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Latest Impact Factor figures from Elsevier's Neuroscience Journals

We are pleased to bring you the latest Impact Factor figures from Elsevier's Neuroscience journals. Highlights include...

journal cover imageBrain Research Reviews
2009 Impact Factor
WAS
7.390
2010 Impact Factor
NOW
8.842
impact factor bar-chart
journal cover imageJournal Of Physiology-Paris
2009 Impact Factor
WAS
1.776
2010 Impact Factor
NOW
3.030
impact factor bar-chart
journal cover imageProgress In Neurobiology
2009 Impact Factor
WAS
9.140
2010 Impact Factor
NOW
9.966
impact factor bar-chart
journal cover imageNeuropharmacology
2009 Impact Factor
WAS
3.909
2010 Impact Factor
NOW
4.677
impact factor bar-chart

Calculating Impact Factors

WHAT IS AN IMPACT FACTOR?
The journal impact factor is a measure of the frequency with which the average article in a journal has been cited in a particular year. The impact factor helps you evaluate a journal's relative importance, especially when you compare it to others in the same field. The impact factor is calculated by dividing the number of citations in the current year to items published in the two previous years by the total number of items published in the two previous years.

Using Journal X as an example:
Cites in 2010 to items published in: 2009
2008
Sum
= 258
= 199
= 457
Number of items published in: 2009
2008
Sum
= 116
= 71
= 187
Calculation: Cites to recent items 457 = 2.444
Number of recent items 187

The 2010 Impact Factor for Journal X is 2.444

Journal Performance Measurements

Journal performance measurements offer a systematic, objective means to critically evaluate journals, and several indicators are available.

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