Undergraduate Category: Social Sciences, Business, and Law Degree Level: Psychology Abstract ID# 600 Time is of the Essence: the Effect of Timing on Affective Vision Abstract: Arcidiacono, R., Audi, J., McClure, D., Smith, M., Sears, L., Kopec, J., Siegel, E.H., Wormwood, J., Quigley, K., & Barrett, L.F. Unseen emotional information affects the way we perceive neutral stimuli - but the temporal boundaries of this effect are still unknown . This study utilized a mirrored stereoscope to present two images at once to a participant. Continuous Flash Suppression (CFS) was used to render an emotional face presented to one eye invisible while presenting a neutral face to the other eye that participants were consciously able to see. Previous research suggests the unseen, emotional face will influence participants’ ratings of the trustworthiness, likeability, and reliability of the seen neutral faces. This study aims to explore the temporal boundaries of this person perception effect. Seen, neutral faces were presented concurrently, 150 ms before, or 150 ms after each unseen, emotional face. We hypothesized the influence of the unseen, emotional face would be strongest during the concurrent trials and that this effect would diminish as the time interval between the two faces increased. As predicted, seen neutral faces were rated more positively when paired with unseen smiling faces and rated more negatively when paired with unseen scowling faces. However, this effect was only significant in the concurrent timing condition. We would not expect this tight temporal coupling to be necessary if the affective faces were simply priming participants. Thus, these results are inconsistent with a priming interpretation. Instead, these results provocatively suggest that affective information may be incorporated into the visual pathway. Future research in our lab will test whether the unseen emotional faces can actually change participants’ visual perception. Method information, such as one’s feelings, is integrated into stimulus-based visual information to create a unified visual experience. This phenomenon is called affective realism. (Barrett & Bar, 2009). Previous research has used a technique called Continuous Flash Suppression to explore affective realism. CFS renders an image presented to one eye invisible while another image is presented to the other eye that participants are consciously aware of (Tsuchiya & Koch, 2005). Using CFS, our lab showed that unseen affective information can influence a participant's evaluation of a seen neutral target (Anderson, Siegel, White, & Barrett, 2012). While these findings are consistent with affective realism as an explanation, they do not rule out alternative interpretations. Another possible interpretation of these effects is affective misattribution, which occurs when people use their feelings as a source of information while making judgments (Clore, Gasper, & Garvin 2001). The current study explores whether there are strict timing boundaries on this effect in order to differentiate between the two possible interpretations. • Eye dominance and mirror stereoscope calibration (Fig. 1) • Individualized Contrast Adjustment • Trait Ratings Task Figure 1 • Seen, full-contrast neutral faces were flashed in the dominant eye either before, concurrently, or after unseen, low-contrast emotional faces (smiling, neutral, scowling). (Fig. 2) • Subjects were asked to rate the likeability, reliability, and trustworthiness of seen neutral faces. Subjects reported the gender of the seen face as a trial-by-trial check for suppression. • Objective Awareness Task • • • • This research was supported by the U.S. Army Research Institute for the Behavioral and Social Sciences (contract number W5J9CQ-12-C-0049). The views, opinions, and/or findings contained in this paper are those of the authors and shall not be construed as an official Department of the Army position, policy, or decision, unless so designated by other documents. Study 2: 100ms gaps; N= 56 Figure 2 Results Unseen Face Type Trait Ra(ngs of Neutral Faces per Timing Condi(on Study 1 F(2, 30)=5.49, p<.05* 3.2 3.1 F(2,30)=2.16, p>.05 * F(2, 55)=7.42, p<.05* 3.1 F(2,30)=0.14, p>.05 3 2.9 2.8 2.7 2.6 2.5 Before Concurrent Timing Condi(on Study 2 A9er Average Posi(ve Trait Ra(ngs • Study 1: 150ms gaps; N= 31 Average Posi(ve Trait Ra(ngs • Affective • Discussion Introduction 3.05 F(2,55)=1.48, p>.05 3 * * F(2,55)=2.21, p>.05 • Unseen affective faces had the strongest influence on the ratings of seen neutral faces during the concurrent timing condition in both studies. • These results suggest our effect, affective realism, is indeed distinct from affective misattribution (or at least represents a special case of affective misattribution) because affective misattribution effects do not rely on such strict time constraints. • Since the timing matters, affective realism is a better explanation; individuals may be constructing and perceiving their realities differently based on their own feelings. • For example, a police officer in a negative mood may actually experience a community member as being more hostile (rather than just use his or her feelings to make a biased judgment about that person). • An exciting future line of research will explore whether affective realism actually changes the seen physical properties of stimuli in the world (i.e., whether how we feel literally changes what we see). 2.95 References 2.9 2.85 2.8 2.75 2.7 Before Concurrent Timing Condi(on A9er • In both studies, the effect of affective realism was only significant when the unseen and seen faces were presented concurrently. • In both studies, in the concurrent condition, the seen neutral faces were rated significantly more positively when paired with unseen smiling faces than when paired with the unseen scowling faces (ps<.05). • In Study 2 in the concurrent condition, seen neutral faces were rated significantly more positive when paired with unseen neutral faces than when paired with unseen scowling faces (p<.05). Anderson, E., Siegel, E., White, D., & Barrett, L. F. (2012). Out of sight but not out of mind: unseen affective faces influence evaluations and social impressions. Emotion, 12(6), 1210. Barrett, L. F., & Bar, M. (2009). See it with feeling: affective predictions during object perception. Philosophical Transactions of the Royal Society B: Biological Sciences, 364(1521), 1325-1334. Clore, G. L., Gasper, K., & Garvin, E. (2001). Affect as information. In J. P. Forgas, (Ed.). Handbook of Affect and Social Cognition (pp. 121-144). Mahwah, NJ.: Lawrence Erlbaum Associates. Tsuchiya, N., & Koch, C. (2005). Continuous flash suppression reduces negative afterimages. Nature neuroscience, 8(8), 1096-1101.
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