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Previous studies have found that the detection of near-threshold stimuli is decreased immediately before movement and throughout movement production. This has been suggested to occur through the use of the internal forward model processing an efferent copy of the motor command and creating a prediction that is used to cancel

Previous studies have found that the detection of near-threshold stimuli is decreased immediately before movement and throughout movement production. This has been suggested to occur through the use of the internal forward model processing an efferent copy of the motor command and creating a prediction that is used to cancel out the resulting sensory feedback. Currently, there are no published accounts of the perception of tactile signals for motor tasks and contexts related to the lips during both speech planning and production. In this study, we measured the responsiveness of the somatosensory system during speech planning using light electrical stimulation below the lower lip by comparing perception during mixed speaking and silent reading conditions. Participants were asked to judge whether a constant near-threshold electrical stimulation (subject-specific intensity, 85% detected at rest) was present during different time points relative to an initial visual cue. In the speaking condition, participants overtly produced target words shown on a computer monitor. In the reading condition, participants read the same target words silently to themselves without any movement or sound. We found that detection of the stimulus was attenuated during speaking conditions while remaining at a constant level close to the perceptual threshold throughout the silent reading condition. Perceptual modulation was most intense during speech production and showed some attenuation just prior to speech production during the planning period of speech. This demonstrates that there is a significant decrease in the responsiveness of the somatosensory system during speech production as well as milliseconds before speech is even produced which has implications for speech disorders such as stuttering and schizophrenia with pronounced deficits in the somatosensory system.
ContributorsMcguffin, Brianna Jean (Author) / Daliri, Ayoub (Thesis director) / Liss, Julie (Committee member) / Department of Psychology (Contributor) / School of Life Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
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Previous research has shown that a loud acoustic stimulus can trigger an individual's prepared movement plan. This movement response is referred to as a startle-evoked movement (SEM). SEM has been observed in the stroke survivor population where results have shown that SEM enhances single joint movements that are usually performed

Previous research has shown that a loud acoustic stimulus can trigger an individual's prepared movement plan. This movement response is referred to as a startle-evoked movement (SEM). SEM has been observed in the stroke survivor population where results have shown that SEM enhances single joint movements that are usually performed with difficulty. While the presence of SEM in the stroke survivor population advances scientific understanding of movement capabilities following a stroke, published studies using the SEM phenomenon only examined one joint. The ability of SEM to generate multi-jointed movements is understudied and consequently limits SEM as a potential therapy tool. In order to apply SEM as a therapy tool however, the biomechanics of the arm in multi-jointed movement planning and execution must be better understood. Thus, the objective of our study was to evaluate if SEM could elicit multi-joint reaching movements that were accurate in an unrestrained, two-dimensional workspace. Data was collected from ten subjects with no previous neck, arm, or brain injury. Each subject performed a reaching task to five Targets that were equally spaced in a semi-circle to create a two-dimensional workspace. The subject reached to each Target following a sequence of two non-startling acoustic stimuli cues: "Get Ready" and "Go". A loud acoustic stimuli was randomly substituted for the "Go" cue. We hypothesized that SEM is accessible and accurate for unrestricted multi-jointed reaching tasks in a functional workspace and is therefore independent of movement direction. Our results found that SEM is possible in all five Target directions. The probability of evoking SEM and the movement kinematics (i.e. total movement time, linear deviation, average velocity) to each Target are not statistically different. Thus, we conclude that SEM is possible in a functional workspace and is not dependent on where arm stability is maximized. Moreover, coordinated preparation and storage of a multi-jointed movement is indeed possible.
ContributorsOssanna, Meilin Ryan (Author) / Honeycutt, Claire (Thesis director) / Schaefer, Sydney (Committee member) / Harrington Bioengineering Program (Contributor) / Barrett, The Honors College (Contributor)
Created2016-12
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Jane Austen’s depictions of musical performers and listeners in her novels suggest her belief that musical performances should strengthen intimacy between people, both between listeners and performers as well as among listeners. Austen commends music for its power to increase intimacy through honest expressions of taste, which more often arise

Jane Austen’s depictions of musical performers and listeners in her novels suggest her belief that musical performances should strengthen intimacy between people, both between listeners and performers as well as among listeners. Austen commends music for its power to increase intimacy through honest expressions of taste, which more often arise in private performances, but she warns against its power to decrease intimacy through pretentious displays of taste, which more often arise in public performances. Austen’s belief that music allows for this healthy intimacy indicates that music has great significance in society. Austen suggests that music has a greater importance to everyday life than many may originally suppose, as it is a universal connection between people. Ultimately, Jane Austen’s perspective of music’s great power both to expose pretentiousness and to cultivate intimacy should lead all of her readers to recognize and respect music’s true power and to consider seriously the importance and role of music in their own lives.

