Cognitive Psychology Commons^™

Caught Off Guard: The Fascinating Power Of Surprise In Capturing Covert And Overt Attention, Shahd Abu-Jazar

Brescia Psychology Undergraduate Honours Theses

Attention is a critical mental process that allows individuals to focus on pertinent information and filter out distractors. This study's primary goal was to examine how surprise draws attention, which is significant as it may have an impact on memory and learning. This study examines the influence of surprise on attentional capture, both overt and covert, across different levels of outcome predictability in everyday situations using repeated measures ANOVAs. Building on the concept that unexpected events can trigger heightened alertness and memory encoding, we hypothesized that scenarios with less-known outcomes would elicit a stronger attentional response compared to known and …

A Comprehensive Study Of Neural Entrainment In Developmental Language Disorder And Reading Disability, Christine Moreau

Electronic Thesis and Dissertation Repository

Prior research has suggested that reading disability (RD, dyslexia) and developmental language disorder (DLD) stem from deficits in rhythmic auditory processing, specifically in synchronizing neural oscillations (Cumming et al., 2015; Goswami, 2011). Speech relies on rhythmic patterns for signaling linguistic information at multiple timescales (e.g., phonemes, syllables; Giraud & Poeppel, 2012). The disruption of regular neural entrainment is hypothesized to lead to difficulties in processing fast acoustic changes in speech, negatively affecting phonological processing, and speech segmentation. In this dissertation, I studied neural entrainment to uncover possible areas of impairment related to speech tracking, which could help inform interventions. In …

Spontaneous Simulation Of Future And Past Events, Mackenzie Bain

Electronic Thesis and Dissertation Repository

Spontaneous future and past events come to mind unintentionally. Previous research supports that environmental cues prompt spontaneous simulation, although the role of specific cues remains unaddressed. Previous work has found that involuntary autobiographical memories are generated in chained-event sequences, which refers to multiple, related events being generated consecutively. We addressed how event and location cues influence spontaneous future and past events, and whether future events occur in chains. In a boring vigilance task, 132 participants located a left-facing arrow amongst right-facing arrows. On 49 of 350 trials, participants encountered event or location cues. Ten times, participants audio-recorded off-task thoughts they …

Quantifying Neuromelanin Content Across Varying Magnetic Field Strengths: A Comparative Analysis, Laiba Rizwan

Electronic Thesis and Dissertation Repository

Neuromelanin (NM) is an insoluble dark pigment molecule that is found in the substantia nigra of the human brain. Due to its paramagnetic nature, NM can be imaged using MRI in the form of neuromelanin sensitive contrast. This method, known as Neuromelanin Sensitive Magnetic Resonance Imaging (NM-MRI) allows non-invasive imaging of the human substantia nigra through its by-product, NM. NM-MRI research has been mostly done using lower field strength (3 or 1.5 Tesla) MRI scans. The advent of high field strength imaging, e.g., 7 Tesla (7T) provides the opportunity to study neuromelanin production sites with higher spatial resolution and enhanced …

Exploring The Effectiveness Of Mood Induction In Virtual Reality, Julia V. Ignaszewski

Electronic Thesis and Dissertation Repository

Mood induction procedures (MIPs) are commonly used by researchers who seek to examine affective states and their effects on other outcomes of interest. Despite their popularity, MIPs do not generate the same type of intense and influential emotions that are caused by life events, creating an empirical gap between naturalistic and experimentally manipulated emotion. Researchers have begun exploring the use of virtual reality (VR) to address these flaws, as its engaging and immersive nature could confer higher ecological validity for laboratory-induced emotions. This study compared the effectiveness of fear-elicitation via a VR cinema MIP to that of a standard film …

False Recognition: Revisiting The Account For Pictorial Encoding, Katarina Jovanovic

Western Libraries Undergraduate Research Awards (WLURAs)

False recognition is an inaccurate claim of having previously encountered a non-presented test item. Exceptionally high levels of false recognition are observed when participants are exposed to lists of semantically related words. Israel and Schacter (1997) showed that presenting pictures of items with their auditory label during the encoding phase significantly reduced false recognition relative to presenting only words with their auditory label. The current study excluded the auditory labels and instead investigated whether presenting pictures of items along with words during encoding would also reduce false recognition relative to presenting the written words only. The results provided no evidence …

