Puntiroli, Michael

2022-4-26, Puntiroli, Michael, Moussaoui, Lisa S., Bezençon, Valéry

It is unclear whether knowledge about a customer’s current sustainable behaviours, such as their choice of lightbulbs or travel mode, allows us to predict the sustainable behaviours they will carry out in the future. We address this in a large longitudinal study (N = 2177) where participants provided self-reports on electricity-, heating- and mobility related consumption at two separate times, three years apart. The results highlighted a high level of temporal consistency, whereby carrying out one sustainable behaviour predicted consumers would be carrying out the same behaviour three years later. However, sustainable behaviours generally did not drive other different sustainable behaviours years later (i.e. no spillover). In fact, isolated instances of spillover emerged only between different kinds of mobility-related consumption among consumers with high environmental values. Overall, the findings indicate a high degree of consistency in sustainable behaviour even years apart, and limited spillover from one sustainable behaviour to another.

2019-10-1, Szinte, Martin, Puntiroli, Michael, Deubel, Heiner

When preparing a saccade, attentional resources are focused at the saccade target and its immediate vicinity. Here we show that this does not hold true when saccades are prepared toward a recently extinguished target. We obtained detailed maps of orientation sensitivity when participants prepared a saccade toward a target that either remained on the screen or disappeared before the eyes moved. We found that attention was mainly focused on the immediate surround of the visible target and spread to more peripheral locations as a function of the distance from the cue and the delay between the target’s disappearance and the saccade. Interestingly, this spread was not accompanied with a spread of the saccade endpoint. These results suggest that presaccadic attention and saccade programming are two distinct processes that can be dissociated as a function of their interaction with the spatial configuration of the visual scene.

2017-2-1, Puntiroli, Michael, Tandonnet, Christophe, Kerzel, Dirk, Born, Sabine

Hick’s law states that increasing the number of response alternatives increases reaction time. Lawrence and colleagues report an exception to the law, whereby more alternatives lead to shorter saccadic reaction times (SRTs). Usher and McClelland (2001) predict such an anti-Hick’s effect when accuracy is not prioritized in a task, which should result in higher error rates with more response alternatives, and in turn to a shorter right tail of the SRT distribution. In the current study, we aim to replicate the original controversial fndings and we compare them to these predictions by examining error rates and SRT distributions. Two experiments were conducted where participants made rapid eye movements to one of few or many alternatives. In Experiment 1, the saccade target was an onset and participants started either with few or many possible target locations and then alternated between conditions. An anti-Hick’s effect emerged only when participants had started with a small set-size block. In Experiment 2, placeholders were displayed at the possible target locations and independent groups were used. A reliable anti-Hick’s effect in SRTs was observed. However, results did not meet the stated predictions: anticipations and false direction errors were never more frequent when the set size was larger and SRT differences between the two set-size conditions were not more pronounced at the slower end of the distributions. In line with Lawrence and colleagues, we speculate that initial motor preparation, and the subsequent inhibition to counteract a premature response, may induce the anti-Hick’s effect.

2020-9-1, Lagomarsino, Maria, Lemarié, Linda, Puntiroli, Michael

This paper sheds light on the reasons why conventional messages prove largely ineffective at fostering pro-environmental behaviors among individuals with high egoistic values. We conducted three experiments comparing the effectiveness of prevention-focused and promotion-focused messages at promoting pro-environmental behaviors. We found that egoistic individuals exposed to prevention-focused messages tended to perceive pro-environmental efforts as less worthy, compared to those exposed to promotion-focused messages. This effect, in turn, decreased their willingness to take environmental action. We also observed that the negative effect prevention-focused messages have on egoists is attributable to a defense mechanism. Egoistic people exposed to prevention-focused messages seem to deny the veracity of the message, which in turn decreases the perceived worthiness of the environmental effort and thus the intention to act. The findings highlight the best way to frame environmental communication to reach those who are least likely to adopt eco-responsible behavior, i.e., egoistic people.

