimensional scaling of MPFC activity mapped referential target and emotional valence onto distinct representational dimensions. Crucially, participants’ positions along the emotional dimension correlated with their optimism scores, indicating that optimistic individuals mentally differentiate positive from negative future events more sharply.
These results suggest that shared MPFC processing among optimistic individuals supports episodic future thinking that promotes psychological differentiation between good and bad futures, a mechanism that may facilitate social understanding and connectedness.