A Transdiagnostic Examination Of Cognitive Heterogeneity In Children And Adolescents With Neurodevelopmental Disorders, Sarah Al-Saoud, Emily S. Nichols, Emma G. Duerden, Loretta Norton

Western Libraries Undergraduate Research Awards (WLURAs)

Children and adolescents with neurodevelopmental disorders (NDDs) demonstrate extensive cognitive heterogeneity that is not adequately captured by traditional diagnostic systems. Using a transdiagnostic approach, a retrospective cohort study of cognitive functioning was conducted with a large heterogenous sample (n = 1529) of children and adolescents 7 to 18 years of age with NDDs. Measures of short-term memory, verbal ability, and reasoning were administered to participants with attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder (ASD), comorbid ADHD/ASD, and typically developing (TD) participants using a 12-item web-based neurocognitive testing battery. Unsupervised machine learning techniques were implemented to create a self-organizing map (SOM), …

Investigating The Language Of Time: Evaluating The Use And Comprehension Of Before And After, Kimberley R. Henderson

Electronic Thesis and Dissertation Repository

Before-initial sentences are thought to be more difficult to comprehend than after-initial sentences because they structurally mismatch the temporal order of real-world events (Münte et al., 1998). Although event knowledge is known to affect how people understand before/after-initial sentences, little is known about the role of language knowledge in comprehending these sentences. A corpus analysis of before/after-initial sentences revealed that before typically is paired with a pronoun (Before he…) whereas after is paired with verb-ing (After leaving…). Participants' eyes were tracked while they read Before/After-pronoun/verbing sentences. Reading times did not match the …

Investigating Neural Mechanisms Associated With The Double Empathy Problem Using Fnirs Hyperscanning, Kate E. Turner

Electronic Thesis and Dissertation Repository

The Double Empathy Problem posits that autistic social difficulties are due to differences in communication styles rather than an autistic deficit in theory of mind (ToM). We used fNIRS hyperscanning to examine whether neural synchrony in pairs with varying levels of autistic traits during social interactions supports the Double Empathy Problem. Participants with low and high autistic trait expression were paired creating High-High, Low-High, and Low-Low groups. Pairs completed two trials where they 1) listened to and 2) discussed stories that contained or lacked theory of mind elements, while brain activity was recorded within the ToM network. During conversation, High-High …

Spontaneous Intrapersonal Synchrony And The Effect Of Cognitive Load, Ramkumar Jagadeesan

Electronic Thesis and Dissertation Repository

Spontaneous intrapersonal synchronization is the spontaneous synchronization of periodic behaviors within an individual. It is less investigated than spontaneous interpersonal synchronization, the synchronization of periodic behaviors that occurs spontaneously between individuals integrated into a single system through coupling, caused by the exchange of sensory feedback between them. It was therefore hypothesized that periodic behaviors produced by an individual, a single system by default, would spontaneously be more synchronous through exchange of sensory feedback, coupling and integration within the individual, when the behaviors are produced simultaneously, compared to separately. Based on a postulate that explains spontaneous interpersonal synchronization as a strategy …

Fraction Magnitude Understanding Across Learning Formats: An Fmri Study, Chloe A. Henry

Electronic Thesis and Dissertation Repository

Knowledge of fraction magnitudes are an important, but notoriously difficult mathematical concept to master. Behavioural work has begun to explore and compare the instructional tools used for fraction learning. However, how fraction instructional tools are processed in the brain remains an underexplored question. Therefore, in the present thesis, we used functional brain MRI methodology to examine the neural activity of adult participants while completing a fraction verification task using the number line and area model, two common methods of fraction learning. We found that both models commonly recruited fronto-parietal activity, the neural regions typically implicated in number processing. However, we …

Examining The Paradox Of Adult Second Language Word And Grammar Learning, Leah Brainin

Electronic Thesis and Dissertation Repository

Background: Adults generally demonstrate advanced cognitive skills compared to children, with second language (L2) learning being a key exception, particularly within the grammar domain. As optimal vocabulary and grammar learning are believed to engage in distinct explicit and implicit learning mechanisms, respectively, the advanced neurocognitive mechanisms underpinning adults’ higher-order cognitive skills may particularly interfere with implicit grammar learning. The objective of this dissertation was to examine select neural and cognitive factors that may contribute to word and grammar learning differences.

