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True! I suppose I just never realised you could rest on one of the switches without causing any problem... Like I say, i'm sure this is something obvious to everyone else, but one of these things that, since it isn't written down in one place (like, ahem, a WIKI) it doesn't make its way into the general ethos. Cheers Simon Clinical Scientist ACT 0121 627 1627 ex 53245 -----Original Message----- From: A discussion list for Assistive Technology professionals. [mailto:[log in to unmask]] Sent: 23 June 2006 00:02 To: [log in to unmask] Subject: Re: Step Scanning with Head Switches I must admit to being a little confused (- becoming increasingly frequent these days). What do you usually set for a scanning mode using two switches? Generally step scanning removes the need for timing but the student does obviously need to be able to physically operate the two switches. Something to watch is that two switch scanning (especially head scanning can (does) have repercussions on the whole physical posture and tone of the student. I sometimes try the choose switch as a hand switch and the move switch as a single head switch. Most of our pupils if thy are using head switches have poor hand/arm control Since the choose switch is used less frequently it can be operated by a less controlled movement. Actually very few of our pupils are capable of controlling scanning access but It is also much easier to assist scan in a step scanning mode. for example see Linda Burkhart's article on www.lburkhart.com/hand2sw4s.htm. Richard Walter Meldreth Manor School Judge Simon wrote: > It only occured to me today that Step Scanning has a big advantage > over any other scanning method for head switching... So I documented > it here: > http://assistech.org.uk/doku.php?id=experiencebase:generalat:switch_scanning > _with_head_switches (-; > > No doubt it is only me that has just twigged this. > > Cheers > > Simon > > Clinical Scientist > ACT > 0121 627 1627 ex 53245 >