ViSaGe MKII Stimulus Generator

ViSaGe-Product-Main-Image.jpg

ViSaGe makes it simple to present calibrated visual stimuli on CRT, LCD, DLP and OLED based displays with precision timing, and provides a robust and reliable mechanism to synchronise the stimulus presentation with external data collection equipment, including button boxes or eye trackers, motion trackers, electrophysiological amplifiers, and MRI scanners. It is the ideal choice for cognitive, psychophysical, and neurophysiological investigations of vision and the brain. 

Guide Price: £7150

SKU: M0183

Technical Specification
  • Graphics engine: 4 Lane PCI Express
  • Graphics configuration: Dedicated stimulus display (the ViSaGe is not a replacement PC graphics card and does not run Windows)
  • Analogue Video output: 14 bit video DACs; 14 bit resolution per colour channel; 165 MHz pixel clock; 200 kHz line scan rate; up to 350 Hz frame rate
  • Digital Video output: single-link DVI; up to 14 bit resolution with temporal dithering enabled; 165 MHz pixel clock
  • Display memory: 256 MB video memory; configured as 32 bits per pixel; separate pixel and overlay planes
  • Offscreen memory: Dependent on PC RAM; used for storage of precalculated image sequences
Connectivity
  • Digital I/O: Ten TTL-compatible inputs; ten TTL-compatible outputs
  • Triggers: Dedicated TTL-compatible Trigger In and Trigger Out
  • Analog in: Six inputs, 16 bit, ±5V signal range, 500 Hz bandwidth, free running or synchronised to the stimulus display
  • Analog out: Two outputs, 16 bit, ±5V signal range, updates are frame synchronous
  • Response box: Built in infra-red receiver; built in speaker for feedback; compatible with CB6 & CT6. Cedrus RB-x30 series devices and Lumina are supported via the Digital Input port.
  • Stereo goggle: Compatible with FE-1 stereo goggles; VESA-compatible shutter glasses. Requires adapter cables.
Connectors
  • Video output: DVI-I output for connection to analog or digital stimulus display
  • Analog I/O: Six BNC inputs; two BNC outputs
  • Digital I/O: Trigger In BNC, bi-coloured status LED; Trigger Out BNC, bi-coloured status LED; 25 way D connector
  • Computer interface: USB B input
  • Ancillary equipment: Dual 5 pin Tyco Triad type 01 circular connectors
Supplied Software
  • MATLAB: CRS Toolbox for MATLAB (R2007 or later)
  • Windows programming:VSG Software Library v8.3 or later for 32 bit and 64 bit Windows
  • Demonstration programs: For MATLAB, Delphi, Visual C++; source code provided
  • Backwards compatibility: Native VSGv6 programs for the VSG2/2, VSG2/3, VSG2/4 and VSG2/5 can be recompiled and run on ViSaGe
Packaging
  • Framestore: x4 or x16 PCI Express card (modified 3DLabs R500 PCIe card)
  • Control Unit: 280 mm x 100 mm x 100 mm black anodised aluminium tower
  • Supplied cables: 2 m DVI-D video cable for connection between framestore and Control unit; 2 m DVI-I to VGA video cable for connection to stimulus display; DVI-I to VGA adapter Windows desktop output; 1.5m USB cable
  • Software: Internet download only. Login to MyCRS, then return to ViSaGe MKII page to view Product Support area. Product Support is only visible when logged into MyCRS.
  • Power: Region-specific 7.5 V wall mount PSU
Minimum System Requirements
  • Computer: Dell Precision T1700 Workstation or similar with unoccupied x4, x8, x16 PCIe slot, one free USB2 port; contact CRS for details of the latest models
  • Dual displays: SVGA display for Windows desktop (i.e. 800x600 @ 60 Hz), VGA CRT monitor for Stimulus Display (i.e. 640 x 480 @ 60 Hz)