In Study 1, I investigated the neural correlates of artificial vocabulary and morphology learning using functional Near-Infrared Spectroscopy …

Individual Differences In Decision-Making And Emotions: A Study Of Alexithymia Using The Columbia Card Task, Kaycee A. Stewart Ms.

Electronic Thesis and Dissertation Repository

Making effective decisions requires a balance between rational thinking and emotional processing. Optimal decision-making approaches involve carefully analyzing available information to make informed and advantageous choices. This study investigates how people’s ability to identify, process, and express emotions (alexithymia) relates to their decision-making in different emotional contexts. We used the Hot and Cold versions of the Columbia Card Task (CCT) to evaluate how participants make decisions. By analyzing their decisions as a function of their alexithymia levels and three manipulated game parameters (loss probability, loss amount, and gain amount), we discovered that people with higher levels of alexithymia had reduced …

The Coding Flexibility Of Radical Position In Chinese, Zian Chi

Electronic Thesis and Dissertation Repository

Although there are theories of word recognition/reading predicting a transposed letter (TL)-type effect in Chinese character recognition, specifically, a transposed radical (TR) effect, no empirical demonstrations of TR effects have been reported to this point. As a result, instead of adopting a position-general assumption of radical processing, a position-specific assumption of radical processing has been adopted in most Chinese character recognition models. In the present Experiment 1, computational models were created in order to determine whether models that do not make the position-general assumption can account for any TR effect if one were to be found. In Experiment 2, 3, …

The Psychotherapeutic Effects Of Consumer-Grade Eeg Neurofeedback On Mental Health And Well-Being, Madeline Slack

Electronic Thesis and Dissertation Repository

The current study assessed whether pairing mindfulness meditation with consumer-grade neurofeedback (using Muse) would be a feasible and satisfying (i.e., fulfillment and pleasure) intervention for mental health and well-being. This was assessed via a four-day mindfulness program where participants (N=34) were assigned to mindfulness with neurofeedback (n=17) or guided meditation (control; n=17) group. On each day of the program, participants engaged in two mindful sessions (five minutes each) in the morning and afternoon. Participants were administered a series of affective measures before and after the program, as well as throughout. Upon completion, participants were asked to rate …

Individual Differences In Categorization, Urooj Anees

Undergraduate Student Research Internships Conference

The appearance of individual differences used to be regarded as noise in psychological experiments, but is slowly becoming a tool used to enhance and solidify findings in various fields of cognitive psychology. This presentation aims to very briefly discuss individual differences and categorization and what questions future research could aim to answer.

Role Of The Default-Mode Network During Narrative Integration In Major Depressive Disorder, Darren Ri-Sheng Liang

Electronic Thesis and Dissertation Repository

How brain activity is synchronized across individuals during narrative comprehension has previously been characterized by functional magnetic resonance imaging (fMRI) in healthy and patient populations. To our knowledge, there has been limited investigation as to how it is affected by major depressive disorder (MDD). We addressed this issue with fMRI through examination of inter-subject synchronization in the default mode network (DMN), brain structures which have previously been implicated in MDD pathology. Twenty-two patients with MDD and 20 matched control participants listened to Intact versus Scrambled versions of an auditory narrative; these experimental conditions differed in the degree of temporal integration …

Assessing The Impact Of Lipopolysaccharide On Learning And Memory In Rats, Anahat Luthra

Undergraduate Student Research Internships Conference

The immune system and the central nervous system (CNS) have a bi-direction relationship, modulating one another.⁴ Proinflammatory cytokines released from CNS immune cells have an impact on cognitive processes such as learning and memory.¹ Liposaccharide (LPS), a cell wall component of Gram-negative bacteria, which is used to activate proinflammatory cytokine release has been found to impact learning and memory processes, such as in the anticipatory nausea paradigm (ANP).² Anticipatory nausea and vomiting is that which may occur before a chemotherapy treatment session begins in a patient who has had chemotherapy before. It is caused by triggers like …

