I spy
Relieving the Burdens of Secrecy: Revealing Secrets Influences Judgments of Hill Slant and Distance
Michael Slepian, E.J. Masicampo & Nalini Ambady
Social Psychological and Personality Science, forthcoming
Abstract:
Recent work demonstrates that harboring secrets influences perceptual judgments and actions. Individuals carrying secrets make judgments consistent with the experience of being weighed down, such as judging a hill as steeper and judging distances to be farther. In the present article, two studies examined whether revealing a secret would relieve the burden of secrecy. Relative to a control condition, thinking about a secret led to the judgments of increased hill slant, whereas revealing a secret eliminated that effect (Study 1). Additionally, relative to a control condition, thinking about a secret led to judgments of increased distance, and again, revealing a secret eliminated that effect (Study 2). Sharing secrets with others might relieve the perceived physical burden from secrecy.
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The influence of red on impression formation in a job application context
Markus Maier et al.
Motivation and Emotion, September 2013, Pages 389-401
Abstract:
Recent research has shown that the color red can influence psychological functioning. In the present research we tested the hypothesis that red influences impression formation related to another person's abilities. We conducted three experiments examining the influence of red on the evaluation of male target persons. In Experiment 1, participants viewing red, relative to green, on the shirt of a person presented on a photograph perceived him to be less intelligent. This effect was strongest in a job application context compared to other contexts. In Experiment 2, focusing solely on the job application context, participants viewing red, relative to blue, on an applicants' tie perceived him to have less earning and leadership potential. In Experiment 3, participants viewing red, relative to green, on a job applicants' tie rated him as less likely to be hired, and perceptions of ability and leadership potential mediated this effect. Both the conceptual and applied implications of these findings are discussed.
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The effect of subliminal priming on sleep duration
Mitsuru Shimizu, Jesse Sperry & Brett Pelham
Journal of Applied Social Psychology, forthcoming
Abstract:
Two experiments primed college students with either sleep-related or neutral words and then assessed sleep during a 25 minute nap period. Both experiments showed that participants primed with sleep-related words reported having slept longer than did those primed with neutral words. Furthermore, both experiments showed that sleep-primed participants exhibited lower heart rate. Experiment 2 also revealed that the effect of the priming manipulation was especially strong among participants who had trouble sleeping. This suggests that priming might be a cost-effective treatment for inducing sleep among people with sleep problems.
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The Weight of a Guilty Conscience: Subjective Body Weight as an Embodiment of Guilt
Martin Day & Ramona Bobocel
PLoS ONE, July 2013
Abstract:
Guilt is an important social and moral emotion. In addition to feeling unpleasant, guilt is metaphorically described as a "weight on one's conscience." Evidence from the field of embodied cognition suggests that abstract metaphors may be grounded in bodily experiences, but no prior research has examined the embodiment of guilt. Across four studies we examine whether i) unethical acts increase subjective experiences of weight, ii) feelings of guilt explain this effect, and iii) whether there are consequences of the weight of guilt. Studies 1-3 demonstrated that unethical acts led to more subjective body weight compared to control conditions. Studies 2 and 3 indicated that heightened feelings of guilt mediated the effect, whereas other negative emotions did not. Study 4 demonstrated a perceptual consequence. Specifically, an induction of guilt affected the perceived effort necessary to complete tasks that were physical in nature, compared to minimally physical tasks.
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More than meets the eye: Implicit perception in legally blind individuals
Alan Brown, Michael Best & David Mitchell
Consciousness and Cognition, September 2013, Pages 996-1002
Abstract:
Legally blind participants (uncorrected vision of 20/200+) were able to identify a visual stimulus attribute (clock hand position) in the absence of consciously identifying its presence. Specifically, participants - with their corrective lenses removed - correctly guessed the hour-hand position above chance (8%) on a clockface shown on a computer screen. This occurred both when presented in a 1-clockface display (28%), as well as when shown a display containing 4 clockfaces (21%), in which only 1 face contained a hand. Even more striking, hand identification accuracy in the 4-clockface condition was comparable whether the clockface containing the hand was (21%) or was not (20%) correctly identified. That legally blind individuals are capable of identifying stimulus attributes without conscious awareness provides an additional vehicle for exploring implicit perception. Consistent with previous research, the visualsystem can apparently cope with degraded visual input through information available through a(n unconscious) secondary pathway via the superior colliculi.