2019-3-27, Born, Sabine, Puntiroli, Michael, Jordan, Damien, Kerzel, Dirk

Attribute amnesia (Chen & Wyble, 2015, 2016) demonstrates that we may not always be able to spontaneously retrieve a simple attribute of a visual object (e.g., its color) for conscious report, even though the object had just been the target in a visual task. Attribute amnesia has been suggested to reflect a lack of consolidation of the task-irrelevant attribute in visual working memory. Here we tested whether saccadic selection eliminates or attenuates attribute amnesia. Saccade targets have been shown to be preferentially encoded into visual working memory and may therefore be spared. We used simple color pop-out displays, asking participants to indicate the location of the color singleton letter target on each trial either by keypress or by making a saccade toward it. After a couple of trials and unannounced to the participants, we asked for the color and identity of the last target letter on a surprise trial. We found that saccade targets were not spared from attribute amnesia: Participants were as bad in correctly reporting the color in the saccade as in the keypress condition. For letter identity, the effect was attenuated but not abolished when the target was foveated for a short period of time. We argue that the current results do not refute an obligatory coupling between saccadic selection and encoding in visual working memory. However, the encoded information may not necessarily be stored in a manner that is robust enough to persist in the face of a surprise question.

2015-8-14, Puntiroli, Michael, Kerzel, Dirk, Born, Sabine

Prior to an eye movement, attention is gradually shifted toward the point where the saccade will land. Our goal was to better understand the allocation of attention in an oculomotor capture paradigm for saccades that go straight to the eye movement target and for saccades that go to a distractor and are followed by corrective saccades to the target (i.e., involuntary saccades). We also sought to test facilitation at the future retinotopic location of target and nontarget objects, with the principal aim of verifying whether the remapping process accounts for the retinal displacement caused by involuntary saccades. Two experiments were run employing a dual-task design, primarily requiring participants to perform saccades toward a target while discriminating an asymmetric cross presented briefly before saccade onset. The results clearly show perceptual facilitation at the target location for goaldirected saccades and at the distractor location when oculomotor capture occurred. Facilitation was observed at a location relating to the remapping of a future saccade landing point, in sequences of oculomotor capture. In contrast, performance remained unaffected at the remapped location of a salient distracting object, which was not looked at. The findings are taken as evidence that presaccadic enhancement occurs prior to involuntary and voluntary saccades alike and that the remapping process also indiscriminatingly accounts for the retinal displacement caused by either.

2020-6-6, Puntiroli, Michael, Bezençon, Valéry

Technological advancements spawn products that tend to be useful when placed in the appropriate hands. Here we investigated whether potential benefits of owning a feedback device were driven by individual differences in environmental values (i.e. biospherism), or whether the device alone is sufficient to reduce energy over time. We examined a total of 276 households, 138 equipped with a feedback device formed our treatment group, and 138 control households selected from a wider pool of households (+2000) based on their similarity to the treatment households, according to a statistical matching procedure. The results indicated that individuals with low biospheric values fail to decrease their electricity expenditure when paired with a feedback device. Conversely, highly biospheric individuals do engage in more pro-environmental behaviour when they receive feedback, but only when they have owned the device for about three years or more. We obtained additional insights, by focusing on differences within the treatment group that suggest, once again, that only highly biospheric individuals who owned the device for over three years successfully implement changes in the household. Overall, these results indicate that feedback devices such as smart meters can be important tools in achieving energy reductions only when paired with environmentally concerned individuals. Given the current trend towards increased feedback technology, policy implications for decision makers are discussed.

2018-6-1, Puntiroli, Michael, Kerzel, Dirk, Born, Sabine

In the time leading up to a saccade, the saccade target is perceptually enhanced compared to other objects in the visual field. This enhancement is attributed to a shift of spatial attention toward the target. We examined whether the presence of visual objects is critical for the perceptual enhancement at the saccade target to occur. We hypothesized that attention may need an object to focus on in order to be effective. We conducted four experiments using a dual-task design, where participants performed eye movements either to a location demarked by a placeholder or to an empty screen location where no object was displayed. At the same time, they discriminated a probe flashed at the location targeted by the eye movement or at one of two control locations. A strong perceptual advantage at the saccade target location was observed only when placeholders were displayed at the time of probe presentation. The complete absence of placeholders (Experiment 1), the presence of placeholders before but not during probe presentation (Experiment 3), and the presence of objects only around the saccade target (Experiments 3 and 4) led to a strong reduction in the saccade-target benefit. We conclude that placeholders may indeed be necessary to observe presaccadic enhancement at the saccade target. However, this is not because placeholders provide an object to focus attention on, but rather because they produce a masking (or crowding) effect. This detrimental effect is overcome by the presaccadic shift of attention, resulting in heightened perception only at the saccade target object.