Briana L. Kennedy
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View article: The Role of Exposure Time on the Subjective Ratings of Emotional Images in Younger and Older Adults
The Role of Exposure Time on the Subjective Ratings of Emotional Images in Younger and Older Adults Open
Does the subjective emotionality of images change when they are only shown briefly, and are differences in the impact of emotional image duration modulated by age? The first question has broad implications for research on how emotional sti…
View article: Age differences in rapid attention to emotional stimuli are driven more by valence than by discrete emotions.
Age differences in rapid attention to emotional stimuli are driven more by valence than by discrete emotions. Open
In a pattern known as the positivity effect, older adults tend to prioritize positive over negative information in attention and memory compared to younger adults. Traditional theories attribute this effect to age-related shifts toward pos…
View article: Negative images, regardless of task relevance, distract younger more than older adults.
Negative images, regardless of task relevance, distract younger more than older adults. Open
Older adults, compared to younger adults, tend to prioritize positive information more and negative information less. We recently observed this "positivity effect" pattern in an emotion-induced blindness task, which measures attention allo…
View article: You eye what you eat: BMI, consumption patterns, and dieting status predict temporal attentional bias to food-associated images
You eye what you eat: BMI, consumption patterns, and dieting status predict temporal attentional bias to food-associated images Open
People know that overconsumption of high-fat high-sugar (HFHS) foods have negative consequences for physical and cognitive wellbeing but continue to consume these foods in excess, leading to recent proposals to model obesity as an addictio…
View article: Executive function and the continued influence of misinformation: A latent-variable analysis
Executive function and the continued influence of misinformation: A latent-variable analysis Open
Misinformation can continue to influence reasoning after correction; this is known as the continued influence effect (CIE). Theoretical accounts of the CIE suggest failure of two cognitive processes to be causal, namely memory updating and…
View article: Sizing up the crowd: Assessing spatial integration difficulties in body size judgements across eating disorder symptomatology
Sizing up the crowd: Assessing spatial integration difficulties in body size judgements across eating disorder symptomatology Open
Introduction Body size judgements are frequently biased, or inaccurate, and these errors are further exaggerated for individuals with eating disorders. Within the eating disorder literature, it has been suggested that exaggerated errors in…
View article: Two interdigitated fine-scale channels for encoding motion and stereopsis within the human magnocellular stream
Two interdigitated fine-scale channels for encoding motion and stereopsis within the human magnocellular stream Open
In humans and non-human primates (NHPs), motion and stereopsis are processed within fine-scale cortical sites, including V2 thick stripes and their extensions into areas V3 and V3A that are believed to be under the influence of magnocellul…
View article: Locus coeruleus integrity is related to tau burden and memory loss in autosomal-dominant Alzheimer's disease
Locus coeruleus integrity is related to tau burden and memory loss in autosomal-dominant Alzheimer's disease Open
Abnormally phosphorylated tau, an indicator of Alzheimer's disease, accumulates in the first decades of life in the locus coeruleus (LC), the brain's main noradrenaline supply. However, technical challenges in in-vivo assessments have impe…
View article: Behavioral and fMRI evidence that arousal enhances bottom-up attention and memory selectivity in young but not older adults
Behavioral and fMRI evidence that arousal enhances bottom-up attention and memory selectivity in young but not older adults Open
During a challenge or emotional experience, increases in arousal help us focus on the most salient or relevant details and ignore distracting stimuli. The noradrenergic system integrates signals about arousal states throughout the brain an…
View article: Locus coeruleus integrity is related to tau burden and memory loss in autosomal-dominant Alzheimer’s disease
Locus coeruleus integrity is related to tau burden and memory loss in autosomal-dominant Alzheimer’s disease Open
Abnormally phosphorylated tau, an indicator of Alzheimer’s disease, accumulates in the first decades of life in the locus coeruleus (LC), the brain’s main noradrenaline supply. However, technical challenges in reliable in-vivo assessments …
View article: Isometric exercise facilitates attention to salient events in women via the noradrenergic system
Isometric exercise facilitates attention to salient events in women via the noradrenergic system Open
The locus coeruleus (LC) regulates attention via the release of norepinephrine (NE), with levels of tonic LC activity constraining the intensity of phasic LC responses. In the current fMRI study, we used isometric handgrip to modulate toni…
View article: Isometric exercise facilitates attention to salient events in women via the noradrenergic system
Isometric exercise facilitates attention to salient events in women via the noradrenergic system Open
The locus coeruleus (LC) plays a critical role in regulating attention via the release of norepinephrine (NE), with levels of tonic LC activity constraining the intensity of phasic LC responses. However, the effects of manipulating tonic L…
View article: Age differences in emotion-induced blindness: Positivity effects in early attention.
Age differences in emotion-induced blindness: Positivity effects in early attention. Open
Compared with younger adults, older adults tend to favor positive information more than negative information in their attention and memory. This "positivity effect" has been observed in various paradigms, but at which stage it impacts cogn…
View article: Neural signatures of dynamic emotion constructs in the human brain
Neural signatures of dynamic emotion constructs in the human brain Open
How is emotion represented in the brain: is it categorical or along dimensions? In the present study, we applied multivariate pattern analysis (MVPA) to magnetoencephalography (MEG) to study the brain’s temporally unfolding representations…
View article: Evidence for improved memory from 5 minutes of immediate, post-encoding exercise among women
Evidence for improved memory from 5 minutes of immediate, post-encoding exercise among women Open
Memories consolidate over time, with one consequence being that what we experience after learning can influence what we remember. In these experiments, women who engaged in 5 minutes of low-impact exercise immediately after learning showed…
View article: Affective penetration of vision: Behavioral and eye-tracking evidence that emotion helps shape perception
Affective penetration of vision: Behavioral and eye-tracking evidence that emotion helps shape perception Open
It recently has been claimed that no evidence yet supports a role of "top-down" factors, such as emotion, in perceptual processing (Firestone & Scholl, in press). Here, we provide evidence supporting such a role by probing an effect known …
View article: Object-based effects (and their absence) reveal parallel mechanisms of emotional disruption of perception
Object-based effects (and their absence) reveal parallel mechanisms of emotional disruption of perception Open
Emotional stimuli can capture attention and impair perception of subsequently presented targets, a phenomenon known as emotion-induced blindness (EIB). In contrast to spatial attention tasks (where emotional stimuli impair processing of ta…