Contribution
A method for studying emotional memory of a real, complex social event under experimental control. Rival fans watch the same game and are cued with the same clips. A shot made by Duke is a good memory for a Duke fan and a bad one for a UNC fan, so positive and negative memories are matched on every perceptual feature. With it the paper separates the brain correlates of a memory’s emotional intensity from those of its valence.
Key insight
Allegiance, not the event, fixes whether a remembered play is good or bad. Across the two sides “the same exact event can be classified as either positive or negative according to the perspective of the fan” (introduction). Fans then remember their own side’s good moments better, which reverses the usual finding with simple stimuli, where negative material is the more intense (Discussion, “Recalling positively- vs negatively-valent plays”).
Assumptions
- Fandom is a stable part of the self. Recruitment rests on Wann’s fan measures: “Individuals whose fan status is important for their self-identity experience intense emotions related to the team’s performance” (Methods, Participants). Fan identification was used to screen, not analysed.
- A yes/no shot outcome indexes memory for the play. Accuracy was set by pilot work to 70–80%, and only correct trials (hits) enter the fMRI analyses.
- Valence and intensity are what the fan says. One combined rating from −4 to +4 per clip, given in the scanner after the memory decision.
- Reverse inference. Midline and temporoparietal activity is read as self-referential processing or mentalizing; the authors call these contributions “currently speculative” (Discussion).
Key results
- Sample and design (Methods). 12 Duke fans (mean age 20.25) and 11 UNC fans (22.64), all male, screened for high self-rated fandom and at least 75% correct on three basketball-knowledge tests. Women were excluded after a pilot in which five female fans recalled shots at 60% (chance 50%). The game, played at UNC in 2001, was unknown to all. Each watched it three times over a week, mostly in groups of 2–3 fans of the same team, the last viewing a day before scanning. 64 clips of 12 s, half positive from each side’s perspective, balanced for makes and misses, shown in game order.
- Behaviour (Results, Behavioral Data; Table 1).
- Overall recall 0.74; Duke 75%, UNC 74%; no group difference in accuracy (P = 0.72), confidence (P = 0.065) or intensity (P = 0.42). Duke fans answered faster (1383 vs 1898 ms, P = 0.006).
- More correct memories were positive than negative (P = 0.042). Positive shots got higher confidence (P = 0.002) and higher intensity (P = 0.001). The authors read the confidence result as confirming Kensinger and Schacter’s study of Red Sox and Yankees fans.
- Ratings went the way allegiance predicts for 88.9% of correctly recalled shots.
- Intensity (Results, Effects of Emotional Intensity; Tables 2, 3). Activity rose with rated intensity in lateral and medial PFC, striatum (globus pallidus, putamen), red nucleus, left temporoparietal junction, posterior cingulate, precuneus and cuneus, temporal cortex, both hippocampi, right amygdala, sensorimotor cortex and cerebellum. Nothing rose for low over high. In hand-drawn medial temporal ROIs, intensity had a main effect (P < .001) and valence did not (P = .096); amygdala signal ran from 0.93 (low) to 2.35 (high).
- Valence (Results, Effects of Emotional Valence; Table 4). Positive over negative: right sensorimotor cortex, left superior PFC (BA 9), right parietal lobules, cingulate (BA 24). Nothing for negative over positive. Confidence boosted the positive–negative difference in right insula, left hippocampus/parahippocampal gyrus, claustrum and left dorsolateral PFC. The predicted orbitofrontal effect could not be tested because of signal dropout.
- Across the rivalry (Conclusions). “Despite strong feelings of opposition to the rival team, this study revealed an emotion-induced resonance in brain activity across rival fans while reflecting on emotionally intense plays.”
Claims
| id | claim | strength | support |
|---|---|---|---|
| C1 | A fan’s allegiance sets the valence of a remembered play, with the event held fixed | strong for the design: identical clips, opposite sides, ratings 88.9% in the expected direction | Methods, Behavioral Data |
| C2 | Fans recall plays good for their side more accurately and confidently, and rate them more intense, than plays bad for it | weak to moderate: N = 23, one game, one-day delay; accuracy difference P = 0.042 | Behavioral Data, Table 1 |
| C3 | Emotional intensity, not valence, modulates amygdala and hippocampal activity at retrieval of these memories | moderate: whole-brain and ROI analyses agree; small sample, hits only | Effects of Emotional Intensity, Tables 2–3 |
| C4 | Positive memories recruit dorsal fronto-parietal attention regions, and with high confidence insula and hippocampus | weak: modest Z-scores, lateralized masks, no correction reported outside the a priori volumes | Effects of Emotional Valence, Table 4 |
| C5 | Intense plays recruit self-referential and social-cognition regions | weak: reverse inference the authors call speculative | Discussion |
Concepts
- emotional intensity versus valence: how strongly a play is felt, versus whether it is good or bad for the fan; rated together on one −4 to +4 scale and analysed apart.