Created2021-05
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I will demonstrate through analysis that the effectiveness of music in social movements relies in large part on two unique elements: authenticity and collective action. I will then argue that these elements are antithetic to the actual conditions of music production as the 21st century progresses in America. While this

I will demonstrate through analysis that the effectiveness of music in social movements relies in large part on two unique elements: authenticity and collective action. I will then argue that these elements are antithetic to the actual conditions of music production as the 21st century progresses in America. While this paper does not explore the possible effectiveness of movements without music, I emphasize the well documented ((Futrell, et. al. (2006), (Roy, 2010), (Dyck, 2017)) link between music and social movements, and conclude that this relationship between music and social movements is in danger.
ContributorsCochlin, Fallon Julia (Author) / Fette, Don (Thesis director) / Lauderdale, Pat (Committee member) / Historical, Philosophical & Religious Studies (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
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Recent findings support that facial musculature accounts for a form of phonetic sound symbolism. Yu, McBeath, and Glenberg (2019) found that, in both English words and Mandarin pinyin, words with the middle phoneme /i:/ (as in “gleam”) were rated as more positive than their paired words containing the phoneme /ʌ

Recent findings support that facial musculature accounts for a form of phonetic sound symbolism. Yu, McBeath, and Glenberg (2019) found that, in both English words and Mandarin pinyin, words with the middle phoneme /i:/ (as in “gleam”) were rated as more positive than their paired words containing the phoneme /ʌ/ (as in “glum”). The present study tested whether a second largely orthogonal dimension of vowel phoneme production (represented by the phonemes /æ/ vs /u/), is related to a second dimension perpendicular to emotional valence, arousal. Arousal was chosen because it is the second dimension of the Russell Circumplex Model of Affect. In phonetic similarity mappings, this second dimension is typically characterized by oral aperture size and larynx position, but it also appears to follow the continuum of consonance/dissonance. Our findings supported the hypothesis that one-syllable words with the center vowel phoneme /æ/ were reliably rated as more rousing, and less calming, than matched words with the center vowel phoneme /u/. These results extend the Yu, et al. findings regarding the potential contribution of facial musculature to sounds associated with the emotional dimension of arousal, and further confirm a model of sound symbolism related to emotional expression. These findings support that phonemes are not neutral basic units but rather illustrate an innate relationship between embodied emotional expression and speech production.
ContributorsGreenstein, Ely Conrad (Author) / McBeath, Michael (Thesis director) / Glenberg, Arthur (Committee member) / Patten, Kristopher (Committee member) / Historical, Philosophical & Religious Studies (Contributor) / Department of Psychology (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
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Music both created and consumed by Soviet soldiers during the war in Afghanistan provides an insight into their opinions and criticisms of the war. Music allowed soldiers to vent, to give voice to their experiences, as well as to rationalize their participation in the conflict, enabling them to inject their

Music both created and consumed by Soviet soldiers during the war in Afghanistan provides an insight into their opinions and criticisms of the war. Music allowed soldiers to vent, to give voice to their experiences, as well as to rationalize their participation in the conflict, enabling them to inject their personal opinions and perceptions of the war into memorable and poetic forms. Through analyzing the Soviet songs about the of Afghan war, we can create a chronological timeline charting the development of resentment and disillusionment among Soviet soldiers: the initial patriotic songs borrowed from prior conflicts soon declined in popularity, replaced with mournful songs reflecting soldiers’ nostalgia for home and fear of death in their daily lives. Their lyrics reveal feelings of anxiety, disenfranchisement and abandonment, all resulting from the Soviet state’s ineffective handling of the war. In addition to songs produced by soldiers themselves, bands within Soviet borders such as Kino also wrote songs about the conflict, using their star power to draw attention to the conflict in their own fashion. By tracking both the creation and spread of these songs about the Soviet-Afghan war (referred to in this essay as either the “Soviet-Afghan War” or, more simply, the “Afghan War” as it is known in Russian), we can find vital, overlooked expressions of if not protest then discontent - among the many bubbling to the surface during the last decade of the USSR. This thesis therefore presents a chronological analysis of representative songs from the Soviet-Afghan war that also takes their popularity and methods of propagation -- the material technologies that allowed for this music to be spread -- into account, plotted alongside the major turning points of the war. It uncovers an otherwise forgotten form of discourse between soldiers about both the war itself, as well as the Soviet government, exploring the political implications of the war’s musical memorialization.
ContributorsBellard, Alex (Author) / Schmelz, Peter (Thesis director) / Stoff, Laurie (Thesis director, Committee member) / Historical, Philosophical & Religious Studies (Contributor) / School of International Letters and Cultures (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05