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Phil Jasper thesis defense

Phil Jasper will be defending his Master’s Thesis titled: USING THE BITE COUNTER TO OVERCOME THE EFFECT OF PLATE SIZE ON FOOD INTAKE on Friday, May 2, 2014, in Bracket Hall, Room 419. (Contact Phil about the time).

ABSTRACT:

According to a recent National Health and Nutrition Examination Survey, overweight and obesity have reached epidemic levels in the United States (Flegal et at., 2010, NHANES, 2010) There are many treatments for overweight and obesity, the most popular being behavioral interventions (Berkel et al., 2005). Self-monitoring is one of the most important factors of successful behavioral interventions (Baker & Kirschenbaum, 1993). The Bite Counter is a newly developed tool for weight loss that aids in the self-monitoring process (Dong et al., 2011). The purpose of the current study was to determine if bite count feedback and an instruction on the number of bites to take could overcome the known environmental cue of plate size where eating from larger plates causes individuals to eat more (Wansink 2004). Data were collected from 112 participants eating a meal of macaroni and cheese in a laboratory setting. In a 2×2 design, the participants were assigned to one of four conditions: instruction given and small plate, instruction given and large plate, instruction not given and small plate, or instruction not given and large plate. Grams consumed and bites taken were measured post meal as the main dependent variables. A 2×2 ANOVA of grams consumed revealed a main effect of INSTRUCTION (F(1,104)= 5.297, p=.023, η² = .048), a main effect of PLATE SIZE (F(1,104)= 5.798, p=.018, η² = .053), and an interaction (F(1,104)= 7.695, p= .007, η² = .069). A 2×2 ANOVA of bites taken revealed a main effect of INSTRUCTION (F(1,104)= 7.47, p= .007, η² = .067), a main effect of PLATE SIZE (F(1,104)= 14.264, p< .001, η² = .121), and an interaction (F(1,104)= 14.964, p< .001, η² = .126). The results suggest that a given instruction on the number of bites to take along with feedback on the number of bites taken, can partially overcome a known environmental cue of plate size.

Committee Chair: Dr. Eric Muth
Committee Members: Dr. Adam Hoover and Dr. Tom Alley.

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Drew Morris’s thesis proposal

Student Name: Drew Morris
Title of Thesis: The Cold Driver: Driving Performance Under Thermal Stress
Type: Thesis Proposal
Thesis Advisor: Dr. June J. Pilcher
Thesis Committee Members: Dr. June Pilcher, Dr. Fred Switzer, Dr. Chris Pagano
Time and Location: Tuesday, April 29th at 1:30pm, Brackett 419
Abstract:
Exposure to cold environments can impact complex task performance and increase cognitive and physiological error in response to thermal stress. Critically, the task of driving a vehicle requires the use of calibrated mental and physical actions to be conducted safely without error. Few studies have examined the effects of cold stress on driving performance and none have explored the potential for advanced driver safety systems to detect error. Active vehicle safety systems which monitor dangerous driving behavior due to drowsiness have been research and developed, though technology associated with thermal stressed driving error is unexplored. The current study aims to examine the effects of cold stress by way of skin cooling on driving simulator performance, and evaluate vehicle behavior metrics for possible dangerous driving detection systems. Driving under cold stress is expected to result in systematic vehicle behavior and driving performance error which can be utilized for future safety system development.

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Bliss Altenhoff’s dissertation proposal

Perceiving Soft Tissue Break Points in the Presence of Friction

Tuesday, April 29th at 10:00am
Brackett 419

Committee: Dr. Chris Pagano (chair), Dr. Tim Burg, Dr. Ben Stephens, Dr. Rich Pak

Abstract: In minimally invasive surgery (MIS), surgeons face several perceptual challenges due to the remote interaction with the environment, such as distorted haptic feedback through the instruments due to friction produced from the rubber trocar sealing mechanisms at the incision site. As a result, surgeons sometimes unintentionally damage healthy tissues during MIS due to excessive force. Research has demonstrated that useful information is available in the haptic array of soft tissues, which allows novices to successfully perceive the penetration distance remaining until a material will fail based on displacement and reactionary forces of simulated tissues using a haptic invariant, Distance-to-Break (DTB). Attunement and calibration training will be used in the current study to investigate whether observers are able to identify material break points in nonlinear compliant materials through haptic force application, while ignoring haptic stimulation not lawfully related to the properties specifying DTB, including friction. A pretest, feedback, posttest, and transfer-of-training phase design will be used, allowing participants to probe four virtually simulated materials at varying levels of friction: no friction, low friction, and high friction in the first experiment, and pull the simulated tissues in the second experiment to investigate if perception of DTB generalizes to other tasks used in MIS.