Using A Musical Beat To Influence Linguistic Statistical Learning, Aspen Leung

Undergraduate Student Research Internships Conference

The similarities between music and language continue to provide research questions in the area of psychology. Despite the large amount of research on this area of knowledge, there are still many existing questions in regards to the processing of musical and linguistic stimuli. Statistical learning involves the ability to extract statistical regularities from a stimulus and continues to be studied in both domains due to the similar hierarchical structure of music and language. Recently, neural entrainment (the synchronization of neural oscillations with the rhythm of an external stimulus) has been studied as a mechanism of statistical learning. Music has been …

The Influence Of Personality Trait Variation On Curiosity Seeking Behaviours, Brian Krivoruk

Undergraduate Student Research Internships Conference

Curiosity is defined as our desire to acquire new information and leads us to engage in information-seeking behaviours. The present study investigates how personality influences curiosity-based information-seeking behaviours during a state of curiosity induced by unsuccessful memory recall. Specifically, this study assessed the personality traits of deprivation-type (D-type), interest-type (I-type), and intolerance of uncertainty to explore their role in curiosity-based decisions making. Information-seeking choices were examined during unsuccessful recall in a paradigm using face-name pairs. The behaviour was correlated with responses from a series of questionnaires that looked at personality traits associated with curiosity and information-seeking. The findings suggested that …

Auditory Sensory Filtering And Development In Children With Autism Spectrum Disorder, Hiruthika Ravi, Ala Seif, Ryan A. Stevenson

Undergraduate Student Research Internships Conference

Sensory filtering is the process of separating and distilling relevant sensory information from irrelevant, which in turn greatly reduces the quantity of sensory information that is fully processed and leads to significant increases in efficiency. Atypical sensory filtering can result in sensory hypo- or hypersensitivity — atypical sensory filtering and hypo/hypersensitivity have been observed in people with autism. Atypical sensory filtering contributes to canonical symptoms in Autism.

Sensory filtering can be measured in a few different ways, one of which is the Acoustic Startle Response (ASR). ASR is a reflexively produced muscular reaction to sudden auditory stimuli.

Our study aims …

The Spacing Effect In Remote Information-Integration Category Learning, Anthony Cruz

Electronic Thesis and Dissertation Repository

The present study examined whether the temporal distribution of procedural category learning experiences would impact learning outcomes. Participants completed the remote category learning study on a smartphone in one of two learning conditions: Massed (control) or distributed. Consistent with expectations, distributed learners reached higher accuracy levels. This effect disappeared after accounting for reaction time differences, suggesting that it was driven by attentional mechanisms. Distribution may have made participants more likely discover the optimal categorization strategy and more robust to sensory habituation. Counter to previous findings, participants favored distributed learning. These results suggest that adult category learning is facilitated by temporal …

Culture And Classification: Investigating Analytic Vs. Holistic Thinking Styles, Neha Khemani

Electronic Thesis and Dissertation Repository

This paper sought to explore cultural preferences for analytic and holistic thinking in classification. Experiment 1 paired the Shepard, Hovland, and Jenkins (SHJ) tasks with the Analysis-Holism scale (AHS) and a demographics questionnaire. Effects of culture on learning rates, alongside the feasibility of online data collection, were assessed. Learning difficulty differences among the six SHJ category sets were observed. Further, as predicted, higher holistic thinking correlated positively with the family resemblance task. Experiment 2 replicated the Norenzayan et al. (2002) task. Unlike in the original study, the effect of instructional condition was not significant across our full sample. Nevertheless, the …

Using Spoken Narratives To Measure Listening Engagement In Children, Sarah Bobbitt

Electronic Thesis and Dissertation Repository

Despite the rising popularity of audiobooks and podcasts, research on children listening to spoken stories remains in its infancy. In addition, the use of spoken stories could significantly improve studies of listening engagement in children. Thus, the present study sought to 1) explore how children aged 8-13 years engage with these novel media and 2) determine which stories might be most engaging to children in this age group. Fifty-two parents of children aged 8-13 years completed an online survey which asked about their children’s listening habits. Results of the survey then informed the development of four engaging stories (and two …

