Kersten, Alan

The current study examined how viewing an event from different perspectives (eye-level and elevated) at both encoding and retrieval changes the recognition of that event. Specifically, participants were shown various manipulations to the scenarios that they witnessed at encoding. The primary focus of the study was the participants’ ability to identify old scenarios along with scenarios that had been manipulated through differences in character clothing, object placement, or temporal order of events, while still resembling the old scenario in every other way. No support was found to support the prediction that perspective at either encoding or retrieval had an effect on recognition of the scenario or the different manipulation types. An exploratory analysis revealed a trend towards significance for perspective at encoding. An eye-level perspective at encoding was more likely to result in a higher rejection rate for temporal manipulations.

Kersten et al. (2021) revealed that participants remembered negatively valenced actions better than neutral actions, but did no better at binding negative actions with the people who performed them compared to neutral actions. We were interested in testing whether emotion only enhances memory for individual features of an event, or whether emotion can also enhance binding of certain combinations of features. In particular, we tested the effect of emotionally charged objects on the ability to remember those objects and the actions associated with them. Participants saw a series of brief videos each involving an actor performing one of two different actions on one of two objects within a specific object category (e.g., guns or piñatas), some objects neutral in valence, some positive, and some negative. Participants were later tested on their ability to distinguish old events from novel conjunctions of particular objects with the actions that had been previously performed with the other members of the same object categories. Although only marginally significant, participants appeared more able to bind objects with their associated actions when those objects held a negative charge compared to neutral objects. Additionally, participants were more sensitive to changes in actions when those actions were associated with negative objects compared to neutral or positive objects. However, false memory increased when new negative objects were presented compared to novel presentation of neutral or positive objects.

Previous research indicates that event boundaries can hinder or facilitate memory. The present study aimed to examine the influence of physical context changes (i.e., event boundaries) on the memory for actors and the actions they performed. Undergraduate participants (N=121) from Florida Atlantic University viewed two different video clip set types of actors performing various actions. The continuous context (CC) video set type included four different actors performing actions in the same physical context. The discontinuous context (DC) video set type contained four actors, the first, second, and fourth actors shown in each set performed actions in the same physical context (e.g., a library), while the third actor in the set performed an action in a different physical context (e.g., a playground). After viewing the videos, memory for the actors and the actions was evaluated using the Person-Action-Conjunction (PAC) test in a retrieval session. Participants provided significantly more ‘yes’ responses to old item than to conjunction items at retrieval. No significant differences in the proportion of ‘yes’ were found between the CC video items and DC video items. These results could be due to the manipulation of physical context not being sufficiently strong to influence event segmentation.

Individuals are constantly being exposed to new information and new situations, but memory for these events is not always equal; understanding the factors that affect an individual’s ability to remember the details surrounding these events is extremely important. The purpose of the current study was to examine the potential effects of emotion and source characteristics, such as age and gender, on memory for factual information (i.e., trivia facts) and source identity (i.e., the sources of the information). One hundred and twenty-eight undergraduate students viewed a total of 120 videos depicting eight different sources (two young adult males, two young adult females, two older adult males, and two older adult females) presenting neutral and emotional (positive, negative) trivia facts; participants were then asked to complete a fill-in-thevi blank test on memory for trivia facts and a multiple-choice test on memory for the source of each fact. Results indicated that positively valenced trivia facts were remembered more often than both neutral and negatively valenced facts; emotion was not found to affect memory for the sources of trivia facts or memory for the relationship between trivia fact and source. Results indicated that trivia facts presented by female sources were remembered better than facts presented by male sources; source gender also affected memory for the sources of each fact, such that sources of facts presented by females were remembered better than the source identity for a fact presented by a male source. When the identity of the source was forgotten, participants were more likely to falsely attribute the fact to someone of the same age as the original source. If the original source was female, participants were also more likely to falsely attribute that fact to another female source compared to a male source, but if the original source was male, participants were equally likely to misattribute the source of either gender. The findings from the current study add to the current understanding of the complex effects of emotion on memory and suggest the importance

This research is a first step towards investigating the impact verbal descriptions can have on an individual’s memory for actors performing actions. Previous research has found that verbal descriptions of mugshot-esque, face stimuli can have either a facilitative or inhibitory effect on later recognition. The current study implemented the Person Action Conjunction (PAC) test, along with three separate groups where participants provided descriptions of actions, features of the actors, and holistic attributes of the actors. The results demonstrated that the description group impacted the attention placed on either the action or actor, causing participants to remember those described elements more. Furthermore, it was found that accurately recalling descriptions provided at encoding was significantly and positively correlated with recognition performance. Further research is necessary with different control conditions before an impact of verbal description on the memory for actors and actions can be known.

Intrinsic motion pertains to the relative movements of a character’s body parts while mobile, while extrinsic motion pertains to those movements in relation to external landmarks. The current study aimed to explore whether the removal of identifiable features of a person (race and color of clothing) would force witnesses to move their focus to extrinsic motion. Previous studies regarding the concept of intrinsic and extrinsic motion have found that witnesses are more likely to encode intrinsic motion with the identity of a person, while extrinsic motion is encoded separately. This made it easier for participants to recognize an actor based on their manner of movement, rather than where the actor was initially seen. By silhouetting the actors and manipulating the background they were shown in later, the current study was able to identify a negative impact on recognition ability when actors were shown against a background they were not initially shown against while silhouetted. The implications of these results are discussed.

Appraisal theory posits that the addition of new, relevant, information can alter the outcome of the appraisal process for a given emotional elicitor, such as an animal. The current study aimed to explore whether the addition of animal movement would sufficiently influence the intensity of emotional reactions and action motivation ratings for animals. The current study compared self-reported emotional reactions and self-reported action motivations for still images and videos for six animal categories (snakes, spiders, cockroaches, tortoises, deer, and ducks). Our findings indicate that movement increases the intensity of relevant emotional reactions to cockroaches, tortoises, deer, and ducks, but not snakes or spiders. Action motivation ratings indicate that movement increases approach motivations for the positively associated animals but does not alter avoidance motivations for the negatively associated animals. The implications for our understanding of the perception of and reactions to animals are discussed.

The present study examined whether differential motion could influence the spread of attention across an object. In particular, we examined whether the type of motion exhibited by an object would impact the reaction time in which a participant made a judgement on the location of a target or the accuracy of their judgment. We did not find significant effects of motion type upon reaction time. We did find that accuracy was significantly greater for validly cued targets than for invalidly cued targets. Further investigation may be needed to demonstrate the impact of motion upon the spread of attention across an object.

FAU's Office of Undergraduate Research and Inquiry hosts an annual symposium where students engaged in undergraduate research may present their findings either through a poster presentation or an oral presentation.

FAU's Office of Undergraduate Research and Inquiry hosts an annual symposium where students engaged in undergraduate research may present their findings either through a poster presentation or an oral presentation.