Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"Perceptual Load"”.
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Visual selective attention: the effect of stimulus onset, perceptual load, and working memory demand on distractor interference
… distractor interference is determined by the perceptual load of a visual display and the availability of cognitive control mechanisms (working memory load). It is unclear however, which mechanisms assist efficient selective attention and how irrelevant distracting information is rejected. …
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Where was my mind?: The role of perceptual load on mind wandering and consumer memory for advertising content
… of a secondary task cognitive or perceptual affect memory for ad content. It shows how performing low perceptual-load secondary tasks (e.g., doodling, playing a simple computer game) can decrease mind wandering and increase memory for an advertisement, whereas cognitive-load …
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Investigating the influence of distractions whilst engaging in social media – an EEG project
… other similar topics such as Lavie’s (1995) perceptual load theory provide enough framework from which to base expectations off. It was expected that the two conditions of varied perceptual load will interact with cue perception. However, though there were main effects for the two factors, …
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Advertising distractor devaluation under perceptual and cognitive load
… web games that differed in cognitive and perceptual load. We find that memory, familiarity, and evaluation of peripheral ads only declines with perceptual load.
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Impact of affective traits on response interference: modulations by trait negative affect, anxious arousal, and anxious apprehension
… on a circle. Non-targets were homogeneous in low perceptual load (Os) and heterogeneous in high perceptual load (K,V,S,R,J). Additionally, a foil (X or N) was presented in the center or periphery (left or right) of the display. It was predicted 1) that flanker interference would increase with …
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Neural Correlates of Tactile Attention: Behavioural measures and event-related brain potentials of inhibition of return, exogenous and endogenous attention in touch
… (Chapter VI) demonstrated that varying visual perceptual load influenced tactile processing. Specifically, high perceptual load led to elimination of IOR. Moreover, the P100 for irrelevant tactile stimuli was significantly reduced in high versus low load condition. This suggests perceptual load …
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Effects of Noise on Cognitive Function During Dual Tasks across Normally Aging Adults
… increasing in cognitive (task difficulty) and perceptual load (noise) with age. Participants were divided into two groups based upon age. Group 1 consisted of 14 listeners (Female=11) who were 40-59 years old (Mean=53.18, SD=5.97). Group 2 consisted of 15 listeners (Female=9) who were 60 years …
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Design of intelligent interiors
… with intelligent interior spaces. The perceptual load and quality of interaction needs to be balanced; for example in our experiments projected text was almost always distracting.
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Automatic or controlled: What is the nature of the encoding processes leading to perceptual implicit memory?
Whether the encoding processes necessary for perceptual implicit memory (as indexed by a perceptual fluency task) are automatic or controlled was tested using the load insensitivity and intentionality criteria of Yantis and Jonides (1990). In Experiment 1, which manipulated perceptual load (1, 2, …
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Selective attention under different pressure sources and perceptual loads
… how selective attention under different perceptual loads is affected by pressure. The first three experiments examined the pressure effects on selective attention of non-emotional stimuli using letters, and the fourth experiment investigated emotional stimuli using emoticons. In …
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Factors Influencing how Electrotactile Stimuli are Consciously Perceived
… in the United States experience tactile perceptual impairments, or difficulty/inability detecting and interpreting tactile stimuli. In clinical settings, tactile perceptual assessments are commonly used to diagnose impairments and somatosensory function (e.g., intact dermatomes following …
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The role of Attentional Binding in Hallucination Proneness
… Cognitive accounts suggest that under perceptual uncertainty and high attentional demand, perception relies more heavily on top down expectations, increasing the likelihood of misinterpretation. However, mechanistic evidence in healthy individuals with high hallucination proneness, …
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Taking attention away from the auditory modality : investigations of the effect on speech processing using machine learning
… study 1, we demonstrate that modulating visual perceptual load can impact the early sensory representation of linguistically-relevant pitch contours (Mandarin tones), a suprasegmental feature that is critical to the percept of lexical tones. Further, we provide novel evidence that the impact of …
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Multisensory Integration in adults with Attention-Deficit/Hyperactivity Disorder
… but with an additional task demand, namely a perceptual load visual search task. As a result, MI was similar in ADHD patients compared to healthy controls. However, application of the race model revealed a difference in sensory accumulation at high perceptual load in ADHD. Taken together, the …
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Interpersonal influences in human visual attention: from behaviour to EEG.
… attention effect persisted under an increased perceptual load (Experiment 3), was not modulated by the group membership status attributed to the task partner (i.e., social closeness; Experiment 4), and disappeared once the partner was performing the task from a separate room (i.e., physical …