Psychology Commons^™

Grammatical Aspect, Temporal Adverbs, And Situation Models, Valerie Hemeon

Theses and Dissertations (Comprehensive)

Grammatical aspect and temporal cues have been shown to impact discourse processing. To explore this further, we contrasted temporal adverbs that move narrative timelines forward or backward. Although previous research has examined timelines independently, it was yet to be explored how timeline adverbs impact discourse processing when grammatical aspect and temporal cues are also manipulated. The experiment involved a sentence-completion task which allowed us to measure availability of target discourse concepts in situation models. Results showed main effects for grammatical aspect, temporal shifts, and narrative timeline directions. Three two-way interactions were found. The results demonstrated support for the iconicity assumption …

The Influence Of Visual Perspective On The Cognitive Effort Required For Mental Representation, Jeffrey P. Hong

Theses and Dissertations (Comprehensive)

Mental representation is the process by which an individual simulates an event in their mind’s eye. This process is the foundation of the ability to remember the past, engage in prospective thinking, or imagine fictitious scenarios. An individual can mentally represent any event through their own eyes—the first-person perspective or from the viewpoint of an external observer—the third-person perspective. The perspective of representation influences outcomes related to memory, visuospatial processing, affect, social cognition, clinical diagnoses, and language processing. In turn, an individual’s tendency to favour either perspective is shaped by related factors.

The current research consists of four experiments, designed …

Examining The Effects Of Noise And Task Dependent Performance In Prosody Perception In Autistic Individuals, Zehranur Sasal

Theses and Dissertations (Comprehensive)

ABSTRACT

Objective: It is known that autistic individuals have enhanced abilities in pitch discrimination and tend to excel in low-level tasks requiring lower cognitive processing. On the other hand, noise is a distracting factor in many areas of life, including prosody perception. The studies presented in this thesis aimed to understand prosody perception through different levels of cognitive tasks and under the influence of speech background noise.

Methods: In total, 256 non-autistic and 39 high-functioning autistic adults participated in these studies. In the first study, participants were asked to listen to brief utterances conveying one of six universally accepted emotions …

The Long-Term Effects Of Cannabis On Attention To Motion, Rachel Mccaig

Theses and Dissertations (Comprehensive)

The purpose of the following study was to investigate the long-term effects of cannabis use on attention to motion.

Methods: Cannabis users, who varied in age of onset of use, were compared to control participants after abstaining from cannabis for at least 24 hours. One-hundred and ninety-seven participants engaged in a cognitive assessment followed by a motion discrimination task and an attention to motion task. The assessment consisted of a series of standard tasks that measured a range of cognitive processes such as attention, memory, and executive functioning. The motion discrimination task assessed the participants’ abilities in discriminating between various …

The Contribution Of Phonological Overlap To The Cognate Effect: An Event-Related Potential Study Of Persian-English Bilinguals, Zahra Fotovatnia

Theses and Dissertations (Comprehensive)

The purpose of this dissertation was to examine the contribution of phonological overlap to visual word recognition. More specifically, this study aimed at testing the phonological account of the cognate effect (i.e., faster and more accurate mental processing of cognates than noncognates) in visual word recognition in Persian and English, which are languages with different scripts. The phonological account attributes the cognate effect to the phonological similarity of cognates (form and semantically related words) in addition to the conceptual similarity that cognates and noncognates (semantically related words) have and to the degree of phonological similarity between cognates in two languages. …

Thinking About Making A Connection: Exploring The Role Of Metacognition In Recognition Memory For Associative Information, Mario E. Doyle

Theses and Dissertations (Comprehensive)

In a set of six experiments, the relation between metacognition and associative memory was explored. The purpose was to determine whether the metacognitive behaviors that are used with item memory are also used with associative memory. Different memory systems have separate underlying processes which can cause mnemonic strategies to only be useful for some types of memory. People use metacognition to monitor and control their memory; however, it is uncertain whether metacognitive monitoring and control are the same for different types of memory. The research presented in this dissertation demonstrates the similarities and differences between metacognitive behavior for item and …

