Consumer Perception of Online Advertising - The Effects of Animation, Ad Characteristics, Repetition and Task Relevancy on Attention and Memory

Prior advertising research on advertising perception models has mainly focused on effects that occur after consumers have been exposed to advertising stimuli. Little research has examined how consumers are exposed to advertising and the quality of visual attention during advertising exposure. This doctoral dissertation examines how consumers allocate their visual attention to online ads and how consumers memorize ads in different viewing conditions. More precisely, the dissertation focuses on how ad format and location, animation, repetition, abrupt onsets, and task relevancy affect attention to ads and memory performance. The thesis employs theories of cognitive psychology, visual marketing and consumer behavior, advertising persuasion models and computer science and applies experimental methodologies such as eye tracking besides consumers' self-reported measures. The thesis consists of four essays. Essay 1 introduces a review of relevant theory and eye tracking methodology for online advertising research. The next three essays present experimental studies. Essay 2 investigates the effects of ad format and animation on attention and memory. Essay 3 examines the effects of repetition of ads on memory. Essay 4 investigates how animation, ad format and abrupt onsets of ads affect reading performance, and how online ads are perceived during free browsing compared to an instructed reading task. Our findings indicate that attention and memory for ads were significantly affected by consumers' intentions, ad characteristics and web page contents. Consumers are more likely to be attracted by ads when browsing web sites freely without a special task. Ad characteristics, such as animation and ad format interact and influence differently on attention and memory performance for ads depending on the ad's location on a page and the surrounding page content. The thesis also tested the effects of repetition of ads as a potential strategy to improve memory for ads. A significant positive effect was found already at rather low levels of repetition. Moreover, we also tested consumers' attention to abrupt onsets of ads. We registered a significant increase of attention to abrupt onsets of ads as compared with permanent ads especially during free browsing of web pages. This thesis increases our knowledge of the role and type of ad exposure on consumers' attention by evaluating the effectiveness of advertising exposure in dynamic online environment. This research is also the first attempt to evaluate the applicability of the primary eye tracking measures for online advertising. For advertisers, media traders and graphic designers this research proposes new strategies about how to adjust ad format and placement, animation and repetition to break through advertising clutter and reduce consumers' ad avoidance to develop stronger brand awareness and preferences

Attention, memory and preference for direct and indirect print advertisements

We examined the effectiveness of direct and indirect advertising. Direct ads openly depict advertised products and brands. In indirect ads, the ad message requires elaboration. Eye movements were recorded while consumers viewed direct and indirect advertisements under fixed (5 s) or unlimited exposure time. Recognition of ads, brand logos and preference for brands were tested under two different delays (after 24 h or 45 min) from the ad exposure. The total viewing time was longer for the indirect ads when exposure time was unlimited. Overall, ad pictorials received more fixations and the brand preference was higher in the indirect condition. Recognition improved for brand logos of indirect ads when tested after the shorter delay. Consumers experienced indirect ads as more original, surprising, intellectually challenging and harder to interpret than direct ads. Current results indicate that indirect ads elicit cognitive elaboration that translates into higher preference and memorability for brands.Peer reviewe

Perception of visual advertising in different media : from attention to distraction, persuasion, preference and memory

Peer reviewe

Attention, memory and preference for direct and indirect print advertisements

We examined the effectiveness of direct and indirect advertising. Direct ads openly depict advertised products and brands. In indirect ads, the ad message requires elaboration. Eye movements were recorded while consumers viewed direct and indirect advertisements under fixed (5 s) or unlimited exposure time. Recognition of ads, brand logos and preference for brands were tested under two different delays (after 24 h or 45 min) from the ad exposure. The total viewing time was longer for the indirect ads when exposure time was unlimited. Overall, ad pictorials received more fixations and the brand preference was higher in the indirect condition. Recognition improved for brand logos of indirect ads when tested after the shorter delay. Consumers experienced indirect ads as more original, surprising, intellectually challenging and harder to interpret than direct ads. Current results indicate that indirect ads elicit cognitive elaboration that translates into higher preference and memorability for brands.</p

Prediction of prostate cancer aggressiveness using ¹⁸F-Fluciclovine (FACBC) PET and multisequence multiparametric MRI

Abstract The aim of this prospective single-institution clinical trial (NCT02002455) was to evaluate the potential of advanced post-processing methods for ¹⁸F-Fluciclovine PET and multisequence multiparametric MRI in the prediction of prostate cancer (PCa) aggressiveness, defined by Gleason Grade Group (GGG). 21 patients with PCa underwent PET/CT, PET/MRI and MRI before prostatectomy. DWI was post-processed using kurtosis (ADCₖ, K), mono- (ADCₘ), and biexponential functions (f, Dₚ, Df) while Logan plots were used to calculate volume of distribution (VT). In total, 16 unique PET (VT, SUV) and MRI derived quantitative parameters were evaluated. Univariate and multivariate analysis were carried out to estimate the potential of the quantitative parameters and their combinations to predict GGG 1 vs &gt;1, using logistic regression with a nested leave-pair out cross validation (LPOCV) scheme and recursive feature elimination technique applied for feature selection. The second order rotating frame imaging (RAFF), monoexponential and kurtosis derived parameters had LPOCV AUC in the range of 0.72 to 0.92 while the corresponding value for VT was 0.85. The best performance for GGG prediction was achieved by K parameter of kurtosis function followed by quantitative parameters based on DWI, RAFF and ¹⁸F-FACBC PET. No major improvement was achieved using parameter combinations with or without feature selection. Addition of ¹⁸F-FACBC PET derived parameters (VT, SUV) to DWI and RAFF derived parameters did not improve LPOCV AUC