- positivity bias in recall: better and more confident memory for positive events; here for one’s own team’s successes and the rival’s misses.
- fan identification (Wann and Branscombe): how central being a fan of a team is to one’s self-identity; here a screening criterion.
Connections
- The rivalry case (CASE-098). The work was filed for “the memory side” of how a rivalry is handed on. It studies memory of one game, a day after learning it, not transmission.
- Talarico and Moore (LIT-1125), unread. By its LIT summary, fans of the winning side of a Lafayette–Lehigh game later recalled it more accurately and vividly. Botzung’s within-fan positivity bias runs the same way; the two cannot be compared further unread.
- Kensinger and Schacter (2006), cited, not held: memory for a Red Sox–Yankees game in opposing fans, with overconfidence for positive memories.
- Kilduff, Elfenbein and Staw (NOTE-1292). They measure rivalry in the teams and find it a property of the pair; Botzung measures it in the fans and finds the same events stored with opposite signs.
- Berendt and Uhrich (THEORY-1113). They tie rivalry to fans’ identity benefits; Botzung shows identity reaching into memory, but measures no identity variation.
Bearing on the record
- The rivalry case (CASE-098). Three points. They are inferences; the
paper does not discuss rivalry as a relation or its transmission.
- Its situation is the case’s, by accident. Participants learned a rivalry game played years before, which none of them knew, from archive footage and among fellow fans. Their side still fixed what each play meant to them. A new fan learning the rivalry’s old incidents would be in the same position.
- Two sides, one map. Both groups recalled equally well and rated intensity alike, and the authors find “resonance” across them. If the plays each side found intense were the same plays (the paper does not test this), a rivalry would be held in memory as shared salience with opposite valence: a two-sided relation in the fans, not only in the teams.
- Each side’s history is tilted. Fans remember their own side’s successes better. Histories carried by fans would then be two partisan versions of the same record.
- It does not touch A5’s discriminating variation: nothing interrupts transmission, and memory is tested after one day.
- A dated note is proposed for CASE-098 (section 3).
- The owner’s thesis (CLAIM-491). Weakly. A team’s success is stored as the fan’s own good event, and the authors call the fans “highly personally involved with the game despite experiencing it vicariously”. That fits a self that takes in the team. But fan identification was a screening threshold and was not varied, so the paper cannot show that valence follows the extent of the self rather than caring about the team (CLAIM-492). No dated note on the claim.
- No THEORY filed. One small sample and one game.
- No ML instruction.
Limitations
- Small and narrow. 23 men, highly committed fans of two teams; women excluded on a five-person pilot.
- Learned memories, short delay. An archived game seen three times in a lab, tested a day later. Not a lived game, and not long-term memory.
- Binary recall. “In or out” measures one detail per play; vividness and narrative are not measured.
- Valence confounded with intensity. Positive shots were rated more intense. Intensity was modelled as a covariate in the confidence analysis, and the valence contrast is described as controlling for it.
- No identity variable. Fandom was a screen; its strength is not related to any result.
- Figures absent from this copy; the supplementary questionnaires were not seen.
- Reporting errors and typos.
- Every t-test is printed with 23 degrees of freedom. With 23 participants, between-group tests have 21 and within-subject tests 22; the printed p-values match those.
- The confidence reaction-time test repeats the confidence statistic exactly (“t23 = −1.95, P = 0.065”).
- The intensity reaction-time test, t = −1.53, gives p ≈ .14, not the printed 0.16.
- The ROI ANOVA prints “df” in place of every denominator degrees of freedom.
- Aggleton et al. (2000) is cited for the amygdala and negative stimuli, but the reference listed is on cortical inputs to the rat hippocampus.
- “Maguire et al., 2003” in the introduction; the reference is Maguire and Frith 2003. “Buckner and Caroll” for Carroll; “Hearthon” for Heatherton in the Kelley et al. reference.
- “set a P = .05” for “at”; 3.75 × 3.75 × 3.8 mm voxels called “isotropic”.
Open questions
- Do rival fans find the same plays intense? A per-shot comparison of the two groups’ intensity ratings, from these data, would say whether a rivalry gives both sides one map of what mattered.
- Does the positivity bias survive retelling? A design in which fans who learned the game pass it on to new fans, tested weeks later, would bear on CASE-098’s transmission directly.