The Electrophysiological Correlates Of Text Integration And Direct Vs. Indirect Articles: A Centralized And Lateralized Examination, Deanna C. Hall

Theses and Dissertations (Comprehensive)

As we read, we develop mental models of the discourse content called situation models. Situation models are integral to how we keep track of information, and to do so in an ongoing event incoming information needs to be integrated into the model or discarded. The type of information being presented, and its relation to prior data, impacts how that new information is processed. The current research examined discourse passages containing concepts that were either previously mentioned (match), mentioned with a general term (general category), unmentioned in lieu of another concept (mismatch), or completely unmentioned previously (indeterminate), and examined how these …

Investigating The Use Of Mental-State Talk In Parent-Child Joint Reminiscing And Storytelling On Children’S Source Monitoring, Holly Autumn Nelson

Theses and Dissertations (Comprehensive)

Source monitoring is the process of identifying and analyzing sources of information (Johnson et al., 1993). The ability to monitor source improves with age which places children at a greater risk for blending and misattributing information from different sources. Experiencing source confusions has academic, legal, and social implications, and thus understanding how source monitoring develops is important. Research exploring factors that impact source monitoring have predominantly focused on maturational aspects such as at which ages children learn to monitor source and neurological factors such as executive functioning. However, the impact of age and executive functioning may vary across the type …

Investigating The Inhibition Of The Return Of Attention In The Tactile Domain, Robert Plax

Theses and Dissertations (Comprehensive)

Purpose: The time-course needed to elicit tactile inhibition of return (IOR) has not been well-defined due to the paucity of research in this area especially studies investigating spatial discrimination. Reportedly tactile IOR uses higher-order mental representations to orient attention spatially yet the properties of low-level dermatomal maps may better account for how IOR orients tactile attention in space although its contribution is unclear. The present study sought to establish a time-course that evokes IOR in a unimodal tactile spatial discrimination task and decouples the contribution of the dermatome from higher-order representations. Methods: Two conditions containing distinct tactile cue-target paradigms designed …

Exploring Psychological Readiness To Return To Sport After Injury, Scott Donald

Theses and Dissertations (Comprehensive)

Athletes are often cleared to return to sport with little emphasis on psychological readiness in relation to physical readiness. This is important because athletes who are not psychologically ready to return to sport (RTS), despite being physically cleared, may lack motivation to compete and lack confidence in their abilities (Podlog, Banham, Wadey, & Hannon, 2015), drop out of sport, fear re-injury (Ardern et al., 2014), worry about future performance (Podlog & Eklund, 2006), experience anxiety and feel depressed (Tracey, 2003) or incur further injury (McCullough et al., 2012). Remarkably, there is no definition of psychological readiness consistently used in the …

Dynamic Balance Control And Segmental Orientation While Listening During Walking: Effects Of Age And Hearing Loss, Sin Tung Lau

Theses and Dissertations (Comprehensive)

Dynamic control of balance changes with age and changes with declines in sensory and cognitive abilities. For instance, emerging, yet robust associations between hearing loss and poor mobility have been described and yet the mechanism underlying these associations remains unknown. It could be that age-related declines in hearing ability result in different kinematic strategies when having to walk and listen at the same time (e.g. head and body orienting responses toward sounds) and/or that declines in hearing result in increased cognitive load during listening, at the detriment to mobility-related performance. Therefore, this thesis sought to better characterize these associations by …

Comparison Of The Sensitivity Of Yes/No And Forced Choice Associative Recognition, Garrett Schliewinsky

Theses and Dissertations (Comprehensive)

Yes-no (YN) and forced choice (FC) associative recognition tasks were compared across three experiments to test the varying effects of familiarity. Schliewinsky and Hockley (2016) previously found a discrimination advantage for FC tasks over YN tasks when word pairs were familiarized. The present research is a continuation to further explore the effects of increased familiarity. Experiment 1 manipulated the familiarity of individual items in the word pairs. No discrimination advantage for the FC condition over the YN condition was found when only item familiarity was increased, emphasizing the importance of associative information for accurate associative recognition. There was, though, a …

Investigating The Roles Of Mechanoreceptive Channels In Tactile Apparent Motion Perception: A Vibrotactile Study, Phill Kim, Philip Servos Dr.