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What color is my arm? Changes in skin color of an embodied virtual arm modulates pain threshold
Matteo Martini, D. Perez-Marcos & M.V. Sanchez-Vives
Frontiers in Human Neuroscience, July 2013
Abstract:
It has been demonstrated that visual inputs can modulate pain. However, the influence of skin color on pain perception is unknown. Red skin is associated to inflamed, hot and more sensitive skin, while blue is associated to cyanotic, cold skin. We aimed to test whether the color of the skin would alter the heat pain threshold. To this end, we used an immersive virtual environment where we induced embodiment of a virtual arm that was co-located with the real one and seen from a first-person perspective. Virtual reality allowed us to dynamically modify the color of the skin of the virtual arm. In order to test pain threshold, increasing ramps of heat stimulation applied on the participants' arm were delivered concomitantly with the gradual intensification of different colors on the embodied avatar's arm. We found that a reddened arm significantly decreased the pain threshold compared with normal and bluish skin. This effect was specific when red was seen on the arm, while seeing red in a spot outside the arm did not decrease pain threshold. These results demonstrate an influence of skin color on pain perception. This top-down modulation of pain through visual input suggests a potential use of embodied virtual bodies for pain therapy.
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Bound to Lose: Physical Incapacitation Increases the Conceptualized Size of an Antagonist in Men
Daniel Fessler & Colin Holbrook
PLoS ONE, August 2013
Abstract:
Because decision-making in situations of potential conflict hinges on assessing many features of the self and the foe, this process can be facilitated by summarizing diverse attributes in a single heuristic representation. Physical size and strength are evolutionarily ancient determinants of victory in conflict, and their relevance is reinforced during development. Accordingly, size and muscularity constitute ready dimensions for a summary representation of relative formidability, a perspective paralleled by the notion that social power is represented using envisioned relative size. Physical incapacitation constitutes a significant tactical disadvantage, hence temporary incapacitation should increase the envisioned size and strength of an antagonist. In Study 1, being bound to a chair increased men's estimates of the size of an angry man and decreased estimates of their own height. Study 2 conceptually replicated these effects: among men for whom standing on a balance board was challenging, the attendant experience of postural instability increased estimates of an angry man's size and muscularity, with similar patterns occurring at a reduced level among all but those whose equilibrium was apparently unaffected by this task.
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Geoff Cole & Arnold Wilkins
Psychological Science, forthcoming
Abstract:
Phobias are usually described as irrational and persistent fears of certain objects or situations, and causes of such fears are difficult to identify. We describe an unusual but common phobia (trypophobia), hitherto unreported in the scientific literature, in which sufferers are averse to images of holes. We performed a spectral analysis on a variety of images that induce trypophobia and found that the stimuli had a spectral composition typically associated with uncomfortable visual images, namely, high-contrast energy at midrange spatial frequencies. Critically, we found that a range of potentially dangerous animals also possess this spectral characteristic. We argue that although sufferers are not conscious of the association, the phobia arises in part because the inducing stimuli share basic visual characteristics with dangerous organisms, characteristics that are low level and easily computed, and therefore facilitate a rapid nonconscious response.
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Nicole Erlich, Ottmar Lipp & Virginia Slaughter
Developmental Science, forthcoming
Abstract:
Adult humans demonstrate differential processing of stimuli that were recurrent threats to safety and survival throughout evolutionary history. Recent studies suggest that differential processing of evolutionarily ancient threats occurs in human infants, leading to the proposal of an inborn mechanism for rapid identification of, and response to, evolutionary fear-relevant stimuli. The current study provides novel data in support of this proposal, showing for the first time that human infants differentially process evolutionary threats presented in the auditory modality. Sixty-one 9-month-olds listened to evolutionary fear-relevant, modern fear-relevant, and pleasant sounds, while their heart rate, startle, and visual orienting behaviours were measured. Infants demonstrated significantly enhanced heart rate deceleration, larger eye-blinks, and more visual orienting when listening to evolutionary fear-relevant sounds compared to sounds from the other two categories. These results support the proposal that human infants possess evolved mechanisms for the differential processing of a range of ancient environmental threats.