  • Operating system: 32 bit Microsoft Windows XP Pro SP3, 32 bit Windows 7, 64 bit Windows 7, 32 bit Windows 8.1 or 64 bit Windows 8.1.
Hardware featureVSG hardware version
ViSaGe PCIeViSaGe AGPVSG2/5VSG2/4VSG2/3
PC bus type 4 lane, PCI Express 66 MHz, 64 bit, 4x AGP 33 MHz, 32 bit PCI 8 MHz, 16 bit ISA 8 MHz, 16 bit ISA
Max. transfer rate from PC DRAM >40 MB/s, plus hardware acceleration >40 MB/s, no hardware acceleration 4 MB/s 1.5 MB/s 1.5 MB/s
Output resolution 14 bit 14 bit 15 bit 15 bit, 8 bit 12 bit, 8 bit
DAC system 3 x various manufacturers 3 x various manufacturers 2 x ADV7162 2 x Bt460 2 x Bt460
Graphics processor 3DLabs Wildcat P25 3DLabs Wildcat P9 TMS34020 TMS34020 TMS34020
Graphics processor speed N/A N/A 50 MHz 40 MHz 40 MHz
Framestore - standard configuration (AKA "VideoPage" memory area) 256 MB 256 MB - [1] 8 MB 4 MB 4 MB
Framestore - add-on sizes N/A N/A 24 MB 32 MB, 16 MB 32 MB, 16 MB
Max. framestore size 256 MB 256 MB - [1] 32 MB 68 MB (2 x 32 MB) 68 MB (2 x 32 MB)
Framestore pixel size 4 bytes 4 bytes 1 byte or 4 bytes 1 byte 1 byte
VideoPage video modes 8 bit palette
24 bit true colour
8 bit palette
24 bit true colour
8 bit palette
24 bit true colour
8 bit palette 8 bit palette
Overlay plane size (AKA "OverlayPage" memory area) 16 MB 16 MB 2 MB 2 MB 2 MB
OverlayPage pixel size 4 bytes 4 bytes 1 byte 1 byte 1 byte
OverlayPage video modes 8 bit palette
24 bit true colour
8 bit palette
24 bit true colour
2 bit palette 4 bit or 8 bit palette, 4 bit or 8 bit palette
On-board, non-display memory (AKA "ScratchPage" memory area) 8 MB - [2] 8 MB - [2] 8 MB 4 MB 4 MB
ScratchPage pixel size 4 bytes or 1 byte 4 bytes or 1 byte 1 byte or 4 bytes 1 byte 1 byte
ScratchPage video modes 8 bit palette
24 bit true colour
8 bit palette
24 bit true colour
8 bit palette 8 bit palette, 8 bit palette
Local, non-display memory (AKA "HostPage" memory area) Unlimited - [3] Unlimited - [3] Unlimited - [3] Unlimited - [3] Unlimited - [3]
HostPage pixel size 4 bytes or 1 byte 4 bytes or 1 byte 1 byte or 4 bytes 1 byte 1 byte
HostPage video modes 8 bit palette
24 bit true colour
8 bit palette
24 bit true colour
8 bit palette
24 bit true colour
8 bit palette, 8 bit palette
Digital I/O Ten in
Ten out
Ten in
Ten out
Ten in
Ten out
Eight in
Nine out
Five in
Nine out
Analog I/O Six 16 bit in
Two 16 bit out
Six 16 bit in
Two 16 bit out
Five 12 bit in
One 12 bit out
Seven 12 bit in
One 12 bit out
Seven 12 bit in
One 12 bit out
Hardware reaction timing
(requires CB6, CT6, CB3 or CT3 response box)
Yes (only CB6, CT6) Yes (only CB6, CT6) Yes Yes Yes
Max. pixel clock 160 MHz 160 MHz 150 MHz 120 MHz 120 MHz
Max. line rate 200 kHz 200 kHz 200 kHz 200 kHz 200 kHz
Max. frame rate 200 Hz 200 Hz 500 Hz 500 Hz 500 Hz
Support for VSGDSP No No No Yes Yes
Support for RG1, RG2 No No No Yes Yes
Supported in VSG software version 8.1 8 8, 6 8, 6, 5, 4 8, 6, 5, 4
 Important Notes

 [1] - The original ViSaGe framestore was provided on a dual-head AGP graphics card. The framestore memory space was shared between the Windows desktop and the VSG Stimulus Display. This means that some of the 256MB area was reserved for use by the Windows display.

 [2] - The ViSaGe on-board, non-display memory space is emulated using main PC memory and is provided only for backwards compatibility. There is no additional benefit in using this memory space compared to the off-board, non-display, virtual memory space.

 [3] - The off-board, non-display memory space is a virtual VSG memory area which uses main PC memory. The memory space size is dependent on the amount of free RAM in your PC.

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