Theses and Dissertations (Comprehensive)

Tactile apparent motion (TAM) is a perceptual phenomenon in which consecutive presentation of multiple tactile stimuli creates an illusion of motion. Employing a novel tactile display device, the Latero, allowed us to investigate this. The current study focused on the Rapidly Adapting (RA) channel and Slowly Adapting I (SAI) channel on the index finger. The experiment implemented vibrotactile masking stimuli to target the mechanoreceptive channels with the goal of gaining better insight into the involvement of mechanoreceptive channels in the perception of TAM. Masking stimuli were used because previous studies have used them to differentiate between different channels; a …

An Examination Of Imagined Contexts: The Unreliability Of Context-Dependent Memory Effects In Recall, Caitlin J. I. Tozios

Theses and Dissertations (Comprehensive)

It is generally accepted that the environmental context present during memory encoding serves as an effective cue for recall if reinstated during retrieval. Participants who perform a free recall test in the same context as that during which they learned a set of words, often remember more words than participants who experience a context mismatch from encoding to retrieval. This is referred to as the context-dependent memory effect and forgetting due to a change in context is referred to as context-dependent forgetting. Recent evidence suggests that contexts need not always be physical but can be mentally generated or imagined and …

Investigating The Effects Of Mindfulness On Children’S Executive Function, Emotional Regulation, Stress, And Academic Performance Compared To A Control Condition, Lerna Hanceroglu

Theses and Dissertations (Comprehensive)

Mindfulness is a growing field in the study of psychological well-being, with reports of individuals experiencing increases in resilience and reduced stress. The current research on mindfulness lacks information on a comprehensive analysis on the relationship between mindfulness and executive function, emotional regulation, stress, and subsequent academic performance for children. Additionally, studies contain methodological issues, such as the absence of active control groups. Hence, the current study assessed the effects of mindfulness training on children’s executive function, emotional regulation, stress, and academic outcomes compared to an active control group. There were 51 younger children from grades 2 to 4 (Mean …

Differences In Frn And P300 Amplitudes Among Hockey Fans Versus Non-Hockey Fans In Response To Relevant And Irrelevant Information., Omar Rafiq

Theses and Dissertations (Comprehensive)

Sports bettors tend to rely on statistical information about an athlete or team’s past performance even though this type of information often has no predictive value. The belief that this statistical information can help predict future performance is typically held by experts and novices alike. A recent study conducted by Cheng and colleagues (in preparation) suggests that sports bettors do not process decision outcomes that are based on relevant information in the same way that they process decision outcomes based on irrelevant information. Specifically, they found differences in the event-related potential component known as Feedback-Related Negativity (FRN), such that FRNs …

Auditory Erp Differences Across A Continuum Of Psychotic Symptoms In Non-Clinical Population, Anaya Rehman

Theses and Dissertations (Comprehensive)

Psychosis is a term given to a mental state described as a loss of contact with the real world. The aim of this thesis was to examine early non-specific psychotic experiences in a healthy population by means of two self-report screening tools: Prime Screen and Youth Psychosis At-Risk Questionnaire-Brief, and place individuals on a psychosis continuum. Across this psychosis continuum, three event related potential (ERP) components were assessed: P300, Mismatch Negativity and N100. There is evidence that P300 and mismatch negativity amplitudes diminish in individuals with psychosis. Similarly, impaired N100 amplitude suppression (increased N100 amplitudes) during vocalization has been observed …

Exploring Metacognition, Multitasking And Test Performance In A Lecture Context, Fatma Arslantas

Theses and Dissertations (Comprehensive)

Multitasking has become more prevalent with recent advancements in technology (Judd, 2014; Junco & Cotten, 2012). Many self-report studies, and the few available experimental manipulations, consistently indicate that media multitasking is related to decrements in learning. The present study extends the current literature by explicitly documenting students’ responses to media-based interruptions to learning. The current study also documents other behaviours students engage in that may or may not be related to multitasking when technology is available during lectures. In addition, the study explores the role of metacognition as a contributor to learning in a media-rich educational setting. In total, 118 …

