Emotion-induced trade-offs in spatiotemporal vision.

Bocanegra, Bruno R.; Zeelenberg, René

doi:10.1037/a0023188

Cited by 53 publications

(58 citation statements)

References 63 publications

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“…Presenting a fear-conditioned stimulus activates the amygdala (e.g., Lim, Padmala, & Pessoa, 2009), and it has been argued that the amygdala has more of an influence over the processing of low spatial frequency information than high spatial frequency information due to the amygdala activating magnocellular pathways specialized for processing low spatial frequency information (Bocanegra & Zeelenberg, 2009b, 2011a). One interesting study (Kveraga, Boshyan, & Bar, 2007) presented participants with line drawings of neutral objects that were outlined either using light grey on a darker grey background (biased towards magnocellular processing) or outlined in red against an isoluminant green background (biased towards parvocellular processing).…”

Section: Discussionmentioning

confidence: 99%

How arousal modulates the visual contrast sensitivity function.

Lee¹,

Baek²,

Lü³

et al. 2014

Emotion

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Recent evidence indicates that emotion enhances contrast thresholds in subsequent visual perception (Phelps, Ling, & Carrasco, 2006), and perceptual sensitivity for low-spatial-frequency but not high-spatial-frequency targets (Bocanegra & Zeelenberg, 2009b). However, these studies just report responses to various frequencies at a fixed contrast level or responses to various contrasts at a fixed frequency. In the current study, we measured the full contrast sensitivity function as a function of emotional arousal in order to investigate potential interactions between spatial frequency and contrast. We used a Bayesian adaptive inference with a trial-to-trial information gain strategy (Lesmes, Lu, Baek, & Albright, 2010) and a fear-conditioned stimulus to manipulate arousal level. The spatial frequency at which people showed peak contrast sensitivity shifted to lower spatial frequencies in the arousing condition compared with the non-arousing condition and people had greater contrast sensitivity function bandwidth in the arousing than in the non-arousing condition.

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Section: Discussionmentioning

confidence: 99%

How arousal modulates the visual contrast sensitivity function.

Lee¹,

Baek²,

Lü³

et al. 2014

Emotion

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show abstract

“…Then, in order to measure the impact of this spotlight size induction on spatial and temporal acuity, on the other 20 % of trials, observers performed spatial and a temporal gap detection tasks (varied across block, order counterbalanced). Note that these spatial and temporal gap detection tasks have previously been successfully used to gauge M-cell and P-cell input to perception and how this is affected by various factors, including covert shifts of attention (Yeshurun & Levy, 2003), the proximity of the hands to visual stimuli (Bush & Vecera, 2014;Gozli, West, & Pratt, 2012), and the emotional content of observed facial expressions (Bocanegra & Zeelenberg, 2011).…”

Section: Methodsmentioning

confidence: 99%

Selective spatial enhancement: Attentional spotlight size impacts spatial but not temporal perception

2016

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An important but often neglected aspect of attention is how changes in the attentional spotlight size impact perception. The zoom-lens model predicts that a small ("focal") attentional spotlight enhances all aspects of perception relative to a larger ("diffuse" spotlight). However, based on the physiological properties of the two major classes of visual cells (magnocellular and parvocellular neurons) we predicted trade-offs in spatial and temporal acuity as a function of spotlight size. Contrary to both of these accounts, however, across two experiments we found that attentional spotlight size affected spatial acuity, such that spatial acuity was enhanced for a focal relative to a diffuse spotlight, whereas the same modulations in spotlight size had no impact on temporal acuity. This likely reflects the function of attention: to induce the high spatial resolution of the fovea in periphery, where spatial resolution is poor but temporal resolution is good. It is adaptive, therefore, for the attentional spotlight to enhance spatial acuity, whereas enhancing temporal acuity does not confer the same benefit.

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“…seeing a fearful face) can improve fast temporal vision (via magnocellular channels) at the expense of fine-grained spatial vision (dependent on parvocellular channels; see Bocanegra & Zeelenberg, 2011). Hence, rapid emotional responses to visual stimuli might be evoked by coarse and imprecise information broadcasted throughout the visual systems at early latencies (though subcortical and/or cortical inputs), and thus influence ongoing perceptual processes, but these effects might not invariably or globally improve vision, and instead sometimes produce tradeoff phenomena that speed up processing but impair precision (Bocanegra & Zeelenberg, 2009;Bocanegra & Zeelenberg, 2011).…”

Section: Neural Routes To the Amygdalamentioning

confidence: 99%

Brain mechanisms for emotional influences on perception and attention: What is magic and what is not

Pourtois

Schettino

Vuilleumier

2013

Biological Psychology

605

475

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The rapid and efficient selection of emotionally-salient or goal-relevant stimuli in the environment is crucial for flexible and adaptive behaviors. Converging data from neuroscience and psychology have accrued during the last decade to identify brain systems involved in emotion processing, selective attention, and their interaction, which together act to extract the emotional or motivational value of sensory events and respond appropriately. An important hub in these systems is the amygdala, which may not only monitor the emotional value of stimuli, but also readily project to several other areas and send feedback to sensory pathways (including striate and extrastriate visual cortex). This system generates saliency signals that modulate perceptual, motor, as well as memory processes, and thus in turn regulate behavior appropriately.Here, we review our current views on the function and properties of these brain systems, with an emphasis on their involvement in the rapid and/or preferential processing of threat-relevant stimuli. We suggest that emotion signals may enhance processing efficiency and competitive strength of emotionally significant events through gain control mechanisms similar to those of other (e.g. endogenous) attentional systems, but mediated by distinct neural mechanisms in amygdala and interconnected prefrontal areas. Alterations in these brain mechanisms might be associated with psychopathological conditions, such as anxiety or phobia. We conclude that attention selection and awareness are determined by multiple attention gain control systems that may operate in parallel and use different sensory cues but act on a common perceptual pathway.

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Emotion-induced trade-offs in spatiotemporal vision.

Cited by 53 publications

References 63 publications

How arousal modulates the visual contrast sensitivity function.

How arousal modulates the visual contrast sensitivity function.

Selective spatial enhancement: Attentional spotlight size impacts spatial but not temporal perception

Brain mechanisms for emotional influences on perception and attention: What is magic and what is not

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