Table 1

Recent ERP and MEG papers reporting P1 and N170 topographic distributions. ERP components were recorded in response to faces and other visual objects over the left and right occipital/temporal areas.

Papers (Authors and year)

# Ss

Gender

P1 and N1 distribution and effects

Right asymmetry for face processing


F

M

P1

N1


[14] Batty & Taylor (2003)

26

13

13

P1 larger over the RH but not sensitive to emotions or face-specific. N1 emotion-specific but bilateral.

Yes (Not face- specific)

No

[43] Bentin et al. (1999)

1

-

1

Prosopagnosic patient with right temporal abnormality and not face-sensitive N170.

Yes

[44] Caldara et al. (2004)

12

6

6

N1 larger over the RH to both Asian and Caucasian faces.

-

Yes (not race-specific)

[45] Campanella et al. (2000)

12

-

12

Face identity sensitive N170 larger at right posterior/temporal site.

-

Yes

[46] Esslen et al. (2004)

17

10

7

N170 to neutral faces activates the right fusiform gyrus (LORETA).

-

Yes

[47] George et al. (2005)

13

7

6

Mooney faces. P1 bilateral not modulated by face inversion. N1 larger on the right hemisphere to both inverted and upright faces.

No

Yes (to both inverted and upright faces)

[48] Gliga et al. (2005)

10

7

3

N1 larger over the RH to both bodies and faces.

-

Yes

[15] Halgren et al. (2000)

10

2

8

Overall, laterality greater on the right than the left in fusiform face-selective activity, but a high level of individual variability.

No

Yes

[20] Harris et al. (2005)

2

2

-

2 female prosopagnosic patients. For NM M170 not face-sensitive. Face selectivity effect (faces vs. houses) for KL >LH (RH = 17.3 fT, LH = 26.9 fT).

-

No

[20] Harris et al. (2005)

3

-

3

3 male prosopagnosic patients. For EB and KNL M170 not face-sensitive. Face selectivity effect for ML > RH. (RH = 57.6 fT, LH = 35.6 fT).

-

Yes

[20] Harris et al. (2005)

17

9

8

M170 larger to faces than houses and tended to be larger at LH (p < 0.08).

No

[18] Henson et al. (2003)

18

8

10

Face sensitive N170 was larger at superior temporal area.

-

Yes

[49] Herrmann et al. (2005)

39

19

20

Bilateral P1 and N1 larger to faces than buildings.

No

No

[50] Holmes et al. (2005)

14

5

9

Not specifically mentioned. From inspection of Fig. 2. P1 much larger on the RH to both faces and houses. N1 larger on the RH to faces only (unfiltered stimuli).

Yes (Not face- specific)

Yes

[51] Itier & Taylor (2004)

36

18

18

Face specific P1 was bilateral. N170 was larger over the RH at parietal/occipital sites.

No

Yes

[52] Itier & Taylor (2004)

16

7

9

N170 to upright faces is bilateral

-

No

[53] Itier & Taylor (2004)

16

7

9

Face-specific P1 is larger over the RH. N1 was bilateral at occipital sites. It was larger at right parietal sites to objects, inverted faces, and upright faces.

Yes

Yes/no (to objects, inverted and upright faces.)

[21] Jemel et al. (2005)

15

10

5

No hemispheric asymmetry for P1 or N1 to faces.

No

No

[54] Kovacs et al. (2005)

12

4

8

Face (vs. hand)-specific N170 was larger over the RH.

-

Yes

[55] Latinus et al. (2005)

26

13

13

Mooney faces. Bilateral or left-sided P1 not sensitive to face-inversion. N1 larger on the RH to upright faces.

No

Yes

[19] Liu et al. (2000)

17

*

*

M170 larger to faces than animal and human forms at bilateral occipital/temporal sensors.

-

No

[22] Meeren et al. (2005)

12

9

3

Face-body compound images: lead main effect (p = 0.04) for P1 amplitude with O1>O2>Oz, but post hoc tests failed to reveal significant differences. ERPs to isolated faces: P1 and N1 to angry and fearful faces were not right-sided.

No

No

[16] Pizzagalli et al. (2002)

18

7

11

N1 larger over the right fusiform gyrus and affected by face likeness.

-

Yes

[17] Pourtois et al. (2005)

13

9

4

Unfiltered faces: P1 affected by emotional content (fear vs. neutral) in both hemispheres. N1 strongly right-lateralized to upright vs. inverted faces. LAURA source estimation for P1 and N1 topography in the left extra-striate visual cortex

No

Yes (but LH generator for source estimation)

[23] Righart & Gelder (2005)

12

10

2

N170 amplitudes were more negative for faces in fearful contexts compared to faces in neutral contexts, but only significantly for electrodes in the left hemisphere.

No

No

[56] Rossion et al. (1999)

14

5

9

N1 larger at posterior temporal sites to inverted faces.

No

Yes (not upright specific)

[6] Rossion et al. (2003)

16

6

10

N170 for faces compared to words in the right hemisphere only.

No

Yes

[57] Rousselet et al. (2004)

24

12

12

P1 larger on the RH for both objects, animal and human faces. N1 much larger on the RH for face than objects, but asymmetry found for objects as well.

Yes (Not face- specific)

Yes/No (Not face- specific)

[24] Valkonen-Korhonen et al. (2005)

19

15

4

Control group: N1 Larger at T5/T6 in an emotion detection task (happy upright faces).

-

No

[58] Yovel et al. (2003)

12

7

5

N1 to symmetrical and left or right hemi-faces was larger at right temporal site.

-

Yes


Proverbio et al. BMC Neuroscience 2006 7:44   doi:10.1186/1471-2202-7-44

Open Data