The Influence Of Freedom And Choice In Action Selection And The Valence Of Action-Outcomes On The Sense Of Agency, Zeynep Barlas Wilfrid Laurier University

Theses and Dissertations (Comprehensive)

Sense of agency (SoA) refers to the subjective experience that one is the author of their actions and the ensuing outcomes of these actions. Previous research have suggested that both sensorimotor processes and high level inferences can contribute to the SoA. In five experiments, the present thesis examined the effects of action selection processes and the valence of action-outcomes on the SoA. The majority of these experiments measured the SoA by obtaining both subjective feeling of control (FoC) judgments over the action-outcomes, and assessing the size of intentional binding. Intentional binding refers to the perceived temporal attraction between actions and …

The Effects Of Altered Auditory Feedback On Speech Production In Adults: A Comparison Of Perturbation And Sensorimotor Adaptation Paradigms, Danielle S. Jacobson

Theses and Dissertations (Comprehensive)

Auditory feedback (AF) plays a crucial role in the acquisition and maintenance of fluent speech. AF allows speakers to monitor and correct for errors in their speech production and also plays an important role to create and maintain the sensorimotor relationships that support vocal motor control. To investigate the importance of AF for these functions, participants are typically exposed to brief, unexpected changes to their AF as part of a frequency altered feedback (FAF) perturbation paradigm, or persistent and predictable changes to their AF as part of a FAF adaptation paradigm. Although responses elicited from both the FAF perturbation and …

An Examination Of The Factors That Dictate The Relative Weighting Of Feedback And Feedforward Input For Speech Motor Control, Nichole E. Scheerer

Theses and Dissertations (Comprehensive)

Speech is arguably the most important form of human communication. Fluent speech production relies on auditory feedback for the planning, execution, and monitoring of speech movements. Auditory feedback is particularly important during the acquisition of speech, however, it has been suggested that over time speakers rely less on auditory feedback as they develop robust sensorimotor representations that allow speech motor commands to be executed in a feedforward manner. The studies reported in this thesis recorded speaker’s vocal and neural responses to altered auditory feedback in order to explore the factors that dictate the relative importance of auditory feedback for speech …

Children’S Ability To Identify An Unusual Occurrence Of A Repeated Event, Mckenzie K. Vanderloon

Theses and Dissertations (Comprehensive)

Abstract

Research on script memory shows that individuals have a difficult time isolating single instances of a repeated event because a generic script (e.g., one has a generic script for typical grocery shopping; grab a cart, gather items, then pay) has formed over time. Scripts capture the “gist” of what usually happens and allow individuals to predict what probably occurred based on the robustness of the script. Thus, individuals are able to identify details of what occurs; however, piecing which details came from a particular incident poses its challenges, especially for children. Source monitoring is the ability to accurately differentiate …

Connecting To Others: Studying The Relationship Between Social Exclusion And Imitation, Sarah K. Blyth

Theses and Dissertations (Comprehensive)

Automatic imitation (AI) refers to the subconscious tendency we have to imitate an observed action, even when that action is irrelevant to or interferes with an action we are attempting to execute (Heyes, 2011; Brass et al., 2000). Human beings display a fundamental need to stay meaningfully connected to others, also known as the need to belong. Previous research shows that an experience of rejection can reduce one’s feelings of connectedness to others (Legate et al., 2013), and that behaviours such as non-conscious mimicry (NCM) increase after being excluded as a possible means of re-affiliation (Lakin et al., 2008). It …

Imagining Accomplishments From Differing Visual And Temporal Perspectives, Deanna C. Hall

Theses and Dissertations (Comprehensive)

The current research examined the relationship between grammatical aspect (GA) (imperfective vs. past perfect) and accomplishment verbs in event representation in Experiment 1, and then investigated the influence of visual perspective taking on this representation process in Experiment 2. Electroencephalography (EEG) was recorded with slow cortical potentials (SCPs) acting as a measure of cognitive processing during the imagination period, and behavioural measure questionnaires provided ratings of vividness, temporal component, and importance of the imagined events.