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Construing in a crowd: The effects of social crowding on mental construal
Ahreum Maeng & Robin Tanner
Journal of Experimental Social Psychology, November 2013, Pages 1084-1088
Abstract:
How does social crowdedness shape the way people mentally represent objects in the environment? Building on research suggesting that motivational intensity can serve to influence the span of conceptual scope, we demonstrate that individuals in socially crowded environments tend to rely on concrete low-level construals, while those in less crowded environments utilize more abstract high-level construals. We further demonstrate that these effects are mediated by a social crowding induced avoidance motivation, and are moderated by the composition of the crowd.
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Full body illusion is associated with widespread skin temperature reduction
Roy Salomon et al.
Frontiers in Behavioral Neuroscience, forthcoming
Abstract:
A central feature of our consciousness is the experience of the self as a unified entity residing in a physical body, termed bodily self-consciousness. This phenomenon includes aspects such as the sense of owning a body (also known as body ownership) and has been suggested to arise from the integration of sensory signals from the body. Several studies have shown that temporally synchronous tactile stimulation of the real body and visual stimulation of a fake or virtual body can induce changes in bodily self-consciousness, typically resulting in a sense of illusory ownership over the fake body. The present study assessed the effect of anatomical congruency of visuo-tactile stimulation on bodily self-consciousness. A virtual body was presented and temporally synchronous visuo-tactile stroking was applied simultaneously to the participants' body and to the virtual body. We manipulated the anatomical locations of the visuo-tactile stroking (i.e., on the back, on the leg), resulting in congruent stroking (stroking was felt and seen on the back or the leg) or incongruent stroking (i.e., stroking was felt on the leg and seen on the back). We measured self-identification with the virtual body and self-location as well as skin temperature. Illusory self-identification with the avatar as well as changes in self-location were experienced in the congruent stroking conditions. Participants showed a decrease in skin temperature across several body locations during congruent stimulation. These data establish that the full-body illusion (FBI) alters bodily self-consciousness and instigates widespread physiological changes in the participant's body.
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Human Gender Differences in the Perception of Conspecific Alarm Chemosensory Cues
Anca Radulescu & Lilianne Mujica-Parodi
PLoS ONE, July 2013
Abstract:
It has previously been established that, in threatening situations, animals use alarm pheromones to communicate danger. There is emerging evidence of analogous chemosensory "stress" cues in humans. For this study, we collected alarm and exercise sweat from "donors," extracted it, pooled it and presented it to 16 unrelated "detector" subjects undergoing fMRI. The fMRI protocol consisted of four stimulus runs, with each combination of stimulus condition and donor gender represented four times. Because olfactory stimuli do not follow the canonical hemodynamic response, we used a model-free approach. We performed minimal preprocessing and worked directly with block-average time series and step-function estimates. We found that, while male stress sweat produced a comparably strong emotional response in both detector genders, female stress sweat produced a markedly stronger arousal in female than in male detectors. Our statistical tests pinpointed this gender-specificity to the right amygdala (strongest in the superficial nuclei). When comparing the olfactory bulb responses to the corresponding stimuli, we found no significant differences between male and female detectors. These imaging results complement existing behavioral evidence, by identifying whether gender differences in response to alarm chemosignals are initiated at the perceptual versus emotional level. Since we found no significant differences in the olfactory bulb (primary processing site for chemosensory signals in mammals), we infer that the specificity in responding to female fear is likely based on processing meaning, rather than strength, of chemosensory cues from each gender.
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Unnoticed intrusions: Dissociations of meta-consciousness in thought suppression
Benjamin Baird et al.
Consciousness and Cognition, September 2013, Pages 1003-1012
Abstract:
The current research investigates the interaction between thought suppression and individuals' explicit awareness of their thoughts. Participants in three experiments attempted to suppress thoughts of a prior romantic relationship and their success at doing so was measured using a combination of self-catching and experience-sampling. In addition to thoughts that individuals spontaneously noticed, individuals were frequently caught engaging in thoughts of their previous partner at experience-sampling probes. Furthermore, probe-caught thoughts were: (i) associated with stronger decoupling of attention from the environment, (ii) more likely to occur under cognitive load, (iii) more frequent for individuals with a desire to reconcile, and (iv) associated with individual differences in the tendency to suppress thoughts. Together, these data suggest that individuals can lack meta-awareness that they have begun to think about a topic they are attempting to suppress, providing novel insight into the cognitive processes that are involved in attempting to control undesired mental states.