• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Experiment to test touch sensing in boys and girls

Extracts from this document...

Introduction

´╗┐Barbara Marban P. 8 27/03/21012 What is the reception difference in touch sensory neurons between boys and girls? Question: Are males as effective as males in the recognition of Styrofoam letters? Purpose: The purpose of this experiment was to understand the behavioral differences between genders in 5 and 6 year olds when they were exposed to different tactile objects. Hypothesis: If both genders are exposed to the same tactile objects, then females will be faster at correctly identifying the letters proposed. Background: There are many sensory neurons in the skin which serve to indicate, pain, temperature (hot and cold), touch and pressure. The sensory neuron relevant for this experiment is located between the epidermis and the dermis and is second farthest from the surface of the skin, the farthest being pressure. The closest neurons are those that indicate for pain, hotness and coldness. Controls and Variables: Independent Variable: - Styrofoam letters presented to the students hidden inside the box. Dependent Variable: - The number of letters each gender got correct. - The time it took each gender to try to guess the letter they were feeling. ...read more.

Middle

*Uncertainty calculated to +/-1 instead of +/-0.1 in regard of the possible human error. Sample Average Calculation: 5+4+2+5+4+8+7+12+15+4+10+5+10+12+26+5+15+6+9=185 163/19=8.6 Average=8.6 +/- 1 seconds Number of guessed letters that were correct for both boys and girls** Student Boys Girls 1 1 0 2 1 1 3 0 0 4 0 0 5 1 1 6 1 1 7 1 1 8 1 0 9 0 1 10 1 1 11 0 0 12 1 1 13 0 1 14 0 1 15 0 1 16 0 1 17 0 0 18 1 1 19 1 1 Total 10 13 **No Uncertainty because there was no possibility for error. **No Uncertainty because there was no possibility for error. Sample Total Calculation: 1+1+0+0+1+1+1+1+0+1+0+1+0+0+0+0+0+1+1=10 Total answers correct=10 Qualitative data Boy Girls Boys cheer so that their teammates guess faster. Say a letter immediately after putting their hand in. Some repeat the letter the person behind them said even though it is not their letter. Cheer for the correct answer, ?what is it.? Not impatient Think about what they are going to say. ...read more.

Conclusion

Another possible error was how the time was calculated with the stopwatches. There was only one person for two stopwatches, therefore the uncertainty was changed to +/- 1 because taking into consideration the time it takes the child to say the word, your brain to interpret that information and then stop the time a second could easily go by. If both children ended at similar times, it is possible that the stopwatch was stopped at a later time. To improve the lab we should perform a parallel lab in which the only dependent variable is the number of letters correct. Through this we would be able to determine if the time of analysation affected the number of correct guesses and if under pressure, boys or girls were better at identifying the letter. Another change that could be preformed would be to increase the number of students that were experimented upon. This would increase the range of data and its accuracy. The final possible change that could be done would be to have more that one person calculating the time so that the possible human error would decrease from +/-1 to +/- 0.1. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our International Baccalaureate Biology section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related International Baccalaureate Biology essays

  1. Marked by a teacher

    Neurology and Behaviour. Focus question: Is there an increase in the perception and ...

    5 star(s)

    Graph 2: An Area Distribution of highest disgust responses for each gender The Area Distribution Graph shows how the Female Disgust Response more than often exceeds that f the Male Dsigust Respnse. The results show that Male disgust responses were greater for image numbers five, twelve, fifteen, eighteen and twenty.

  2. Ecology Open Investigation Does the geographic location affect the biotic and abiotic ...

    Table 3.2 - This table presents information relating to both data collected from Brown Lake and 18 Mile Swamp. Information such as the t-value, standard deviation and degrees of freedom of both data is shown in this table. This table also compares the abiotic features of both sites and determining if the t-value accepts of rejects the Null Hypothesis.

  1. Reaction Time

    But it is also interesting to know if participating in different sports result in different improving of one's reaction time. All sports do not carry out the same exercises and therefore do not give same results. In order to have a further understanding about this investigation we need to know more about the sports that were chosen to be investigated.

  2. LAB-What infuences blood pressure

    + 92,2 182 98 136 81 132 82 71 + 54,6 170 70 116 71 115 63 72 + 64,5 180 71 107 67 102 56 73 + 65,5 161 73 137 84 144 92 74 + 55,8 166 68 + 110 72 107 66 75 + 110,5 192 94

  1. The effect of pvc piping on the breathing/heart rates of male year 12 students

    Sample Controlled variable 10 year 12 male students from Queensland academy of health science. Each subject will be placed through every condition. Environment Controlled variable Inside where the air is cool and not overly humid, sounds or other distractions are to be kept to a minimum.

  2. Extended Essay: An Investigation Into the Differences In Life Expectancy For Males and Females ...

    I will visit Twickenham Cemetery and collect data showing the year of death, the age of the person at the time of their death, and the sex of the person, for two different time frames. The first will be 1900-1920 and the second will be 1980-2000.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work