Table 2 Descriptive statistics of participants’ performance in four different odor conditions in all the presented tests during the three sessions.

Olfactory testing (Sniffin’Sticks)

Odor Threshold

First

7.5

2

6.7

2.3

6.1

2.4

6.1

3.4

Second

7.3

2.5

6.5

2.5

7

2.7

7.5

4.1

Third

Identification

First

14.2

1.1

14.2

1.2

13.8

1.3

13.6

1

Second

14.6

1.1

13.9

1.2

14.2

1.5

13.9

1.2

Third

Discrimination

First

13.7

1.6

13.3

1.5

13.3

1.7

13

1.8

Total assessment of olfactory functions

First

35.4

2.8

34.2

3.6

33.2

3.7

32.6

4.1

Significance of olfaction

First

36.8

7.2

32.3

6.8

34.9

5.9

33.2

5.3

Second

35.9

6.7

32.8

6.2

34.2

6

31.7

6.2

Third

35.8

7.1

32.5

6.1

34.1

6.8

32

7.4

Cognitive testing

Executive control (Trail Making Test, part B)

First

50.1

20.9

47.3

10.6

50.3

19.7

57

21.5

Second

40

16

46.6

29.2

41.8

24.2

43.6

15.6

Third

36.9

15.4

38.6

17.8

40

21.8

39.3

11.8

 Spatial spans (Corsi Block tapping Test)

First

6

1.6

6.5

1.3

6.2

1.6

6.3

1.4

Second

6.3

1.5

6.3

1.3

6.4

1.6

6.4

1.4

Third

6.3

1.3

6.6

1.3

6.7

1.6

6.2

1.5

Non-cognitive tests

Anxiety (HADSA)

First

5.1

3.2

5.4

2.6

4.9

3

6.3

2.8

Second

4.6

3

5.7

3.7

4.7

3.4

6.3

3.2

Third

5.2

3.7

5.7

2.9

4.2

3.2

6.8

4.1

Depression (HADSD)

First

2.1

2.3

2.9

2.2

2.4

2.7

3.1

2.2

Second

2.4

2.7

2.8

2

2

2.6

3.8

2.7

Third

2.3

2.7

2.9

2.1

2

2

4.5

3.6

Personality (NEO Five Factor Inventory)

 Neuroticism

First

17.6

8.1

19

7.7

19

7.5

21.3

7

 Extraversion

First

29.3

6

29.4

5.5

29.7

5.6

28.8

5.7

 Openness

First

32.5

5.9

30.7

6.3

31.6

6.8

29.3

6.1

 Agreeableness

First

32.8

5.7

31.6

5.1

34.1

5

32

6.3

 Conscientiousness

First

35.5

5.1

33.7

7.3

34.7

6.7

33.8

6