Developmental Differences In The Learning And Consolidation Of Linguistic Regularities, Sarah Berger

Electronic Thesis and Dissertation Repository

Relative to adults, children have a well-known advantage for learning linguistic regularities, which could be partially driven by their deeper sleep. To examine the relationship between consolidation and language learning across development, children and adults learned a novel article system with an implicit grammatical rule. Participants performed a judgment task on phrases containing the novel articles before and after a night of EEG-monitored sleep. We found that rule sensitivity emerged rapidly in children, whereas it did not emerge until the second session in adults. Children demonstrated better generalization of the rule than adults. Consolidation effects showed a developmental double dissociation, …

Temperament And Individual Differences In Category Learning, Tianshu Zhu

Electronic Thesis and Dissertation Repository

Objectives. Individuals can differ in their strategic approach in learning the same categorization task, researchers have sought to study what specific stable individual differences traits can help explain these differences. This dissertation first surveyed extant literature on the impact of trait differences on category learning then examined the effect of temperament traits on these dependent variables. Chapter 2 (scoping review): This scoping review synthesized the past literature that examined the relationship between sources of stable individual differences and category learning performance and strategy use outcomes. Five database platforms were searched to identify relevant articles, cross-referencing was also performed. Sixty-nine studies …

Seeing Thro The Musical Eye: Santo Daime, Fuke-Shū, 1960s Psychedelia, And The Antipodes Of Musical Experience, Forest Anthony-Muran

Electronic Thesis and Dissertation Repository

This thesis investigates the relationships between altered states of consciousness and the musical experience in religious tradition and practice. A common accompaniment to religious worship and ceremony, music is often used as a way of attempting to capture something of the ineffable and to help bring about a mystical experience. In this thesis, I make use of three contrasting case studies – the Brazilian syncretic religion Santo Daime, the historical branch of Zen Buddhism Fuke-shū, and the psychedelic rock of 1960s counterculture – to paint a portrait of the variety of ways that music has been used in different musical …

Optimizing Music Learning: The Effects Of Contextual Interference On Memorization, Carmen Andrea Wong

Undergraduate Honors Theses

The purpose of this study was to assess if blocked or interleaved practice learning was more effective for memorizing music, and to assess if metacognitive judgements aligned with performance. The study included 21 proficient pianists who regularly engage in piano practice. Participants learnt two excerpts and two technical studies, and played them from memory on both day 1 and day 2 of testing. Performances were recorded and rated by an expert in the field on a percentage scale. A two-way repeated measures ANOVA analysis revealed no significant main effect of day on practice schedule, (F(1,20) = .15, p = 0.70, …

It's Not My Phone, It’S Me: Investigating Smartphone Presence And Predictors Of Smartphone Reliance, Ana C. Ruiz Pardo

Electronic Thesis and Dissertation Repository

Objectives: Smartphones are nearly ubiquitous and as a result, researchers have sought to study whether there are negative consequences that result from this inescapable device. Extended exposure to seemingly endless resources, entertainment, and communications has brought forward the issue of smartphone reliance and the effect of smartphone presence on cognition. This dissertation investigated the effect of smartphone presence on cognition and predictors of smartphone reliance using six studies. Chapter 2 (one study): A replication of Ward et al.'s (2017) second study was completed. Participants completed a difficult working memory task and a response inhibition task while leaving their smartphone either …

Investigating The Role Of Targeted Memory Reactivation In Sleep Spindle Production, Justin W. Hopper

Electronic Thesis and Dissertation Repository

In ‘targeted memory reactivation’ (TMR) paradigms, information learned during wakefulness is paired with a cue, and reactivated during sleep by presenting that same cue. TMR improves memory. In a prior study (Antony et al., 2012), participants learned two melodies. One melody was cued during a nap, and performance was better than for the uncued melody. The current study reanalyzed these data to characterize sleep spindle density during TMR cue-periods relative to non-cued periods, and whether spindle density correlated with performance. During TMR stimulation, spindle density was significantly higher than during non-stimulation in four time windows. Compared to the non-TMR group, …