Bio 250 and Bio 450

Biology Research Spring 2006

last updated 25 April 2006 at 11:28 am

Student Presentations



DOI website for Scientific Papers

Experimental Protocols

Sigmastat and Sigmaplot files

Neophobicity Experiment

The Questions

Pictures and Spreadsheets

Key words: choice, macronutrient, sequence, food intake, caloric intake, sensory specific satiety, nutrition

Potential names for the project:

1. Is eating the most palatable food first really bad for you?

2. Does changing course sequence affect the macronutient intake in a meal?

3. Manipulating course sequencing to develop the most nutritious meal.

4. Can the order in which courses of a meal are eating affect total food and energy intake?

5. Does food sequence affect total food or macronutrient intake?

6. Effects of food sequence on food and macronutrient intake.

7. Meal sequence determines healthier choices in rats showing sensory specific satiety.

8. The effects of sequencing meals to manipulate food and caloric intake

9. Does the sequence in which courses are served after the total consumption?

10. How do palatability and SSS affect food, caloric, and macronutrient intake when foods are presented in sequential order?



Background Information

The NASA Research Experience for Undergraduates (REU) Grant
This website describes experiments which have been proposed and funded for the summer of 2005. Our work in the spring semester of 2005 is crucial in preparing for the summer research.

For our spring and summer research, we will simulate the condition of microgravity in space by conducting experiments on laboratory rats that are suspended from a special apparatus.


Presentations and Abstracts


Tips for producing effective Powerpoint Presentations

Advice for creating a good presentation

Template file for Research Poster (Powerpoint format)

Advice for creating a good poster


Instructions and Data Sheets

Spreadsheet with rat body weights

Student Presentations

11 April 2006


Effect of food deprivation and maintenance diet composition on fat preference and acceptance in rats
Physiology & Behavior, Volume 68, Issues 1-2, 1 December-15 December 1999, Pages 235-239
Zoe S. Warwick and Stephen J. Synowski


28 March 2006

Allison postponed until April 13

Does modification of olfacto-gustatory stimulation diminish sensory-specific satiety in humans?
M Romer, J Lehrner, V Van Wymelbeke, T Jiang, L Deecke & L Brondel
Physiology and Behavior 87(2006):469-477


Role of familiarity on effects of caffeine- and glucose-containing soft drinks.
HJ Smit, ML Grady, YE Finnegan, S-A C Hughes, JR Cotton, & PJ Rogers
Physiology and Behavior 87(2006):287-297.

21 March 2006


Effects of dietary fat, nutrition labels, and repeated consumption on sensory-specific satiety
DL Miller, EA Bell, CL Pelkman, JC Peters & BJ Rolls. Physio & Behav 2000(71):153-158



Combined effects of energy density and portion size on energy intake in women
TVE Kral, LS Roe, & BJ Rolls. Am J Clin Nutr 2004(79):962-968



14 March 2006

Kim Trimble

Sex differences in behavioral taste responses to and ingestion of sucrose and NaCl solutions by rats
Physiology & Behavior, Volume 80, Issue 5, February 2004, Pages 657-664
Kathleen S. Curtis , Linda M. Davis , Amy L. Johnson , Kelly L. Therrien and Robert J. Contreras

Allison Thomas

Effects of age on sensory-specific satiety
BJ Rolls and TM McDermott
Am J Clin Nutr 1991:54:988-996


7 March 2006

Kim Trimble

Palatability, food intake and the behavioural satiety sequence in male rats
Y. Ishiia, J. E. Blundella, J. C. G. Halfordb and R. J. Rodgers
Physiology & Behavior Volume 80, Issue 1 , October 2003, Pages 37-47

Michelle Bertling

Colantuoni, C, Rada P, McCarthy J, Patten C, Avena NM, Chadeayne A, and Hoebel BG. Evidence that intermittent, excessive sugar intake causes endogenous opioid dependence. Obes Res 10: 478-488, 2002

Jai-Sheena Garnett

Neuropeptide Y administration into the amygdala alters high fat food intake
S.D. Primeaux, D.A. York, G. A Bray
Peptides 2006 (in press)

28 February 2006

Tim Beckner

Sensory-specific satiety in affected more by volume than by energy content of a liquid food.
EA Bell, SL Roe, & BJ Rolls
Physiology and Behavior 78(2003)593-600

21 Feb 2006

Allison Thomas

Effect of Roux-en-Y Gastric Bypass on Satiety and Food Likes: The Role of Genetics.
Journal of Gastrointestinal Surgery, Volume 10, Issue 2, Pages 270-277
R. Thirlby, F. Bahiraei, J. Randall, A. Drewnoski


14 Feb 2006

Jai-Sheena Garnett

Overeating of palatable food is associated with blunted leptin and ghrelin responses.
Lindqvist, A. et al.
Regulatory Peptides 130(2005)123-132
doi access number (paste into DOI website) doi:10.1016/j.regpep.2005.05.002

Tim Beckner

A. Hajnal, G. P. Smith, and R. Norgren
Oral sucrose stimulation increases accumbens dopamine in the rat
Am J Physiol Regulatory Integrative Comp Physiol, January 1, 2004; 286(1): R31 - 37.

Papers pending


Nucleus accumbens mu-opioids regulate intake of a high-fat diet via activation of a distributed brain network. Will MJ, Franzblau EB, Kelley AE.

Energy density but not fat content of foods affected energy intake in lean and obese women

Combined effects of energy density and portion size on energy intake in women

Allison's prospective papers

The questions

From Three Meal Sequence Experiments

Does the order of food presentation affect total intake?

What sequence of foods results in the greatest/ least food intake?

Can the sequence of foods be manipulated to maximize/ minimize food intake?

Does the response to food change over time?

Does the weekly treatment (test meal sequence) affect weight gain?

Should food intake be normalized to body weight?

Do rats express sensory specific satiety based on the order in which foods are presented?

Which food is prefered by rats when offered sequentially?


Cafeteria Experiments

Which food (rat chow, onion rings, Froot Loops) is prefered by rats when offered simultaneously?

What is the timecourse of food intake in the cafeteria experiments?

Do rats consume the most palatable food first?

Do rats consume more of the most palatable food?

When less palatable foods are available simultaneously with more palatable foods, do rats consume any of the less palatable foods?

Photographs needed


Cafeteria experiment

Three foods

A rat eating

A rat resting