Journal: Biomedical Engineering Letters

Article Title: Wearable EEG and beyond

doi: 10.1007/s13534-018-00093-6

Figure Lengend Snippet: Comparison of two different electrode configurations shows how the presence/positioning of a reference electrode can distort the signals collected from a test electrode. a Test set up using a two electrode electro-physiological recorder. Electrodes in the blue test case (1 and 2) are placed on the wrist. Electrodes in the red test case (A and B) are on the wrist and chest. No third reference electrode is present when using the camNtech actiwave. b Wrist only recordings are very low in amplitude with no clear QRS complex. c With the chest electrode present a QRS complex apears at the wrist

Article Snippet: ECG recordings are then performed at different points in time, here using a camNtech actiwave two electrode ECG recorder [ 58 ].

Techniques:

Journal: Frontiers in Psychology

Article Title: Neural Correlates of Visuospatial Attention to Unseen Stimuli in Hemianopic Patients. A Steady-State Visual Evoked Potential Study

doi: 10.3389/fpsyg.2019.00198

Figure Lengend Snippet: Within-subjects attention effect. Permutation t -test comparisons between attended (first column) and unattended (second column) for (A) healthy participants and (B) hemianopic patients. Topographical maps in columns 1 and 2 represent the power of frequency (μV 2 ) for each condition attended and unattended, respectively. Maps in the 3rd column represent t values of the comparison between attended and unattended conditions; blue points indicate the electrode sites where the power of frequency in the attended condition was significantly higher than in the unattended condition after the FDR correction calculated separately for each comparison. The maximum p value accepted after FDR correction is indicated in the tittle of the 3rd column.

Article Snippet: An elastic cap with 59 active electrodes (ActiCap, Brain Products GmbH, Munich Germany) placed according to the 10-10 International System was used.

Techniques: Comparison

Journal: Frontiers in Psychology

Article Title: Neural Correlates of Visuospatial Attention to Unseen Stimuli in Hemianopic Patients. A Steady-State Visual Evoked Potential Study

doi: 10.3389/fpsyg.2019.00198

Figure Lengend Snippet: Between-subjects attentional effect. Permutation t -test comparisons of the effect of attention (i.e., attended – unattended) between healthy participants and hemianopic patients in blind (upper row) and sighted (lower row) hemifields. Topographical maps in columns 1 and 2 represent the power of frequency (μV 2 ) for each condition attended and unattended, respectively. Maps in the 3rd column represent t values of the comparison between attended and unattended conditions; blue points indicate the electrode sites where the power of frequency in the attended condition was significantly higher than in the unattended condition after the FDR correction calculated separately for each comparison. The maximum p value accepted after FDR correction is indicated in the tittle of the 3rd column.

Article Snippet: An elastic cap with 59 active electrodes (ActiCap, Brain Products GmbH, Munich Germany) placed according to the 10-10 International System was used.

Techniques: Comparison

Journal: Biosensors

Article Title: Electrical Conductivity Measurement in Human Liver Tissue: Assessment on Normal vs. Tumor Tissue and under In Vivo vs. Ex Vivo Conditions

doi: 10.3390/bios14080382

Figure Lengend Snippet: Arrangement of in-line, four-needle electrodes used to measure electrical impedance. The two outermost electrodes injected the electrical current, while the two central electrodes picked up the electrical voltage (scale in mm).

Article Snippet: A four-electrode probe was assembled with two pairs of SDN Model RD/BK 12/1500, 90° electrodes (inomed Medizintechnik GmbH, Emmendingen, Germany).

Techniques: Injection