//Define the influence trial
	API.addTrialSets('influence',{
		data : {logged:'no', block: 2, condition: 'influence', score: 2},
		input: [
			{handle:'skip1',on:'keypressed', key:27} //to skip, press Esc and then Enter
		],
		layout: [
			{location:{left:2,top:2},media:{word:'key: E'}, css:{color:'black','font-size':'1em'}},
			{location:{right:2,top:2},media:{word:'key: I'},  css:{color:'black','font-size':'1em'}},
			{location:{left:2,top:5},media:{word:category2}, css:{color:'#4682B4','font-size':'2em'}},
			{location:{right:2,top:5},media:{word:category1},  css:{color:'#4682B4','font-size':'2em'}}
		],
		interactions: [
				{
					conditions: [{type:'begin'}],
					actions: [
						{type:'hideStim',handle:'All'}, 
						{type:'setInput',input:{handle:'influenceCheck',on:'timeout',duration:200}} //Blank screen for 200ms
					]
				},

				{
					conditions: [{type:'inputEquals',value:'influenceCheck'}],
					actions: [
						{type:'showStim',handle:'influenceStim'}, // show the mask screen. 
					    {type:'setInput', input:{handle:'space',on:'space'}},
					    {type:'resetTimer'},
						{type:'trigger', handle:'end',duration:2300}//end the trial 2300ms
					]
				},                

			/* Upon hitting space */
			{
				conditions: [
					{type:'inputEquals',value:'space'}
				],
				actions: [
					{type:'setTrialAttr',setter:{score:1}},
					{type:'removeInput',handle:'space'},
					{type:'hideStim',handle:'influenceStim'}, 
					{type:'log'}
				]
			},

			/* If subject doesn't hit space */
			{
				conditions: [
					{type:'inputEquals',value:'noSpace'},
					{type:'trialEquals',property:'logged', value:'no'}
				],
				actions: [
					{type:'setTrialAttr', setter:{score:0}},
					{type:'removeInput',handle:'space'},
					{type:'log'}
				]
			},

				// skip block -> if you press 'Enter' after pressing 'Esc'.
				{
					conditions: [{type:'inputEquals',value:'skip1'}],
					actions: [
						{type:'setInput',input:{handle:"skip2",on: 'enter'}}
					]
				},
				// skip block -> if you press 'Enter' after pressing 'Esc'.
				{
					conditions: [{type:'inputEquals',value:'skip2'}],
					actions: [
						{type:'goto', destination: 'nextWhere', properties: {blockStart:true}},
						{type:'endTrial'}
					]
				},

			/* End trial */
			{
				conditions: [{type:'inputEquals', value:'end'}],
				actions:[
                    {type:'trigger', handle:'noSpace'},
					{type:'endTrial'}
				]
			}
			
			], // end interactions
			
			stimuli : 
			[
				{inherit : 'influenceStim'}
			]
	});