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Rebecca Cook’s Thesis Proposal Presentation

Title: Correlational Study of the Handoff Communication Process as a Result of Variation in Staffing Levels
Committee: Dr. Lee Gugerty (Chair), Dr. David Neyens (Co-chair), Dr. June Pilcher
When: April 22, 2014 @ 1:30pm
Where: Brackett 122
Abstract: The patient handoff is an intricate process that takes on many forms within the healthcare domain. One incredibly common, yet complex handoff is that from the Emergency Department (ED) to the respective floor unit for the extended care of a patient upon hospital admission. While the specifics of the protocol for this process vary between institutions, the importance of a successful handoff for patient safety is universal. This study will examine the effects of the variation in staffing levels on the communication handoff process based on the time of day at which the process occurs.

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Morris: The Cold Driver: Driving Performance Under Thermal Stress

Title of Thesis: The Cold Driver: Driving Performance Under Thermal Stress

Type: Thesis Proposal

Thesis Advisor: Dr. June J. Pilcher

Thesis Committee Members: Dr. June Pilcher, Dr. Fred Switzer, Dr. Chris Pagano

Time and Location: Tuesday, April 29th at 1:30pm, Brackett 419

Abstract:
Exposure to cold environments can impact complex task performance and increase cognitive and physiological error in response to thermal stress. Critically, the task of driving a vehicle requires the use of calibrated mental and physical actions to be conducted safely without error. Few studies have examined the effects of cold stress on driving performance and none have explored the potential for advanced driver safety systems to detect error. Active vehicle safety systems which monitor dangerous driving behavior due to drowsiness have been research and developed, though technology associated with thermal stressed driving error is unexplored. The current study aims to examine the effects of cold stress by way of skin cooling on driving simulator performance, and evaluate vehicle behavior metrics for possible dangerous driving detection systems. Driving under cold stress is expected to result in systematic vehicle behavior and driving performance error which can be utilized for future safety system development.

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HFES Student Chapter Guest Speaker: Dr. Anne McLaughlin

Anne McLaughlin will be speaking to us about Human factors in veterinary medicine at our third HFES Month event! Come hear this talk and enter your name in a drawing to win an HF/E prize. Snacks will be provided.

WHEN: April 18th at 1:00pm
WHERE: Brackett 419

RSVP HERE (RSVP by April 15th)

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Cook: Correlational Study of the Handoff Communication Process as a Result of Variation in Staffing Levels

Title: Correlational Study of the Handoff Communication Process as a Result of Variation in Staffing Levels

Committee: Dr. Lee Gugerty (Chair), Dr. David Neyens (Co-chair), Dr. June Pilcher

When: April 22, 2014 @ 1:30
Where: Brackett 122

Abstract: The patient handoff is an intricate process that takes on many forms within the healthcare domain. One incredibly common, yet complex handoff is that from the Emergency Department (ED) to the respective floor unit for the extended care of a patient upon hospital admission. While the specifics of the protocol for this process vary between institutions, the importance of a successful handoff for patient safety is universal. This study will examine the effects of the variation in staffing levels on the communication handoff process based on the time of day at which the process occurs.

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Altenhoff: Perceiving Soft Tissue Break Points in the Presence of Friction

Perceiving Soft Tissue Break Points in the Presence of Friction

Tuesday, April 29th at 10:00am
Brackett 419

Committee: Dr. Chris Pagano (chair), Dr. Tim Burg, Dr. Ben Stephens, Dr. Rich Pak

Abstract: In minimally invasive surgery (MIS), surgeons face several perceptual challenges due to the remote interaction with the environment, such as distorted haptic feedback through the instruments due to friction produced from the rubber trocar sealing mechanisms at the incision site. As a result, surgeons sometimes unintentionally damage healthy tissues during MIS due to excessive force. Research has demonstrated that useful information is available in the haptic array of soft tissues, which allows novices to successfully perceive the penetration distance remaining until a material will fail based on displacement and reactionary forces of simulated tissues using a haptic invariant, Distance-to-Break (DTB). Attunement and calibration training will be used in the current study to investigate whether observers are able to identify material break points in nonlinear compliant materials through haptic force application, while ignoring haptic stimulation not lawfully related to the properties specifying DTB, including friction. A pretest, feedback, posttest, and transfer-of-training phase design will be used, allowing participants to probe four virtually simulated materials at varying levels of friction: no friction, low friction, and high friction in the first experiment, and pull the simulated tissues in the second experiment to investigate if perception of DTB generalizes to other tasks used in MIS.

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HFES Student Chapter Guest Speaker: Dr. Chris Wickens on the role of effort in choice, safety, and healthcare

Chris Wickens will be speaking to Clemson HFES on “the role of effort in choice, safety, and healthcare” via Skype at our second HFES Month event! Come hear this talk and enter your name in a drawing to win an HF/E prize. Snacks will be provided.

WHEN: April 11th at 1:00pm
WHERE: Brackett 214

RSVP HERE (RSVP by April 8th)

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HFES Kickoff Scavenger Hunt!

Join us in a HF/E scavenger hunt. Sign up in teams no larger than 4 people and compete to show off your HF knowledge and win gift cards! Also, officer nominations will begin.

WHEN: April 4th at 1:30 pm
WHERE: Starting at McAdams 226

RSVP HERE

https://docs.google.com/forms/d/17Vvz5lEgjG9Pna8apnqcGToPsoGRA4K4kw00ruF0zFY/viewform

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