It was hypothesized for Experiment 1 that imagining imperfective events would result in more negative SCP amplitudes than when imagining events with past perfect aspect, …

Influence Of Planning Resources On Gait Control In Parkinson’S Disease, Frederico P. Faria

Theses and Dissertations (Comprehensive)

Movement disturbances in individuals with Parkinson’s disease (PD) have been associated with difficulties to plan complex actions. Performance of simple and complex actions overloads resources for individuals with Parkinson’s disease (PD). However, it is unclear if central resources required to plan gait adjustments while walking exacerbate gait disturbances of patients with PD. More specifically, it is unclear how gait impairments, sensory processing, and the dopaminergic system influence the load on processing resources (e.g. cognitive load) during the planning of step modifications. In order to investigate the relative influence of these factors on cognitive load and its impact on gait control, …

The Effect Of Emotion On Associative And Item Memory, Priyanga Jeyarathnarajah

Theses and Dissertations (Comprehensive)

Numerous studies to date have demonstrated superior memory for emotional compared to neutral stimuli (Kensinger & Corkin, 2004; Bennion et al., 2013). This finding, although relatively stable across the item memory literature, becomes less consistent when examined in tasks measuring memory for associative or source information (Chiu et al., 2013). For this reason, the present study set out to examine how emotional content (negative, positive and neutral word pairs) influences memory in two distinct associative and item recognition tasks: associative identification (AI), associative reinstatement (AR), paired-item recognition, and single-item recognition. In measuring the influence of emotion on associations using an …

An Investigation Of The Increased Reliance On Familiarity In Associative Recognition Of Unitized Compound Word Pairs, Fahad Naveed Ahmad

Theses and Dissertations (Comprehensive)

Unitization refers to when two components are integrated or combined into a single unit. So the whole is more familiar than the parts (Graf & Schacter, 1989). Previous researchers have shown unitization of unrelated word pairs can occur by the use of compound definition. As support, they have found unitization to increase reliance on familiarity in associative recognition. The purpose of this PhD dissertation was to examine the effects of unitization of preexperimental associations on associative recognition. The effects of associative recognition of unitized compound word (CW) pairs can serve as a useful benchmark to compare to that of other …

A Heart-Based Sufi Mindfulness Spiritual Practice Employing Self-Journeying, Faruk Arslan

Theses and Dissertations (Comprehensive)

Spiritual Psychology is the study and practice of the art and science of the human evolution of consciousness. The heart occupies an important place in Sufism and is considered to contain the divine spark that leads to spiritual realization. Fethullah Gülen’s action-oriented Sufi methods described in his book series “The Emerald Hills of the Heart” provides the basis for a heart-based therapeutic intervention through self-journeying, which is the objective of this thesis. These self-purification and mindfulness-related transpersonal methods generate a form of treatment that is culturally sensitive. Through my reflections in this research, I transformed my personal experiences into …

Time, Perspectives, Verbs, And Imagining Events, Jeffrey P. Hong

Theses and Dissertations (Comprehensive)

During the processing of verbs, readers form internal representations of the events described by those verbs. Two key elements in the construction of event representations are temporal information, given by the verbs that describe the represented events, and the visual perspective from which the events are represented. The current study is composed of two experiments aimed at examining the roles these two factors play in event representation. Specifically, the study aimed to determine how temporal information and visual perspective are represented during event imagination.

Experiment 1 investigated the role of temporal information associated with verbs, given by grammatical aspect (GA) …

Neural Mechanisms Of Interference And Storage In Vibrotactile Working Memory, Tyler D. Bancroft

Theses and Dissertations (Comprehensive)

Vibrotactile working memory has attracted increasing attention in recent years. Substantial research into the neural correlates has been conducted, especially using single-cell paradigms in non-human primates (Romo & Salinas, 2003). The vibrotactile working memory system uses a relatively simple neural code for the representation of stimuli, making it possible to determine when stimulus information is present in the various cortical areas thought to be involved. In humans, vibrotactile working memory displays properties (such as overwriting mechanisms of interference) that make it an ideal system for testing general theories of working memory. In the present study, we demonstrate that vibrotactile working …